Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Z Old Anatomy > Peripheral Nervous System > Flashcards

Peripheral Nervous System Flashcards

1
Q

3 Components of PNS

A
  • Cranial Nerves
  • Spinal Nerves
  • Ganglia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where is gray matter in the PNS?

A

in the ganglia

(dorsal root and autonomic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where is white matter in the PNS?

A

in cranial and spinal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What makes a nerve an organ?

A

it contains different types of tissue

nervous tissue wrapped in layers of of connective tissue and containing blood vessels lined with epithelial tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Schwann cells

A
  • cells that surround PNS axons and myelinate them
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

mixed nerves

A

nerves containing both sensory and motor axons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

nerve fiber

A

a long axon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

nerve

A

a collection of nerve fibers (axons) bundled into fascicles, all surrounded by epineurium (tough fibrous CT sheath)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Cranial Nerves

A
  • 12 nerves numbered I-XII (rostral to caudal)
  • attach to brain, pass through foramina of skull and innervate head and neck structures (except vagus)
  • contain both sensory and motor nerve fibers
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which cranial nerves attach to the forebrain?

A

I (Olfactory) and II (Optic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which cranial nerves attach to the brain stem?

A

III-XII (all but optic and olfactory)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Sensory Neurons of Cranial Nerves

A
  • cell bodies within receptor organs (nose, eye, tongue)
  • cranial sensory ganglia along some cranial nerves external to brain
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Motor Neurons of Cranial Nerves

A
  • cell bodies in nuclei of brain stem
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

cranial nerve classification

A
  • Sensory
  • Motor
  • Mixed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Cranial Nerve I

A

Olfactory Nerve

  • Sensory nerve of smell
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
A

structures on inferior side of frontal lobes supported by cribriform plate of ethmoid bone which leads to nerve filaments that sense smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

bundles of axons connecting olfactory bulbs to brain

A

olfactory tracts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Cranial Nerve II

A

Optic Nerve

  • sensory nerve of vision
19
Q

crossing of highlighted structures

A

optic chiasm

  • crossing of optic nerves directly inferior to the hypothalamus
20
Q

2

A

optic tract

  • continuation of optic nerve from optic chiasm to the thalamus
21
Q

Cranial Nerve III

A

Oculomotor Nerve

  • motor neurons
  • innervates 4 extrinsic eye muscles
22
Q

Cranial Nerve IV

A

Trochlear Nerve

  • motor nerve
  • innervates one extrinsic eye muscle (superior oblique)
23
Q

Cranial Nerve V

A

Trigeminal Nerve

  • mixed nerve
  • sensory innervation to face, chewing muscles
24
Q

Cranial Nerve VI

A

Abducens Nerve

  • motor nerve
  • abducts the eyeball (via lateral rectus muscle)
25
Q

Cranial Nerve VII

A

Facial Nerve

  • mixed nerve
  • innervates facial muscles for expression
  • sensory innervation for taste
26
Q

Cranial Nerve VIII

A

Vestibulocochlear Nerve

  • sensory nerve for hearing and balance
27
Q

Cranial Nerve IX

A

Glossopharyngeal Nerve

  • mixed nerve
  • sensory innervation to tongue
  • motor innervation to pharynx
28
Q

Cranial Nerve X

A

Vagus Nerve

  • mixed nerve
  • sensory and motor innervation for pharynx, larynx and viscera
29
Q

Cranial Nerve XI

A

Accessory Nerve

  • motor nerve
  • accessory part of Vagus nerve
  • motor innervation to neck and upper back
30
Q

Cranial Nerve XII

A

Hypoglossal Nerve

  • motor nerve
  • runs inferior to tongue, innervating its muscles
31
Q

Cranial Nerve Names and #s Mnemonic

A

Oh, Oh, Oh, To Touch And Feel Very Good Velvet, HA!

  1. Olfactory
  2. Optic
  3. Oculomotor
  4. Trochlear
  5. Trigeminal
  6. Abducens
  7. Facial
  8. Vestibulocochlear
  9. Glossopharyngeal
  10. Vagus
  11. Accessory
  12. Hypoglossal
32
Q

Mnemonic for Nerve Types of Cranial Nerves I-XII

(Sensory, Motor or Both)

A

Some Say Marry Money But My Brother Says Big Brains Matter More

33
Q

Spinal Nerves

A

31 pairs attaching to SC through dorsal and ventral roots:

8 Cervical (one from above atlas vertebrae)

12 Thoracic

5 Lumbar

5 Sacral

1 Coccygeal

34
Q

which set of spinal nerves?

A

Cervical Nerves

  • 1st pair superior to atlas
  • last pair inferior to C7
35
Q

which set of spinal nerves?

A

thoracic nerves

  • 12 pairs T1-12
  • exit below vertebra of same number
36
Q

which set spinal nerves?

A

lumbar nerves

  • L1-5
  • exit below vertebra of same number
37
Q

which set of spinal nerves?

A

sacral nerves

  • S1-5
  • exit below vertebra of same number
38
Q

name of most inferior set of nerves pictured

A

coccygeal nerves

  • 1 pair named Co1
39
Q

Nerve Plexus

A
  • networks of intersecting nerves
  • originate from anterior rami of all spinal nerves but T2-T12
40
Q
A

cervical plexus

  • anterior rami of C1-4
  • innervate skin/muscles of neck and diaphragm
  • Phrenic Nerve
41
Q
A

brachial plexus

  • C5 through T1
  • innervates skin and muscles of arms
  • Axillary, Radial, Median and Ulnar Nerves
42
Q
A

lumbar plexus

  • L1 - L4
  • innervates anterior/medial thigh and skin of medial leg

Femoral and Obturator Nerves

43
Q

the grouping of nerves shown here

A

sacral plexus

  • L4, L5 and S1-S4
  • innervates most of lower limbs
  • Sciatic Nerve
44
Q

the small yellow nodules lined up parallel to the spine here

A

paravertebral ganglia

  • AKA sympathetic trunk/chain
  • on both sides of vertebral column from neck to pelvis
  • joined to ventral rami of spinal nerves by rami communicantes
  • bundles of neuron bodies of the sympathetic nervous system

Z Old Anatomy (21 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions