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Viewing:

Chapter 13 - The Peripheral Nervous System

front 1

Art-labeling Activity: Figure 13.2

back 1

Label the perceptual level, circuit level and receptor level of the brain.

See Diagram.

front 2

Art-labeling Activity: Figure 13.4b

back 2

Label the structures of a nerve.

See Diagram

front 3

Art-labeling Activity: Figure 13.10c

back 3

Label the Distribution of nerves on the brachial plexus.

See Diagram

front 4

Art-labeling Activity: Figure 13.7

back 4

Label the Spinal Nerves

See Diagram

front 5

Art-labeling Activity: Figure 13.11b

back 5

Label the nerves on the Lumbar Plexus

See Diagram

front 6

Severe whiplash, or acceleration flexion-extension neck injury, may cause numbness, tingling, or weakness in an accident victim’s arms. Most injuries happen in the C_5 and C_6 region. Which nerve plexus would this injury most likely involve?

back 6

brachial

front 7

A Morton’s (plantar) neuroma is a foot condition due to swelling of the common plantar digital nerve. It can cause excruciating pain felt between the third and fourth metatarsal bones when walking. Which of the following would NOT be a factor responsible for this disorder?

back 7

nerve thinning

front 8

Art-labeling Activity: Figure 13.15

back 8

Label the correct order of a reflex arc.

See Diagram

front 9

Which of the receptor types contributes to the sense of touch by responding to light pressure?

back 9

E

front 10

Which type of sensory receptor allows us to feel an insect landing on our skin?

back 10

mechanoreceptor

front 11

The sensory division of the PNS is also known as the efferent division.

back 11

False

Afferent flows towards the CNS (Sensory). Efferent flows away from the CNS.

front 12

Sensory stimuli that activate receptors generate action potentials that are sent into the CNS.

back 12

False

Sensory stimuli that activate receptors generate graded potentials in the receptor cell. These graded potentials ultimately pass the message on to a sensory neuron. If the graded potential is strong enough at the axon hillock it triggers an action potential that continues on to the CNS.

front 13

__________ are receptors that can respond to painful stimuli

back 13

Nociceptors

front 14

Which of the following is NOT used to classify sensory receptors?

back 14

the number of dendritic endings present

front 15

__________ do NOT exhibit the property of adaptation.

back 15

Tonic receptors

Tonic receptors provide a sustained response with little or no adaptation. Nociceptors and most proprioceptors are tonic receptors because of the protective importance of the information.

front 16

Which connective tissue layer directly surrounds every axon in a nerve?

back 16

endoneurium

front 17

Which of the following is NOT correct concerning nerves?

back 17

Nerves are collection of axons of either sensory or motor neurons but not both.

front 18

CNS nerve fibers regenerate because of the actions of Schwann cells.

back 18

False

PNS nerve fibers regenerate because of the actions of Schwann cells, Not CNS.

front 19

Choose the FALSE statement about nerves.

back 19

Axons make up a majority of the matter in a nerve.

front 20

Which of the following cranial nerves carries only motor information?

back 20

abducens

front 21

Which cranial nerve innervates most of the visceral organs?

back 21

vagus

front 22

Which cranial nerve transmits information about audition?

back 22

vestibulocochlear

front 23

What pair is incorrect?

back 23

CN IV - sensory

front 24

Which of the following carries no sensory information?

back 24

hypoglossal nerve

front 25

Damage to the ulnar nerve could result in the inability to ______.

back 25

flex the wrist

front 26

A herniated lumbar disc could interfere with ______.

back 26

All of the listed responses are correct.

front 27

Sciatica has no direct affect on ______.

back 27

control of the adductor longus

front 28

A knee-jerk reflex that is unusually strong may be caused by ______.

back 28

transmission of excitatory signals from the brain to the neurons that form the femoral nerve

front 29

Gluteal innervation comes from which plexus?

back 29

sacral

front 30

Spinal nerves are all classified as __________.

back 30

mixed nerves.

front 31

The phrenic nerve is a branch from the __________.

back 31

cervical plexus

front 32

A dermatome represents the motor innervation of muscles in that area.

back 32

False

front 33

In carpal tunnel syndrome, the __________ is compressed.

back 33

median

front 34

Which of the following is NOT required for a reflex arc?

back 34

interneurons