A&P Final Review Chapters 12, 13, 14

What is the gap between neurons called?

Synapse

Spinal nerves originating from this part of the spinal cord do not form plexuses.

Thoracic

Arbor Vitae is the white matter of what?

cerebellum

The main part of the brain that functions in coordinated movement, regulates posture, and balance is the:

cerebellum

What is the part of brain that acts as the "seat of intelligence"?

cerebrum

Where do you find the thalamus (the switchboard of the brain)?

diencephelon

Decussation of pyramids occurs in the:

medulla oblongata

The main part of the brain that functions as the cardiovascular center, respiratory center, and includes vomiting, sneezing, swallowing, coughing, and hiccuping is the:

medulla oblongata

The principle part of the brain responsible for "wakening" is what?

reticular activating system

What is the "emotional" system of the brain?

the limbic system

Cranial nerve (I) is called the:

trigeminal nerve

What is the resting potential of a typical neuron?

-70mV

Which of the following is NOT true concerning the spinal cord? A). Sensory neurons enter the spinal cord through the anterior roots. B). ganglia are located outside the spinal cord. C). motor neurons leave the spinal cord through anterior roots. D). the "butterfly" center consists of gray matter. E). the central canal is located in the center of the spinal cord in the gray matter.

A). Sensory neurons enter the spinal cord through anterior roots

Sensory impulses are carried to the CNS by way of________. A). efferent neurons B). associative neurons C). motor neurons D). afferent neurons E). integrative neurons

A). efferent neurons

Which of the following is NOT a function of the nervous system? A). manipulation B). sensory C). integration D). motor

A). manipulation

Which of the following is not one of these supporting, nourishing, and protecting cells of neurons? A). neurolemma B). astrocytes C). oligodendrocytes D). microglia E). apendymal cells

A). neurolemma

Which of the following motor areas is miss-matched with it's function? A). primary motor area- postcentral gyrus B). broca's speech area- left cerebral hemisphere

A). primary motor area- postcentral gyrus

What part of the neuron will have a myelin sheath around it?

Axon

Spinal nerves are NOT part of the A). ANS B). CNS C). PSN D). SNS

B). CNS

What is NOT true about the 3 extensions of the dura mater? A). falx cerebri separates the 2 cerebral hemispheres . B). the falx cerebellum separates the 2 cerebellar hemispheres . C). tentorium centrium separates the cerebrum from the cerebellum.

B). The falx cerebellum separates the 2 cerebellar hemispheres

When threshold of a neuron is reached,________ is produced. A). a summation B). an action potential C). a resting potential D). a graded potential

B). an action potential

Which of the following is not a functional class of neurons? A). sensory B). analytical C). association D). motor E). efferent

B). analytical

Which of the following is not a structural class of neurons? A). multipolar B). dipolar C). bipolar D). unipolar

B). dipolar

Which of the following is incorrect concerning lobes of the cerebrum? A). temporal lobes are located on the sides of the cerebrum B). Frontal lobe is the main site of vision

B). frontal lobe is the main sight of vision

What is NOT part of a neuron? A). axon B). nephron C). cell body D). dendrites E). axon hillock

B). nephron

The primary motor area is located at A). the central sulcus B). precentral sulcus

B). precentral gyrus

Which sensory area is miss-matched with it's function? A). primary somatosensory area-postcentral gyrus B). primary auditory area-precentral gyrus

B). primary auditory area-precentral gyrus

Which of the following is NOT true about the cerebrum? A). the cerebral cortex consists of gray matter B). the division between the right and left sides of the cerebrum is called the central sulcus C). the corpus callosum connects the right and left hemispheres of the cerebrum and allows them to communicate with each other.

B). the division between the right and left sides of the cerebrum is called the central sulcus

What is NOT part of the internal anatomy of the spinal cord? A). includes an anterior median fissure B). includes gray and white commissures. C). includes a central canal through which blood circulates to and from the spinal cord. D). includes a posterior median sulcus.

C). Includes a central canal through which blood circulates to and from the spinal cord

What is NOT a true statement about cerebrospinal fluid? A). circulates through cavities in the brain and the spinal cord and also in the subarachnoid space. B). absorbs shock and protects the brain and the spinal cord. C). is thick, white fluid. D). helps transports nutrients and wastes from the blood and the nervous tissue.

C). Is thick, white fluid

Which of the following is not a subdivision of the peripheral nervous system? A). somatic nervous system B). autonomic nervous system C). cardiac nervous system D). enteric nervous system

C). cardiac nervous system

What is not part of the nervous system? A). brain B). spinal cord C). foramina D). ganglion

C). foramina

Which of the following brain hormones induces sleep? A), acetylcholine B). serotonin C). melatonin D). adrenaline E). epinephrine

C). melatonin

When in embryonic development do the major CNS structures become identifiable? A). 8-9 wks B). 12-13 wks C). 16-17 wks D). 4-5 wks

D). 4-5 wks

Which of the following lists the parts of a reflex arc in the correct sequence? A). receptor, sensory neuron, motor neuron, association neuron, effector. B). effector, receptor, sensory neuron, motor neuron, association neuron. C). effector, sensory neuron, receptor, association neuron, motor neuron. D). receptor, sensory neuron, association neuron, motor neuron, effector.

D). Receptor, sensory neuron, association neuron, motor neuron, effector.

What is NOT true about the brain? A). the falx cerebri separates the 2 cerebral hemispheres. B). the brain receives approximately 20% of the total blood supply. C). the blood-brain barrier protects the brain from harmful substances. D). there are 3 ventricles associated with the brain. E). internal carotid and vertebral arteries carry blood to the brain and internal jugular veins return blood from the brain.

D). There are 3 ventricles associated with the brain.

Which of the following is TRUE concerning the spinal cord? A). from outside in, the meninges are pia mater, arachnoid mater, dura mater. B). there are 31 spinal nerves. C). the cauda equine are the nerves at the very tip of the vertebral column and are near the coccyx. D). the "butterfly" of the transverse section of the spinal cord consists of gray matter.

D). the spinal nerves include: cervicals(C1-C8), thoracics(T1-T12), lumbars(L1-L5).

What is the most superficial (outermost) of the spinal meninges?

Dura mater

What is NOT true concerning the spinal cord? A). it has 2 enlargements in the cervical and lumbar regions. B). the conus medullaris is the end of the spinal cord and located at about L2. C). the filum terminale is located near the coccyx D). includes posterior roots and anterior roots. E). ramis are located closer to the spinal cord than roots.

E). Ramis are located closer to the spinal cord than roots

Which of the following is not a part of the nervous system? A). cranial nerves B). spinal nerves C). enteric plexuses D). ganglia E). acetabulum

E). acetabulum

Which is the TRUEST statement about the ventricles? A). ventricles are CSF-filled cavities within the brain. B). lateral ventricles are found in the cerebral hemispheres C). the 3rd ventricle is found in the diencephalon D). the cerebral aqueduct is found in the midbrain and connects the 3rd and 4th ventricles E). All of the above

E). all of the above

What is NOT a major part of the brain? A). brain stem B). cerebrum C). cerebellum D). diencephalon E). parietal

E). parietal

The ability to respond to stimulus and convert it into an action potential is

Electrical excitability

The cells that support, nourish, and protect neurons are called?

Neuroglia

What is the gap between neurons filled with when a nerve impulse moves from one neuron to another?

Neurotransmitter