FREE AND STUDY GAMES ABOUT ANATOMY CH. 14 EXAM

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FREE AND STUDY GAMES ABOUT ANATOMY CH. 14 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -59 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: There are __ pairs of thoracic spinal nerves and __ thoracic vertebrae. The sacrum is formed from __ fused sacral vertebrae, and there are __ pairs of sacral spinal nerves.

Answer:

12, 12, 5, 5

Question 2: Awareness of the stimulus occurs after the __ action has been completed, in time to correct or avoid a potentially dangerous situation.

Answer:

reflex Question 3: If a person experiences numbness along the medial side of the arm and forearm, which spinal nerve may be damaged?

Answer:

C8

Question 4: The spinal cord in an adult is __ than the vertebral canal that houses it.

Answer:

shorter Question 5: The axillary nerve emerges from the posterior cord of the brachial plexus and innervates both the __ and __ muscles.

Answer:

deltoid, teres minor Question 6: A typical spinal nerve has four main branches after it emerges from the spinal

column: the __, __, and two __.

Answer:

anterior ramus, posterior ramus, rami communicantes Question 7: Rhythmic oscillations between flexion and extension when the muscle reflex is tested is called __.

Answer:

clonus Question 8: The Golgi tendon reflex is a __ reflex that prevents skeletal muscles from tensing excessively.

Answer:

polysnyaptic Question 9: Spinal nerves are identified by first letter of the __ __ part to which they attach combined with a __.

Answer:

spinal cord, number

Question 10: Elevates testis.

Answer:

cremasteric reflex

Question 11: Deep to the subarachnoid space, is a delicate, innermost meningeal layer composed of elastic and collagen fibers. This layer is known as the __ __.

Answer:

pia mater

Question 12: Flexes elbow.

Answer:

biceps reflex

Question 13: A spinal nerve contains __ and __ axons.

Answer:

motor and sensory Question 14: Each terminal branch of a plexus contains axons from __ __ spinal nerves.

Answer:

several different

Question 15: Extends elbow.

Answer:

triceps reflex Question 16: Spinal nerve T12 is called a subcostal nerve because it arises __ to the ribs.

Answer:

below Question 17: The radial nerve innervates the forearm __ and the posterior forearm muscles.

Answer:

extensors Question 18: The posterior division nerves of the sacral plexus tend to innervate muscles that __ part of the __ limb.

Answer:

extend, lower

Question 19: A reflex arc always begins at a receptor site in the __, communicates with the __, and ends at a peripheral effector, such as a muscle or gland cell.

Answer:

PNS, CNS

Question 20: The spinal nerves connect the central nervous system to __, __, and receptors.

Answer:

muscles, glands Question 21: Deep to the arachnoid mater is the __ space, which is a real space filled with __ fluid.

Answer:

subarachnoid, cerebrospinal Question 22: The lateral cord of the brachial plexus is lateral to the axillary artery and is formed from the __ divisions of the superior and middle trunks; thus it contains portions of nerves __.

Answer:

anterior, C5-C7 Question 23: The tibial nerve is formed from the __ divisions of the sciatic nerve.

Answer:

anterior Question 24: A withdrawal (flexor) reflex is a __ reflex arc that is initiated by a painful stimulus, such as touching something very hot.

Answer:

polysynaptic

Question 25: The two main branches off a spinal nerve are __ and __ rami.

Answer:

posterior and anterior

Question 26: Extends knee.

Answer:

patellar reflex