Anatomy MCQB Unit 2 - 2nd set

Which spinal nerve ramus has branches that serve the deep muscles and skin of the back? a) Posterior (dorsal) rami b) Anterior (ventral) rami c) Rami communicantes

a) Posterior (dorsal) rami

Which of the following has branches that belong to the sympathetic nervous system? a) Rami communicantes b) Anterior (ventral) rami c) Posterior (dorsal) rami

a) Rami communicantes

The denticular ligaments are an extension of the pia mater, which attach it to the arachnoid mater. a) True b) False

a) True

The posterior median sulcus is a shallow groove on the dorsal side of the spinal cord. a) True b) False

a) True

ependymal cells line brain ventricles and form cerebral spinal fluid a) True b) False

true

microgia are the phagocytic cells of the CNS a) True b) False

true

Select the structure(s) served by the radial nerve. a) deltoid muscle b) triceps brachii c) flexors of the wrist d) skin of superior portion of the chest and shoulder e) diaphragm

b) triceps brachii

which neuron type has only two cell major processes attached to its cell body? a) Multipolar b) Unipolar c) Bipolar

bipolar

which structure of the neuron will contain the greatest number of neurotransmitter receptors? a) the Nissl bodies b) the axoplasm c) the synaptic vesicles d) the dendrites

the dendrites

The _____ plexus serves the skin and muscles of the head, neck, and superior part of the shoulders and chest. a) cervical b) brachial c) thoracic d) lumbar

a) cervival

What is the best description of the epidural space? a) contains a protective cushion of fat and connective tissue b) between arachnoid mater and pia mater c) between dura mater and arachnoid mater d) contains interstitial fluid e) contains cerebrospinal fluid

a) contains a protective cushion of fat and connective tissue

Which connective tissue covers nerves? a) Perineurium b) Epimysium c) Endoneurium d) Epineurium

d) Epineurium

which type of neuroglia forms and maintains the protective covering around the axons of the CNS? a) oligodendrocytes b) microglia c) ependymal cells d) astrocytes

oligodendrocytes

Which of the following is FALSE regarding the sciatic nerve? It: a) arises from the lumbar plexus. b) splits at about the level of the knee into tibial and common fibular nerves. c) is the largest nerve in the body. d) sends branches to the hamstring muscles.

a) arises from the lumbar plexus.

From which plexus does the axillary nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

a) brachial

From which plexus does the long thoracic nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

a) brachial

From which plexus does the ulnar nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

a) brachial

The anterior gray horn contains both somatic and autonomic motor neuron cell bodies. a) True b) False

b) False

Select the muscle(s) served by the obturator nerve. a) anterior muscles of thigh (quadriceps and sartorius) b) adductor muscles of thigh c) gluteus maximus d) gastrocnemius and soleus muscles e) tibialis anterior and fibularis (peroneal) muscles

b) adductor muscles of thigh

What is the best description of the subarachnoid space? a) contains a protective cushion of fat and connective tissue b) between arachnoid mater and pia mater c) between dura mater and the wall of vertebral canal d) between dura mater and arachnoid mater e) contains interstitial fluid

b) between arachnoid mater and pia mater

From which plexus does the great auricular nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

b) cervical

From which plexus does the phrenic nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

b) cervical

The main plexuses formed by the anterior (ventral) rami of spinal nerves are: a) thoracic, lumbar, sacral, and coccygeal b) cervical, brachial, lumbar, and sacral. c) cervical, lumbar, sacral, and inguinal. d) cervical, lumbar, sacral, and coccygeal.

b) cervical, brachial, lumbar, and sacral.

The inferior extension of the pia mater that anchors the spinal cord to the coccyx is called the _____. a) cauda equina b) filum terminale c) denticulate ligament d) conus medullaris

b) filum terminale

Motor impulses that help maintain muscle tone and posture are conveyed from the brain through the spinal cord by the: a) direct pathways. b) indirect pathways. c) spinothalamic tracts. d) posterior columns.

b) indirect pathways.

