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Exam 13: The Peripheral Nervous System and Reflex Activity

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Question 51

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Figure 13.1 Using Figure 13.1, match the following: -Damage to this nerve would cause difficulty in speech and swallowing,but no effect on visceral organs.

A) E
B) B
C) C
D) D

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Question 52

Multiple Choice

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Figure 13.3 Using Figure 13.3, match the following: -Contain autonomic nerve fibers.

A) B
B) A
C) C

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Question 53

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A patient is suffering from the inability to distinguish various types of odors.This patient may have damage to which of the following?

Mr.Smith staggered home after a long night at the local pub.While attempting to navigate the stairs,he passed out cold and lay all night with his right armpit straddling the staircase banister.When he awoke the next morning,he had a severe headache,but what bothered him more was that he had no sensation in his right arm and hand.Explain what caused this symptom in his arm.

The second cranial nerve forms a chiasma at the base of the brain for partial crossover of neural fibers.

The musculocutaneous nerve is a major nerve of the brachial plexus.

Which receptors adapt most slowly?

A patient has an injury of the spine and is now suffering from a loss of motor function in his right arm.However,he still has normal sensory function in the arm.Based on this information it is likely that the patient has nervous tissue damage located at ________.

All processing at the circuit level going up to the perceptual level must synapse in the ________.

A major nerve of the lumbar plexus is the ________.

A patient who received a blow to the side of the skull exhibits the following signs and symptoms on that side of the face: he is unable to close his eye,and the corner of his mouth droops.Which cranial nerve has been damaged?

Match the following: -Rootlets arise on the spinal cord,enter the skull through the foramen magnum and exit the skull through the jugular foramen.

Figure 13.2 Using Figure 13.2, identify the following components of the reflex arc: -Integration center.

Irritation of the phrenic nerve may cause diaphragm spasms called hiccups.

An emergency medical technician is examining a trauma victim by shining a pen light into her patient's eye.She records the reactivity of the patents pupils as they constrict when stimulated by the light.This test supports which of the following?

Reciprocal inhibition means that while one sensory nerve is stimulated,another sensory neuron for synergistic muscles in the same area is inhibited and cannot respond.

After axonal injury,regeneration in peripheral nerves is guided by ________.

Bill is a mechanic that works with vibrating tools.He also exerts force on his wrists when twisting wrenches and screws.Bill has a tingling sensation in the lateral portion of his hand.The doctor suspects carpal tunnel syndrome.Which of the following test might the doctor try on her patient?

Complicated interlacing of the ventral rami form networks called nerve plexus.The crisscrossing of the nerve fibers from the various spinal nerves is advantageous because ________.

Information regarding skeletal muscle tension is provided by ________ and muscle length by ________.