Deck 13: The Peripheral Nervous System and Reflex Activity

Question 1

Figure 13.1
Using Figure 13.1, match the following:
Damage to this nerve would cause dizziness, nausea, and loss of balance.

Answer 1

C

Question 2

Figure 13.3
Using Figure 13.3, match the following:
Amacrine cell.

Answer 2

D

Question 3

Figure 13.2
Using Figure 13.2, identify the following components of the reflex arc:
Receptor.

Answer 3

A

Question 4

Figure 13.1
Using Figure 13.1, match the following:
Involved in movement of the digestive tract.

Question 5

Figure 13.4
Using Figure 13.4, match the following:
The only tissue in the body that can be transplanted from one person to another with little or no rejection.

Question 6

Figure 13.4
Using Figure 13.4, match the following:
Holds the retina firmly against the pigmented layer.

Question 7

Figure 13.4
Using Figure 13.4, match the following:
Controls lens shape.

Question 8

Figure 13.1
Using Figure 13.1, match the following:
Damage to this nerve would keep the eye from rotating inferolaterally.

Question 9

Figure 13.3
Using Figure 13.3, match the following:
Horizontal cell.

Question 10

Figure 13.2
Using Figure 13.2, identify the following components of the reflex arc:
Effector.

Question 11

Figure 13.4
Using Figure 13.4, match the following:
Acts as a reflexively activated diaphragm to vary pupil size.

Question 12

Figure 13.3
Using Figure 13.3, match the following:
Rod.

Question 13

Figure 13.3
Using Figure 13.3, match the following:
Bipolar cells.

Question 14

Figure 13.1
Using Figure 13.1, match the following:
Innervates the superior oblique muscle.

Question 15

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

Question 16

Figure 13.2
Using Figure 13.2, identify the following components of the reflex arc:
Sensory neuron.

Question 17

Figure 13.3
Using Figure 13.3, match the following:
Ganglion cells.

Question 18

Figure 13.1
Using Figure 13.1, match the following:
Longest cranial nerve.

Question 19

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.

Question 20

Figure 13.2
Using Figure 13.2, identify the following components of the reflex arc:
Motor neuron.

Question 21

Match the following:

A) Otoliths
B) Vestibule
C) Pharyngotympanic tube
D) Tympanic membrane
Contains utricle and saccule.

Question 22

Match the following reflexes to their function:

A) Tendon
B) Flexor
C) Plantar
D) Stretch
E) Crossed-extensor
Prevents muscle overstretching and maintains muscle tone.

Question 23

Match the following:

A) Abducens
B) Olfactory
C) Vestibulocochlear
D) Vagus
E) Accessory
Serves the senses of hearing and equilibrium.

Question 24

Match the following:

A) Abducens
B) Olfactory
C) Vestibulocochlear
D) Vagus
E) Accessory
Receptors located in epithelium of the nasal cavity.

Question 25

Match the following:

A) Otoliths
B) Vestibule
C) Pharyngotympanic tube
D) Tympanic membrane
Detects linear acceleration.

Question 26

Match the following reflexes to their function:

A) Tendon
B) Flexor
C) Plantar
D) Stretch
E) Crossed-extensor
Consists of an ipsilateral withdrawal reflex and a contralateral extensor reflex; important in maintaining balance.

Question 27

Figure 13.4
Using Figure 13.4, match the following:
Fluid blockages cause glaucoma.

Question 28

Match the following:

A) Abducens
B) Olfactory
C) Vestibulocochlear
D) Vagus
E) Accessory
Formed by the union of a cranial and a spinal root.

Question 29

Match the following:

A) Lens
B) Fovea centralis
C) Aqueous humor
D) Retina
The sensory layer of the eye.

Question 30

Match the following reflexes to their function:

A) Tendon
B) Flexor
C) Plantar
D) Stretch
E) Crossed-extensor
Tests both upper and lower motor pathways. The sole of the foot is stimulated with a dull instrument.

Question 31

Match the following reflexes to their function:

A) Tendon
B) Flexor
C) Plantar
D) Stretch
E) Crossed-extensor
Produces a rapid withdrawal of the body part from a painful stimulus; ipsilateral.

Question 32

Match the following:

A) Otoliths
B) Vestibule
C) Pharyngotympanic tube
D) Tympanic membrane
Separates external acoustic meatus from the middle ear.

Question 33

Match the following:

A) Otoliths
B) Vestibule
C) Pharyngotympanic tube
D) Tympanic membrane
Connects the middle ear with the nasopharynx.

Question 34

Match the following:

A) Lens
B) Fovea centralis
C) Aqueous humor
D) Retina
Helps maintain the intraocular pressure; located in the anterior part of the eye.

Question 35

Match the following:

A) Otoliths
B) Vestibule
C) Pharyngotympanic tube
D) Tympanic membrane
Ear stones.

Question 36

Match the following:

A) Lens
B) Fovea centralis
C) Aqueous humor
D) Retina
The structure most responsible for focusing light rays that enter the eye.

Question 37

Match the following:

A) Abducens
B) Olfactory
C) Vestibulocochlear
D) Vagus
E) Accessory
Turns the eyeball laterally.

Question 38

Match the following:

A) Abducens
B) Olfactory
C) Vestibulocochlear
D) Vagus
E) Accessory
Helps to regulate blood pressure and digestion.

Question 39

Match the following:

A) Lens
B) Fovea centralis
C) Aqueous humor
D) Retina
Area of greatest visual acuity.