Diverging circuits allow for transmission of nerve impulses from _____ neuron(s) to _____ neuron(s). a) several, one b) one, several c) unipolar, multipolar d) multipolar, unipolar

b) one, several

In lab you examine a nervous system tissue slide and identify satellite cells around unipolar neuron cell bodies. Which of the following classifications would be correct? a) anterior (ventral) root ganglion of PNS b) posterior (dorsal) root ganglion of PNS c) gray matter nucleus of CNS d) whiter matter tract of PNS e) white matter nerve of CNS

b) posterior (dorsal) root ganglion of PNS

There are _____ pairs of spinal nerves, consisting of the following groups: _____ pairs of cervical, _____ pairs of thoracic, _____ pairs of lumbar, _____ pairs of sacral, and _____ pair of coccygeal spinal nerves. a) 31, 8, 12, 5, 5, 1 b) 41, 8, 13, 6, 6, 2 c) 31, 7, 12, 5, 5, 1 d) 24, 9, 10, 4, 5, 3

c) 31, 7, 12, 5, 5, 1

The adult spinal cord extends from the _____ of the brain inferiorly to the superior border of the _____ lumbar vertebra. a) Midbrain; first b) Pons; third c) Medulla oblongata, second d) Medulla oblongata, fourth

c) Medulla oblongata, second

Motor neurons that supply skeletal muscles have cell bodies in _____ gray horns of the spinal cord, and their axons exit the cord via a/an _____ root. a) anterior (ventral), posterior (dorsal) b) posterior (dorsal), posterior (dorsal) c) anterior (ventral), anterior (ventral) d) posterior (dorsal), anterior (ventral)

c) anterior (ventral), anterior (ventral)

Select the structure(s) served by the median nerve. a) quadriceps femoris muscle b) extensors of the wrist c) flexors of the wrist d) skin of superior portion of the chest and shoulder e) diaphragm

c) flexors of the wrist

Select the muscle(s) served by the inferior gluteal nerve. a) anterior muscles of thigh (quadriceps and sartorius) b) adductor muscles of thigh c) gluteus maximus d) gastrocnemius and soleus muscles e) tibialis anterior and fibularis (peroneal) muscles

c) gluteus maximus

Which peripheral nerves are responsible for cutaneous sensation from the skin of the anterior abdominal wall as well as motor innervation to anterior abdominal wall muscles? a) median and musculocutaneous nerves b) sciatic and sural nerves c) intercostal (thoracic) nerves d) inferior and superior gluteal nerves

c) intercostal (thoracic) nerves

Which of the following is NOT a branch of a spinal nerve? a) ramus communicans (plural: rami communicantes) b) meningeal branch c) lateral ramus d) anterior (ventral) ramus

c) lateral ramus

The senses of pain and temperature are conveyed to the brain by: a) direct tracts. b) indirect tracts. c) lateral spinothalamic tracts. d) posterior columns.

c) lateral spinothalamic tracts.

From which plexus does the femoral nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

c) lumbar

From which plexus does the iliohypogastric nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

c) lumbar

Which of the following contains sensory information ONLY? a) anterior (ventral) root b) anterior (ventral) ramus c) posterior (dorsal) root d) posterior (dorsal) ramus

c) posterior (dorsal) root

Which of the following contain cell bodies of sensory neurons? a) anterior (ventral) gray horns b) posterior (dorsal) gray horns c) posterior (dorsal) root ganglia d) lateral gray horns

c) posterior (dorsal) root ganglia

The two main routes for sensory information traveling up the spinal cord to the brain are _____ tracts and _____ columns. a) direct, indirect b) spinothalamic, posterior c) reticulospinal, vestibulospinal d) corticospinal, corticobulbar

c) reticulospinal, vestibulospinal

Spinal nerves T2-T12 differ from all other spinal nerves in that: a) they do not branch to form rami. b) they are autonomic nerves. c) the anterior (ventral) rami do not contribute to a plexus. d) the posterior (dorsal) rami form a plexus.

c) the anterior (ventral) rami do not contribute to a plexus.

select the best description of an axon a) accumulates as yellow-brown granules as the cell ages b) contains a nucleus surrounded by cytoplasm c) receiving or input portion of a neuron d) carries nerve impulses toward another neuron, a muscle fiber, or a gland cell

carries nerve impulses toward another neuron, a muscle fiber, or a gland cell

Regeneration of nerve fibers in the central nervous system is highly unlikely because: a) there are no neurolemmas (sheaths of Schwann). b) oligodendrocytes inhibit axon regeneration. c) astrocytes rapidly form a physical barrier of scar tissue. d) all of these choices

d) all of these choices

The gray matter of the spinal cord: a) is subdivided into regions called horns. b) is surrounded by white matter. c) contains neuronal cell bodies. d) all of these choices

