ANA&PSY 2 MIDTERM P

The cranial nerves that innervate the extrinsic eye muscles are A) I,II, and III B) III, IV, and VI C) II and VI D) II, III, and IV E) III, V

B) III, IV, and VI

During repolarization of a neuron A) Sodium ions move into the cell B) Potassium ions move to the outside of the cell C) Both sodium and potassium ions move out of the cell D) Potassium ions move into the cell E) Sodium ions move out of the cell

B) Potassium ions move to the outside of the cell

Which sensation(s) does the vestibulocochlear nerve carry? A) hearing B) hearing and balance C) equilibrium D) hearing, balance, and taste E) atmospheric pressure

B) hearing and balance

The outward projections from the central gray matter of the spinal cord, seen easily in microscopic spinal cord cross sections, are called A) wings. B) horns. C) pyramids. D) fibers.

B) horns

The ________ ear collects sounds waves and transmits them to the ________ ear, which contains auditory ossicles A) inner; middle B) outer; middle C) outer; inner D) middle; inner E) superficial; deep

B) outer; middle

The corticospinal pathway begins in which area of the brain? A) somatosensory cortex B) primary motor cortex C) vestibular nuclei D) midbrain E) red nuclei

B) primary motor cortex

The eyelids are connected at the A) Lacrimal Caruncle B) Palpebral fissure C) Medial and lateral angles D) Chalazion E) Conjunctiva

C) Medial and lateral angles

Most sympathetic effector junctions release norepinephrine but a significant number release acetylcholine instead. Which of these is an example of an organ of the cholinergic type? A) the heart B) a blood vessel in the skin C) a sweat gland D) the liver E) the salivary glands

C) a sweat gland

Figure 15-2 The Corticospinal PathwayUse Figure 15-2 to answer the following questions:Identify the origin of the axon labeled "2."

Upper motor neuron

The ion that triggers the release of acetylcholine into the synaptic cleft is a. calcium. b. magnesium. c. chloride. d. potassium. e. sodium.

a. calcium.

The pituitary gland and thyroid gland are organs of the ________ system.

endocrine system

The sense of taste is also known as

gustation

cerebrospinal fluid

is secreted by ependymal cells

Which plane divides the body into right and left parts?

median plane

Arrange the spinal meninges from innermost layer to outermost layer.

pia mater, arachnoid mater, dura mater

the posterior horns of the spinal cord contain mainly?

sensory nuclei

D cells release ________, which inhibits the release of gastrin. a. pepsin b. leptin c. inhibind d.somatostatin. e. ghrelin

somatostatin

The auditory cortex is located in the

temporal lobe

The specific strip of skin that is innervated by a specific spinal nerve is called a? A) Dermatome B) Trunk C) Ramus D) ganglion E) root

A) Dermatome

Figure 14-2 Cranial NervesUse Figure 14-2 to answer the following questions:Identify the structure labeled "1." A) Optic nerve B) mammillary body C) infundibulum D) olfactory bulb E) oculomotor nerve

A) Optic nerve

Pain is to ________ as cold is to ________. A) nociceptors; thermoreceptors B) baroreceptors; chemoreceptors C) baroreceptors; nociceptors D) chemoreceptors; nociceptors E) baroreceptors; thermoreceptors

A) nociceptors; thermoreceptors

A proenzyme secreted by the pancreas is A) trypsinogen. B) amylase. C) carboxypeptidase. D) lipase. E) All of the answers are correct

A) trypsinogen

the spinal cord is part of the ________ nervous system.

central nervous system

Dual innervation refers to an organ receiving A) two nerves from the spinal cord. B) both autonomic and somatomotor nerves. C) both sympathetic and parasympathetic innervation. D) nerves from both the brain and the spinal cord. E) both sensory and motor nerves

C) both sympathetic and parasympathetic innervation.

Figure 14-1 The Circulation of Cerebrospinal FluidUse Figure 14-1 to answer the following questions:Identify the structure labeled "3." A) central canal. B) tentorium cerebelli. C) cerebral aqueduct. D) interventricular foramina. E) pontine canal.

C) cerebral aqueduct.

Figure 16-1 ANS Pathway Use Figure 16-1 to answer the following questions:Identify the round structure labeled "3." A) dorsal root ganglion B) spinal nerve C) chain ganglion D) intramural ganglion E) rami communicantes

C) chain ganglion

Visual pigments are derivatives of the compound A) retinal. B) opsin. C) rhodopsin. D) transducin. E) cGMP.

C) rhodopsin.

A neuron that receives neurotransmitters from another neuron is called: A) an oligodendrocyte B) a Schwann cell C) the postsynaptic neuron D) the presynaptic neuron

C) the postsynaptic neuron

During the cephalic phase of gastric secretion A.the stomach responds to distention. B. the intestinal reflex inhibits gastric emptying. C. increased production of gastric juice occurs. D. secretin inhibits parietal and chief cells. E. production of gastric juice slows down.

C)Increased production of gastric juice occurs

G cells of the stomach secrete A) cholecystokinin. B) secretin. C) gastrin. D) enteropeptidase. E) pepsin.

C. gastrin

Spinal nerves from the sacral region of the cord innervate the ________ muscles. A) shoulder B) intercostal C) abdominal D) leg E) facial

D) leg

Which of the following is not considered an abdominopelvic region? A) right hypochondriac B) left hypochondriac C) right inguinal region D) upper right E) left lumbar

D) upper right

The cerebellar hemispheres are separated by a band of cortex called the A) flocculonodular lobe. B) arbor vitae. C) folia. D) vermis. E) pyramid.

D) vermis.

A small, wormlike structure attached to the posteromedial surface of the cecum is the a) Haustra b) Pancreas c) Gallbladder d) Appendix e) Ileum

D. appendix

The ________ nervous system provides involuntary regulation of smooth muscle, cardiac muscle, and glandular activity. A) Peripheral B) Afferent C) somatic D) motor E) Autonomic

E) Autonomic

Use Figure 24-2 to answer the following questions: Contraction of the muscle layer labeled "9" causes the digestive tract to A) fold for increased surface area. B) secrete enzymes. C) shorten. D) dilate. E) constrict.

E. constrict

The opening in the iris through which light passes is the

Pupil

Which of the following is NOT controlled by the ANS? A) Cardiovascular system B) Digestive system C) Urinary system D) respiratory system E) Skeletal Muscle System

Skeletal Muscle System

A person who is standing facing forward with hands at the sides and palms facing forward is in the

anatomical position

Muscarinic receptors

are normally activated by acetylcholine

The sodium-potassium ion exchange pump

moves sodium and potassium opposite to the direction of their electrochemical gradients

the white matter of the spinal cord is mainly?

myelinated axons

the gray horns of the spinal cord contains mainly?

neuron cell bodies

The visual cortex is located in the

occipital lobe