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BSC2346 2019 January Module 8 Quiz Latest

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BSC2346 Human Anatomy and Physiology I

Module 08 Quiz

Question 1

Which two major nerves are responsible for sensory (touch) information of the hand?

Answers:            

Ulnar and Radial nerves

Radial and Medial nerves

Axillary and Ulnar nerves

 Ulnar and Medial nerves

Question 2

Which of the following choices forms the Sciatic nerve and branches into the Tibial and Common Fibular Nerves?

Answers:            

Cervical Plexus

Brachial Plexus

Lumbar Plexus

 Sacral Plexus

Question 3

Which of the following choices is an effect of the parasympathetic nervous system?

Answers:            

Increased blood flow to skeletal muscles

Increased blood pressure

Dilation of the bronchi in the lungs to increase airflow

 Stimulates elimination of wastes such as feces and urine

Question 4

Upper motor neurons are efferent neurons that originate in the cerebrum or brain stem.

Answers:            

 True

False

Question 5

A ganglia is a collection of nerve cell bodies within the peripheral nervous system.

Answers:            

 True

False

Question 6

Which of the following choices is true regarding reflexes?

Answers:            

Neural integration (processing) of all reflexes occurs in the brain

 Somatic reflexes activate skeletal muscle

The motor neuron of a reflex arc transmit afferent impulses to the spinal cord

The stretch or tendon reflexes are only present in children under 5 years of age

Question 7

Which major nerve is the largest and thickest nerve in the body and innervates a majority of the entire lower limb?

Answers:            

 Sciatic nerve

Ulnar nerve

Sacral nerve

Axillary nerve

Question 8

Which of the following choices is an effect of the sympathetic nervous system?

Answers:            

Decreased heart rate

Increased blood flow to the gastrointestinal system

 Increased blood pressure

Constriction of the pupils

Question 9

Which statement is true regarding spinal nerves?

Answers:            

The dorsal root of the spinal nerve will contain motor fibers (axons) that innervate the skeletal muscles

 All 31 spinal nerves contain thousands of individual nerve fibers (axons) carrying information to and from the spinal cord

Spinal nerves only innervate the skin, muscles and joints

Each spinal nerve is designated as a motor nerve only or a sensory nerve only

Question 10

Which of the following best describes the deep tendon reflex?

Answers:            

 Muscle contraction occurs when its tendon is stretched quickly in order to protect the muscle/tendon from tearing injury.

It’s always initiated by a painful stimulus

Causes an automatic response that withdrawals the body from a painful stimulus

It accompanies the flexor response to prevent movement.

Question 11

The sympathetic nervous system is responsible for which of the following functions?

Answers:            

 Dilating pupils

Constricting bronchioles

Decreasing blood pressure

Increasing urinary function

Question 12

Which of the following components is the first step in the reflex arc?

Answers:            

 Receptor

Sensory neuron

Integration

Effector

Question 13

A lower motor neuron only innervates skeletal muscles.

Answers:            

 True

False

Question 14

Which cranial nerve is associated with sensory information of most of the face, assists in innervating the muscles of mastication and is divided into three divisions?

Answers:            

 CN V:  Trigeminal nerve

CN XI:  Accessory nerve

CN XII:  Hypoglossal nerve

CN VII:  Facial nerve

Question 15

Which of the following cranial nerves is responsible for the sensory function of smell?

Answers:            

 CN I

CN II

CN V

CN VIII

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