d) all of these choices

What is the best description of the pia mater? a) contains a protective cushion of fat and connective tissue b) most superficial meninx c) thick strong layer composed of dense, irregular connective tissue d) contains blood vessels that supply oxygen and nutrients to the spinal cord e) consists of collagen and elastic fiber network; has no blood vessels

d) contains blood vessels that supply oxygen and nutrients to the spinal cord

The two main routes for motor information traveling down the spinal cord are _____ pathways and _____ pathways. a) corticospinal, posterior column b) anterior spinocerebellar, posterior spinocerebellar c) gracilis fasciculus, cuneate fasciculus d) direct, indirect

d) direct, indirect

Select the muscle(s) served by the tibial nerve. a) anterior muscles of thigh (quadriceps and sartorius) b) adductor muscles of thigh c) gluteus maximus d) gastrocnemius and soleus muscles e) tibialis anterior and fibularis (peroneal) muscles

d) gastrocnemius and soleus muscles

What is the best description of the arachnoid mater? a) meninx closest to the bone of the vertebral column b) between subarachnoid space and pia mater c) contains a protective cushion of fat and connective tissue d) contains blood vessels that supply oxygen and nutrients to the spinal cord e) consists of collagen and elastic fiber network; has no blood vessels

e) consists of collagen and elastic fiber network; has no blood vessels

Select the structure(s) served by the phrenic nerve. a) quadriceps femoris muscle b) adductor muscles of thigh c) flexors of the wrist d) skin of superior portion of the chest and shoulder e) diaphragm

e) diaphragm

Select the muscle(s) served by the common fibular nerve. a) anterior muscles of thigh (quadriceps and sartorius) b) adductor muscles of thigh c) gluteus maximus d) gastrocnemius and soleus muscles e) tibialis anterior and fibularis (peroneal) muscles

e) tibialis anterior and fibularis (peroneal) muscles

_____ (or motor) impulses travel from the _____ to the _____ (muscles or glands). a) Efferent, effectors, central nervous system b) Efferent, central nervous system, effectors c) Afferent, central nervous system, effectors d) Afferent, effectors, central nervous system

efferent, CNS, effectors

Select the best description of the ependymal cells: a) form myelin sheaths in the central nervous system b) help maintain the blood-brain barrier c) surround neurons in peripheral nervous system ganglia d) form lining of brain ventricles

form lining of brain ventricles

A typical reflex arc involves the following components: 1. sensory neuron 2. motor neuron 3. sensory receptor 4. integrating center 5. effector The correct order is: a) 3, 1, 4, 2, 5 b) 3, 4, 1, 2, 5 c) 3, 2, 1, 5 d) 3, 4, 2, 5

a) 3, 1, 4, 2, 5 sensory receptor, sensory neuron, integrating center, motor neuron, effector

Select the structure(s) served by the axillary nerve. a) deltoid muscle b) extensors of the wrist c) flexors of the wrist d) biceps brachii e) diaphragm

a) deltoid muscle

Select the muscle(s) served by the femoral nerve. a) extensor muscles of knee joint b) adductor muscles of thigh c) gluteus maximus d) gastrocnemius and soleus muscles e) tibialis anterior and fibularis (peroneal) muscles

a) extensor muscles of knee joint

Which of the following could serve as an effector for a somatic reflex? a) skeletal muscle. b) smooth or cardiac muscle. c) gland. d) all of these choices

a) skeletal muscle.

The sciatic nerve is composed of two nerves. One of them is the common fibular (peroneal). a) True b) False

b) False

Select the structure(s) served by the supraclavicular nerve. a) quadriceps femoris muscle b) extensors of the wrist c) flexors of the wrist d) skin of superior portion of the chest and shoulder e) diaphragm

d) skin of superior portion of the chest and shoulder

The sciatic nerve is composed of two nerves. One of them is the: a) posterior femoral cutaneous b) inferior gluteal c) pudendal d) tibia

d) tibia

A nerve is a structure that may contain: 1. axons 2. blood vessels 3. neuron cell bodies 4. connective tissue 5. myelin 6. oligodendrocytes

1. axons

The roots of which spinal nerves make up the cauda equina? 1. Thoracic 2. Lumbar 3. Sacral 4. Coccygeal

2. Lumbar 3. Sacral 4. Coccygeal

When compared to unmyelinated axons, myelinated axons: 1. are electrically insulated 2. are gray in color 3. have a faster speed of nerve impulse conduction 4. are more numerous a) 1, 2, 3, 4 b) 1, 3, 4 only c) 2, 3, 4 only d) 1, 2, 4 only

