5.7 Peripheral and Autonomic Nervous System Flashcards Preview

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Flashcards in 5.7 Peripheral and Autonomic Nervous System Deck (32):
1

Types of nerve fiber which is myelinated, with motor and sensory function

Type A nerve fiber

2

Type of nerve fiber which is thinly myelinated, mainly preganglionic autonomic, with some pain and temperature perception

Type B nerve fiber

3

Type of nerve fiber which is unmyelinated, with sensory functions of pain and temperature

Type C nerve fiber

4

What is the convergence of anterior and posterior nerve roots within or just proximal to the intervertebral foramen; consists of both motor and sensory nerve fibers

Spinal nerve

5

One of the two rami of a spinal nerve which is characterized to be larger, consisting mostly of motor fibers, supplying most of the body except head and back

Ventral ramus

6

One of the two rami of a spinal nerve which is characterized to be the smaller branch, carrying sensory fibers, and supplying nerve fibers to the synovial joints of the vertebral column, deep muscles of the back, and overlying skin

Posterior (dorsal) ramus

7

What is formed by sensory fibers connecting with the motor fibers via an interneuron

Reflex arc

8

Impact of lesions which is caused by disruption of sensory (afferent) neurons

Paresthesia

9

Impact of lesions which is caused by disruption of motor (efferent) neurons

Paralysis

10

Impact of lesions which is caused by disruption of spinal nerve

Both paresthesia and paralysis

11

Impact of lesions which is caused by disruption of dorsal ramus

Back paresthesia and paralysis of deep back muscles

12

Unilateral cutaneous sensory territory of a single spinal nerve

Dermatome

13

Dermatomal area of nipple, umbilicus

T4T10

14

Unilateral muscle mass innervated by a single spinal nerve

Myotome

15

___ is the mixing of nerves from different cord levels by union and division of bundles

Plexus formation

16

Cranial nerves with afferent/sensory fibers

PURELY Sensory: 1,2,8Mixed: 5,7,9,10

17

Cranial nerves with efferent/motor fibers

PURELY Motor: 3,4,6,11,12Mixed: 5,7,9,10

18

Cranial nerves carrying parasympathetic innervation

3,7,9,10

19

Disorder on this cranial nerve can cause anosmia or loss of smell

CN I: Olfactory

20

Disorder on this cranial nerve can cause anopsias or visual defects

CN II: Optic

21

Disorder on this cranial nerve can cause eye paralysis, diplopia, or ptosisControls constriction of pupils and ciliary muscles for near vision

CN III: Oculomotor

22

Only cranial nerve that arises from the dorsal side of the brain

CN IV: Trochlear

23

The biggest cranial nerve; transmits sensory information from the face and motor information to muscles of mastication

CN V: Trigeminal

24

Only cranial nerve to extend beyond head and neck

CN X: Vagus

25

Cranial nerve that innervate the intrinsic and extrinsic muscles of the tongue; for swallowing, speech, and food manipulation

CN XII: Hypoglossal

26

True or false: Somatic nerve fibers have only 1 neuron form the ventral horn cells to the effector organs and are lightly myelinated

False. Somatic nerve fibers are heavily myelinated

27

True or false: Preganglionic neurons of autonomic nerve fibers are unmyelinated with postganglionic neurons are lightly myelinated.

False. Preganglionic neurons are LIGHTLY MYELINATED. Postganglionic neurons are UNMYELINATED.

28

Location of preganglionic cell bodies of:a.) sympathetic nerve fibersb.) parasympathetic nerve fibers

sympathetic: thoracolumbarParasympathetic: craniosacral

29

Relative lengths of neurons of:a.) sympathetic nerve fibersb.) parasympathetic nerve fibers

sympathetic: short preganglionic neuron, long post ganglionic neuronparasympathetic: long preganglionic neuron, short postganglionic

30

The short preganglionic neurons of sympathetic division releases ___

acetylcholine which is excitatory (+)

31

the long postganglionic neurons of sympathetic divisions release ___

Norepinephrine and acetylcholine

32

Cranial nerve controlling the parotid gland

CN IX: Glossopharyngeal