Lecture Exam 4

Navigation » List of Schools » Prince George Community College » Biology » Bio 2050 – Anatomy and Physiology » Fall 2022 » Lecture Exam 4

Need help with your exam preparation?

Existing Quiz Clients Login here

Below are the questions for the exam with the choices of answers:

Try The Exam

Question #1

Sweat glands and arrector pili muscles are controlled

A by both the sympathetic and parasympathetic nervous systems.

B only by the parasympathetic nervous system.

C only by the sympathetic nervous system.

D by both the autonomic and somatic nervous systems.

Question #2

Postganglionic axons from the celiac ganglion innervate the

A spleen.

B stomach.

C liver.

D All of the choices are correct.

E gallbladder.

Question #3

Specific prevertebral ganglia are named after the

A vertebra from under which the preganglionic axon travels.

B early anatomist who discovered and described them.

C major abdominal arteries around which they are found.

D effector organ stimulated by the postganglionic axon.

E distance from the corresponding parasympathetic ganglion.

Question #4

A structure that is said to resemble a pearl necklace is a

A parasympathetic trunk.

B splanchnic ganglion.

C sympathetic trunk.

D parasympathetic ganglion.

Question #5

The ANS uses pathways that include two-neuron chains to innervate its effector organs.

A False

B True

Question #6

Dual innervation means that an individual effector

A receives input from both the sympathetic and the parasympathetic nervous systems.

B may be excited or inhibited by a single division of the autonomic nervous system.

C receives two autonomic axons on each smooth muscle cell.

D receives input from both the somatic and the autonomic nervous systems.

Question #7

The micturition reflex results in

A a decrease in blood pressure due to a slowing of heart rate.

B vigorous contraction of the smooth muscle of the large intestine and relaxation of anal sphincters.

C retention of urine and feces by relaxing some muscles and contracting others.

D contraction of smooth muscle in the bladder and relaxation of urinary sphincters.

Question #8

Parasympathetic activity is responsible for increased smooth muscle motility and secretory activity in digestive tract organs.

A False

B True

Question #9

Which autonomic plexus consists of postganglionic sympathetic axons that come off the cervical and thoracic sympathetic trunk ganglia, as well as preganglionic axons from the vagus nerve?

A Abdominal aortic plexus

B Esophageal plexus

C Pulmonary plexus

D Hypogastric plexus

E Cardiac plexus

Question #10

Paravertebral and prevertebral ganglia are part of the parasympathetic branch of the ANS.

A False

B True

Question #11

The sympathetic division of the ANS has

A long postganglionic axons.

B preganglionic neuron cell bodies in the T1–L2 regions of the spinal cord.

C norepinephrine as neurotransmitter.

D All of the choices are correct.

Question #12

The autonomic nervous system may receive input from visceral sensory neurons.

A False

B True

Question #13

Which system contains short preganglionic axons that branch extensively?

A Parasympathetic nervous system

B Sympathetic nervous system

C Somatic nervous system

Question #14

Which division functions to conserve energy and replenish the supply of nutrients?

A Parasympathetic

B Sympathetic

C Somatic

Question #15

The arrector pili muscles receive their sympathetic innervation via the

A splanchnic nerve pathway.

B None of the choices is correct.

C adrenal medulla pathway.

D spinal nerve pathway.

E postganglionic sympathetic nerve pathway.

Question #16

The two divisions of the autonomic nervous system

A use preganglionic and postganglionic neurons to innervate skeletal muscle.

B contain autonomic ganglia to house ganglionic neurons.

C are composed of PNS structures only.

D are voluntary.

E function only during sleep.

Question #17

The glossopharyngeal nerve innervates the

A parotid salivary gland.

B lacrimal gland.

C large intestine.

D sublingual salivary gland.

E ciliary muscle.

Question #18

Autonomic tone allows for a single division of the autonomic nervous system to control an organ by changing that division’s activity levels up or down from baseline.

A False

B True

Question #19

Muscarinic receptors are proteins that bind the neurotransmitter

A norepinephrine.

B acetylcholine.

C epinephrine.

Question #20

Postganglionic sympathetic axons are carried from the sympathetic trunk to the spinal nerve by the

A superior cervical ganglion.

B splanchnic nerves.

C pterygopalatine ganglion.

D white rami communicantes.

E gray rami communicantes.

Question #21

Which is not an effector innervated by the autonomic nervous system?

A Smooth muscle

B Glands

C Skeletal muscle

D Cardiac muscle

Question #22

Gray rami from the sympathetic trunk connect to

A all spinal nerves.

B the cranial nerves.

C alternating spinal nerves.

D the sympathetic trunk

Question #23

Postganglionic axons of the parasympathetic branch of the ANS cause increased secretion by the lacrimal (tear) glands.

A True

B False

Question #24

The sympathetic trunks are located

A in the craniosacral regions.

B lateral to prevertebral ganglia.

C superior to the brachial plexus.