B) 1, 3 and 4 - are electrically insulated, have a faster speed of nerve impulse conduction and are more numerous

which neurogia surround neuron axons? select all that apply A) oligodendrocytes B) schwann cells C) ependymal cells D) microglial cells E) A and B

E - oligodendrocytes and schwann cells

select al of the neuroglial types of the PNS A) Schwann cells B) satellite cells C) ependymal cells D) microglial cells E) A and B

E - schwann cells and satellite cells

The white matter of the spinal cord: a) contains ascending (sensory) and descending (motor) tracts. b) is surrounded by gray matter. c) is subdivided into regions called horns. d) all of these choices

a) contains ascending (sensory) and descending (motor) tracts.

What is the best description of the dura mater? a) meninx closest to the bone of the vertebral column b) between arachnoid mater and pia mater c) between pia mater and spinal cord d) contains blood vessels that supply oxygen and nutrients to the spinal cord e) consists of collagen and elastic fiber network; has no blood vessels

a) meninx closest to the bone of the vertebral column

Which of the following are found in gray matter of nervous tissue? Select all that apply: a) neuron cell bodies b) myelinated axons c) neuroglia d) dendrites e) A, C, and D

a) neuron cell bodies c) neuroglia d) dendrites

Which type(s) of neuroglia is/are associated with myelin sheaths? Select all that apply. a) oligodendrocytes b) Schwann cells c) microglial cells d) satellite cells e) A and B

a) oligodendrocytes b) Schwann cells

Which of the following is NOT a correct description of the location of the brachial plexus? a) on the neck alongside the first four cervical vertebrae b) passes above the first rib posterior to the clavicle c) extends inferiorly and laterally on either side of the last few cervical and first thoracic vertebrae d) enters the axilla

a) on the neck alongside the firsr 4 cervical vertebrae

Which of the following contain cell bodies of interneurons? a) posterior (dorsal) gray horns b) anterior (ventral) gray horns c) posterior (dorsal) root ganglia d) all of these choices

a) posterior (dorsal) gray horns

Cerebrospinal fluid is found between two layers of the meninges, in a space called the _____. a) subarachnoid space b) subpial space c) epidural space d) subdural space

a) subarachnoid space

which nerve fibers carry impulses from sensory receptors in the hand to the CNS when you touch a hot stove? (1) Afferent (2) Efferent (3) Peripheral (a) 3 (b) 1 (c) 2 (d) 1 and 3

afferent and peripheral

_________ (or sensory) impulses travel from the _______ to the _________ a) Efferent, central nervous system, receptors b) Efferent, receptors, central nervous system c) Afferent, receptors, central nervous system d) Afferent, central nervous system, receptors

afferent, receptors, CNS

which neuroglia would be most responsible for helping to prevent pathogens and toxins from entering the brain from the blood? a) Schwann cells (neurolemmocytes) b) astrocytes c) oligodendrocytes d) ependymal cells

astrocytes

Which of the following has a branch that forms nerves serving the limbs? a) Rami communicantes b) Anterior (ventral) rami c) Posterior (dorsal) rami

b) Anterior (ventral) rami

Which connective tissue covers unmyelinated or myelinated axons? a) Endomysium b) Endoneurium c) Epineurium d) Perineurium

b) Endoneurium

The lumbar enlargement is a bulge in the spinal cord at L1-L5. a) True b) False

b) False

The thoracic enlargement is a bulge in the spinal cord containing cell bodies of motor neurons supplying the upper limb. a) True b) False

b) False

The white commissure connects the right and left halves of gray matter in the spinal cord. a) True b) False

b) False

Lateral gray horns are present in ALL segments of the _____ region of the spinal cord. a) cervical b) thoracic c) lumbar d) all of these choices

b) thoracic

Which of the following is NOT a correct description of the location of the lumbar plexus? a) lateral to the first four lumbar vertebrae b) posterior to the quadratus lumborum muscle c) between the two heads of the psoas major muscle d) None of these choices

b) posterior to the quadratus lumborum muscle

226) The conus medullaris is: a) the junction between the medulla and the spinal cord. b) the tapering end of the spinal cord inferior to the lumbar enlargement. c) the inner portion of the spinal cord, seen in cross section. d) the attachment of a spinal nerve to the spinal cord

b) the tapering end of the spinal cord inferior to the lumbar enlargement.