Question 40

Match the following reflexes to their function:

A) Tendon
B) Flexor
C) Plantar
D) Stretch
E) Crossed-extensor
Produces muscle relaxation and lengthening in response to tension; the contracting muscle relaxes as its antagonist is activated.

Question 41

Match the following:

A) Lumbar plexus
B) Brachial plexus
C) Cervical plexus
D) Sacral plexus
The obturator and femoral nerves branch from this plexus.

Question 42

Match the following:

A) Precommand level
B) Segmental level
C) Projection level
Controls the outputs of the cortex and regulates motor activity.

Question 43

Match the following:

A) Conduction deafness
B) Sensorineural deafness
C) Tinnitus
Loss of hearing resulting from prolonged exposure to high-intensity sounds.

Question 44

Match the following:

A) Vestibule
B) Tympanic membrane
C) Cochlear duct
D) Spiral organ (of Corti)
A membrane that transmits sound vibrations to the auditory ossicles.

Question 45

Match the following:

A) Conduction deafness
B) Sensorineural deafness
C) Tinnitus
Can result from impacted cerumen.

Question 46

Match the following:

A) Vestibule
B) Tympanic membrane
C) Cochlear duct
D) Spiral organ (of Corti)
Houses the spiral organ (of Corti.)

Question 47

Match the following:

A) Conduction deafness
B) Sensorineural deafness
C) Tinnitus
A possible side effect of medications such as aspirin.

Question 48

Match the following:

A) Precommand level
B) Segmental level
C) Projection level
The cerebellum and basal nuclei.

Question 49

Match the following:

A) Lumbar plexus
B) Brachial plexus
C) Cervical plexus
D) Sacral plexus
Trauma to a nerve of this plexus may cause wrist drop.

Question 50

Match the following:

A) Precommand level
B) Segmental level
C) Projection level
Intermediate relay for incoming and outgoing neurons.

Question 51

Match the following:

A) Lumbar plexus
B) Brachial plexus
C) Cervical plexus
D) Sacral plexus
The phrenic nerve branches from this plexus.

Question 52

Match the following:

A) Conduction deafness
B) Sensorineural deafness
C) Tinnitus
One of the most common results of otitis media.

Question 53

Match the following:

A) Lumbar plexus
B) Brachial plexus
C) Cervical plexus
D) Sacral plexus
Striking the "funny bone" (ulnar nerve) may cause injury to a nerve of this plexus.

Question 54

Match the following:

A) Vestibule
B) Tympanic membrane
C) Cochlear duct
D) Spiral organ (of Corti)
The receptor organ for hearing.

Question 55

Match the following:

A) Precommand level
B) Segmental level
C) Projection level
Central pattern generators.

Question 56

Match the following:

A) Precommand level
B) Segmental level
C) Projection level
The neural machinery of the spinal cord, including spinal cord circuits.

Question 57

Match the following:

A) Precommand level
B) Segmental level
C) Projection level
Includes cortical and brain stem motor areas.

Question 58

Match the following:

A) Conduction deafness
B) Sensorineural deafness
C) Tinnitus
Can result from the fusion of the auditory ossicles.

Question 59

Match the following:

A) Lumbar plexus
B) Brachial plexus
C) Cervical plexus
D) Sacral plexus
A fall or improper administration of an injection to the buttocks may injure a nerve of this plexus.

Question 60

Match the following:

A) Vestibule
B) Tympanic membrane
C) Cochlear duct
D) Spiral organ (of Corti)
The central part of the bony labyrinth.

Question 61

Dermatomes are skin segments that relate to sensory innervation regions of the spinal nerves.

Question 62

Match the following:

A) Macula
B) Crista ampullaris
C) Taste buds
Chemically sensitive cilia are found in this structure.

Question 63

Match the following:

A) Night blindness
B) Otitis media
C) Glaucoma
D) Conduction deafness
A condition that can result from a deficiency of vitamin A.

Question 64

Match the following:

A) Night blindness
B) Otitis media
C) Glaucoma
D) Conduction deafness
An inflammation of the lining of the middle ear.

Question 65

In the somatosensory system there are no third-order neurons in the cerebellum.

Question 66

Dorsal and ventral rami are similar in that they both contain sensory and motor fibers.

Question 67

Match the following:

A) Macula
B) Crista ampullaris
C) Taste buds
Hair cells receptive to changes in dynamic equilibrium are found in this structure.

Question 68

Pacinian corpuscles can be exteroceptors, interoceptors, or proprioceptor.

Question 69

Match the following:

A) Macula
B) Crista ampullaris
C) Taste buds
Chemically sensitive microvilli found in this structure.
D) Olfactory epithelium

Question 70

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

Question 71

The only cranial nerves to extend beyond the head and neck region are the vagus nerves.

Question 72

Match the following:

A) Night blindness
B) Otitis media
C) Glaucoma
D) Conduction deafness
A condition of deafness that may result from otosclerosis.

Question 73

Match the following:

A) Macula
B) Crista ampullaris
C) Taste buds
Hair cells receptive to changes in static equilibrium are found in this structure.

Question 74

The dorsal ramus consists only of motor fibers bringing information to the spinal cord.

Question 75

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

Question 76

The obturator nerve branches from the sacral plexus.

Question 77

Match the following:

A) Night blindness
B) Otitis media
C) Glaucoma
D) Conduction deafness
A condition often leading to blindness due to increased intraocular pressure.

Question 78

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

Question 79

The meningeal branch of a spinal nerve actually reenters the vertebral canal to innervate the meninges and blood vessels.

Question 80

The glossopharyngeal nerve is the only cranial nerve that contains sensory fibers.