D immediately lateral to the vertebral column.

E inferior to the sacral plexus.

Question #25

The superior mesenteric ganglion of the sympathetic branch of the ANS is adjacent to the origin of the superior mesenteric artery.

A True

B False

Question #26

The simple knee-jerk reflex is an example of a(n) _____ reflex.

A monosynaptic

B multisynaptic

C crossed-extensor

D ipsilateral

E contralateral

Question #27

Nerve plexuses are networks of interweaving posterior rami of spinal nerves.

A True

B False

Question #28

The direct motor pathway originates in the

A vestibular nuclei of the brainstem.

B reticular formation of the brainstem.

C superior colliculus of the midbrain.

D motor cortex of the cerebral cortex.

Question #29

A reflex arc in which both the receptor and the effector organs of the reflex are on the same side of the spinal cord is

A monosynaptic.

B ipsilateral.

C polysynaptic.

D contralateral.

Question #30

Sensory impulses traveling through the posterior root will reach the _______ upon entering the spinal cord.

A anterior horn

B central commissure

C posterior horn

D posterior root ganglion

Question #31

Information about temperature, proprioception, and pressure from skin, joints, and muscles is conveyed by

A somatosensory pathways.

B somatomotor pathways.

C viscerosensory pathways.

D visceromotor pathways.

Question #32

The cell bodies of lower motor neurons are housed in the posterior horns of the spinal cord.

A True

B False

Question #33

This nerve helps to plant the foot and receives sensory signals from the skin of the sole.

A Deep fibular nerve

B Tibial nerve

C Genitofemoral nerve

D Femoral nerve

E Obturator nerve

Question #34

The obturator nerve innervates muscles of the lateral thigh.

A False

B True

Question #35

Motor pathways are _________ tracts that control _________.

A ascending; affectors

B ascending; effectors

C descending; affectors

D descending; effectors

Question #36

Which accurately describes sensory and motor pathways?

A Both sensory and motor pathways terminate in the brain.

B Sensory pathways terminate in the brain, and motor pathways terminate at effectors.

C Both sensory and motor pathways terminate in the PNS.

D Sensory pathways terminate at effectors and motor pathways terminate in the brain.

Question #37

The subdural space is the region between the arachnoid mater and the dura mater.

A False

B True

Question #38

Because most pathways decussate, each side of the brain processes information from the _________ side of the body.

A contralateral

B ipsilateral

Question #39

What is the thin strand of pia mater that helps to anchor the spinal cord to the coccyx?

A Cervical enlargement

B Filum terminale

C Terminus coccyx

D Conus medullaris

E Coccygeal tendon

Question #40

Stepping on a piece of glass would most likely invoke a _____ reflex.

A tendon

B pain

C stretch

D withdrawal

E motor

Question #41

The fasciculus cuneatus is part of the

A spinocerebellar pathway.

B posterior funiculus–medial lemniscal pathway.

C lateral spinothalamic tract.

D fasciculus gracilis.

E anterolateral pathway.

Question #42

In the brain, the outer cerebral cortex consists of gray matter, but in the spinal cord, gray matter is confined to the innermost regions.

A False

B True

Question #43

In both the anterolateral pathway and the posterior funiculus–medial lemniscal pathway, the axons of the ________ neurons decussate in the CNS.

A quaternary

B tertiary

C primary

D secondary

Question #44

A typical spinal cord in an adult is

A 16–18 inches long.

B 12–14 inches long.

C 8–10 inches long.

D 20–24 inches long.

E 24–26 inches long.

Question #45

The tapered, conical inferior end of the spinal cord is called the conus

A medullaris.

B caudalis.

C finalis.

D sacralis.

E equine.

Question #46

The large section of spinal white matter that is found between the posterior gray horns is known as the posterior

A commissure.

B decussation.

C funiculus.

D peduncle.

Question #47

The nerve that innervates the deltoid muscle and receives sensory input from the superolateral lateral arm is the

B radial nerve.

C median nerve.

D axillary nerve.

E ulnar nerve.

F musculocutaneous nerve.

Question #48

The lumbar region of the spinal cord is closest to the lumbar vertebrae of the vertebral column.

A False

B True

Question #49

In general, nerves from the posterior division of the brachial plexus tend to innervate muscles that extend the parts of the upper limb.

A True

B False

Question #50

What is the correct order for the events that occur during a reflex?

a: Impulse travels through sensory neuron to the CNS
b: A stimulus activates a receptor
c: Information is processed by interneurons
d: Motor neuron transmits impulse to effector
e: Effector responds

A c, b, a, e, d

B a, b, c, d, e

C b, a, c, d, e

D b, d, c, a, e

E c, a, b, d, e

Try The Exam

Fresh Grad Lands Job as Real Estate Agent With Help from Professional Writers

Need help with your exam preparation?

Below are the questions for the exam with the choices of answers:

Christian S.

Tyra

Linda

Manush

We accept payment