during a histoligical survey of nervous tissue, columnar cells with cilia and microvilli were observed under the microscope. what is most likely source of the tissue sample? a) brain ventricles b) white matter of spinal cord c) gray matter of brain d) ganglion of PNS

brain ventricles

The spinal cord is protected by which of the following? a) vertebral column b) meninges c) cerebrospinal fluid d) All of these choices

d) All of these choices

the axon hillock is part of a neuron that a) passes nerve impulses directly to another cell. b) connects the axon to the neuron cell body. c) gives rise to axon collaterals. d) stores neurotransmitters in vesicles.

connects axon to the neuron cell body

the peripheral nervous system includes: a) cranial nerves and their branches. b) spinal nerves and their branches. c) ganglia d) all of these choices

cranial nerves and their branches, spinal nerves and their branches, ganglia

Which of the following statements is FALSE for spinal nerves? a) The two largest branches of a spinal nerve are the anterior (ventral) ramus and the posterior (dorsal) ramus. b) All spinal nerves are mixed nerves. c) The outer covering of a spinal nerve is the epineurium. d) Every pair of spinal nerves exits through the intervertebral foramin above the vertebra that has the same name and number as the nerves.

d) Every pair of spinal nerves exits through the intervertebral foramin above the vertebra that has the same name and number as the nerves.

Which connective tissue covers the fascicles? a) Perimysium b) Epineurium c) Endoneurium d) Perineurium

d) Perineurium

The central canal of the spinal cord is located in the center of the: a) anterior (ventral) white commissure. b) anterior (ventral) gray horns. c) posterior (dorsal) white columns. d) gray commissure.

d) gray commissure.

From which plexus does the pudendal nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

d) sacral

From which plexus does the superior gluteal nerve arise? a) brachial b) cervical c) lumbar d) sacral e) thoracic

d) sacral

Which of the following pairs of terms is most closely matched? a) gray matter, myelinated axons of the peripheral nervous system b) white matter, neuron cell bodies in a ganglion c) gray matter, Schwann cells (neurolemmocytes) in the peripheral nervous system d) white matter, tracts in the central nervous system

d) white matter, tracts in the central nervous system

which neurogia form a single layer that possesses microvilli and cilia to circulate cerebrospinal fluid a) ependymal cells b) astrocytes c) Schwann cells d) microglia

ependymal cells

select the best description of axon terminals a) stored in synaptic vesicles b) join axon to cell body c) fine processes at the ends of an axon d) side branches along the length of an axon

fine processes at the ends of axons

select the best description of the oligodendrocytes a) form myelin sheaths in the central nervous system b) help maintain the blood-brain barrier c) form myelin sheaths in the peripheral nervous system d) surround neurons in peripheral nervous system ganglia

form myelin sheaths in the CNS

select the best description of the schwann cells a) form myelin sheaths in the central nervous system b) help maintain the blood-brain barrier c) form myelin sheaths in the peripheral nervous system d) surround cell bodies in peripheral nervous system ganglia

form myelin sheaths int he PNS

A _______ refers to a small mass of nervous tissue, consisting primarily of neuron cell bodies, outside of the brain and spinal cord a) nucleus b) nerve c) tract d) ganglion

ganglion

select the best description of astrocytes a) form myelin sheaths in the central nervous system b) help maintain the blood-brain barrier c) form myelin sheaths in the peripheral nervous system d) surround neurons in peripheral nervous system ganglia

help maintain the blood-brain barrier

A main difference between neurons (nerve cells) and neuroglia is: a) neuroglia are found only in the central nervous system. b) mature neurons do not normally divide; neuroglia do. c) neurons are more numerous than neuroglia. d) neurons are generally smaller than neuroglia

mature neurons do not normally divide; neuroglia do

this functional neuron type is structurally a multipolar neuron? a) Motor b) Sensory

motor

which of the following is accurate? a) neuroglia are smaller than neurons b) neurogia are more numerous than neurons c) neuroglia generate nerve impulses and neurons do not d) neuroglia can fill in spaces formerly occupied by neurons e) A,B, and D

neuroglia are smaller than neurons, neuroglia are more numerous than neurons, neuroglia can fil spaces formerly occupied by neurons

dendrites are processes of a neuron that: a) carry nerve impulses away from the neuron cell body. b) are usually myelinated. c) are usually longer than axons. d) none of these choices

