A&P Ch. 13 Peripheral Nervous System - Quiz

Which of the following lists the parts of a reflex arc in the correct order? a. receptor, effector, sensory neuron, interneuron, motor neuron b. receptor, sensory neuron, effector, interneuron, motor neuron c. receptor, interneuron, sensory neuron, motor neuron, effector d. effector, receptor, sensory neuron, interneuron, motor neuron e. receptor, sensory neuron, interneuron, motor neuron, effector

e. receptor, sensory neuron, interneuron, motor neuron, effector

Damage to the ________ nerve, which is vital for the autonomic control of visceral function, could result in death. a. hypoglossal b. facial c. abducens d. glossopharyngeal e. vagus

e. vagus

Spinal nerves from the brachial plexus innervate the a. shoulder girdle and upper limb. b. abdominal muscles. c. leg muscles. e. diaphragm. f. chest muscles.

a. shoulder girdle and upper limb.

Nerve trunks containing axons derived from several spinal nerves originate from: a. tracts. b. cranial nerves. c. lateral nerve groups. d. conjoined spinal nerves. c. plexuses.

c. plexuses

Pulling away from a painful stimulus is an example of a(n) ________ reflex. a. cross-extensor b. knee-jerk c. withdrawal d. pupillary e. ankle-jerk

c. withdrawal

There are ________ pairs of spinal nerves. a. 10 b. 8 c. 12 d. 31 e. 6

d. 31

A mixed nerve a. always originates in a plexus. b. goes to many body parts. c. carries both somatic and autonomic impulses. d. contains both sensory and motor neurons. e. originates in different areas of the brain

d. contains both sensory and motor neurons.

The phrenic nerves arise from the a. lumbar plexus. b. cervical plexus. c. brain. d. sacral plexus. e. thoracic plexus.

b. Cervical Plexus

Another name for the patellar reflex is the a. spinal short reflex. b. knee-jerk reflex. c. long spinal reflex. d. dorsiflexion reflex. e. ankle-jerk reflex.

b. knee-jerk reflex

Which nerve innervates the diaphragm? a. axillary b. musculocutaneous c. phrenic d. saphenous e. obturator

c. phrenic