none of the above

during a histological study of the CNS, myelin is observed surrounding the axons of the neurons. Based on the presence of the myelin, what other conclusion can be made for this specimen? a) oligodendrocytes are present b) Schwann cells are present c) Microglial microglial cells are present d) ependymal cells are present

oligodendrocytes are present

Both types of neuroglia that produce and maintain a myelin sheath in nervous tissue are abundant in adults. Which of the following accurately describes how they differ? Select all that apply. a) one oligodendrocyte can associate with multiple axons whereas multiple Schwann cells associate with a single axon b) oligodendrocytes are only in CNS whereas Schwann cells are only in PNS c) oligodendrocytes are found exclusively in gray matter whereas Schwann cells are found exclusively in white matter d) oligodendrocytes produce cerebrospinal fluid and myelin whereas Schwann cells can only produce myelin e) A and B

one oligodendrocyte can associate with multiple axons whereas multiple Schwann cells associate with a single axon and oligodendrocytes are only in CNS whereas Schwann cells are only in PNS

select the best description of the microgia a) help maintain the blood-brain barrier b) phagocytes of the central nervous system c) phagocytes of the peripheral nervous system d) form lining of brain ventricles

phagocytes of the CNS

at a synapse between the axon of one neuron and the dendrite of another neuron, the axon would be part of a ____________ neuron; the dendrite would be part of a ___________ neuron. a) presynaptic, postsynaptic b) visceral, somatic c) postsynaptic, presynaptic d) somatic, visceral

presynaptic; postsynaptic

select the best description of Nissl bodies: a) form(s) part of the cytoskeleton b) rough endoplasmic reticulum c) accumulate as yellow-brown granules as the cell ages d) usually short and branched

rough endoplasmic reticulum

which neuroglia are thin and regulate the exchange of materials between the intersitial fluids and neuron cell bodies? a) satellite cells b) ependymal cells c) microglial cells d) oligodendrocytes

satellite cells

which of the following neuroglia would be found in the pNS? a) satellite cells b) astrocytes c) oligodendrocytes d) microglia

satellite cells

which of the following are types of glia in the PNS? a) Satellite cells and Schwann cells b) Oligodendrocytes and microglia c) Oligodendrocytes and satellite cells d) Microglia and Schwann cells

satellite cells and schwann cells

which neuroglia are located exclusively in the PNS? a) schwann cells b) satellite cells c) microglia d) astrocytes e) A and B

schwann cells and satellite cells

Which of the following convey information from the CNS to skeletal muscles only? a) sympathetic motor neurons b) parasympathetic motor neurons c) somatic motor neurons d) afferent motor neurons

somatic motor neurons

select the best description of neurotransmitter molecules: a) stored in synaptic vesicles b) accumulate as yellow-brown granules as the cell ages c) fine processes at the ends of axons d) usually short and branched

stored in a synaptic vesicles

select the best description of the satellite cells a) form myelin sheaths in the central nervous system b) help maintain the blood-brain barrier c) surround cell bodies in peripheral nervous system ganglia d) form lining of brain ventricles

surround cell bodies in PNS

which structure of the neuron is included in the neuromuscular junction? a) the axon terminal b) the axon hillock c) the cell body (perikaryon) d) the dendrites

the axon terminal

which of the following statements is false regarding oligodendrocytes? a) they are smaller than astrocytes b) they form myein sheaths around CNS axons c) they line the fluid-filled ventricle of the brain d) they are not as numerous as astrocytes

they line the fluid-filled ventricles of the brain

which of the following correctly describes dendrites? a) They are found only in the CNS. b) They generate the axon potential. c) They are found only in the PNS. d) They receive information from receptors or other neurons.

they receive information from receptors or other neurons

the following are all functions of astrocytes EXCEPt: a) they help maintain the blood-brain barrier b) they synthesize neurotransmitters c) they participate in brain development d) they help maintain proper K+ balance

they synthesize neurotransmitters

White matter includes: a) ganglia b) a thin outer layer of most of the brain c) nuclei in the brain d) tracts in the spinal cord

tracts in the spinal cord

a synapse is a functional junction between: a) two neurons. b) a neuron and a muscle cell. c) a neuron and a glandular cell. d) all of these choices

two neurons, a neuron and a muscle cell, a neuron and a glandular cell

select the best description of dendrites a) stored in synaptic vesicles b) accumulates as yellow-brown granules as the cell ages c) usually short and branched d) usually myelinated

usually short and branched