Brainscape's Knowledge GenomeTM

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


See full index

Anatomy/Physiology I > Unit 3 - The PNS > Flashcards

Unit 3 - The PNS Flashcards

1
Q

Sensory neurons

A

Carries info to CNS

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

Motor neurons

A

Carries info from the CNS, to muscles

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

Mixed neuron

A

Carrying both sensory and motor information

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

How many nerves make up the cranial nerves

A

12 nerves

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

Cranial nerve I

A

Olfactory nerve is a sensory nerve involved in smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Cranial nerve II

A

Optic nerve, sensory involved in vision

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

Cranial nerve III

A

Oculomotor nerve is a motor nerve involved in movement of eye and constriction of pupil

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

Cranial nerve IV

A

Trochlear nerve that moves eye (controls extra-ocular muscles around eye)

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

Cranial nerve V

A

Trigeminal nerve is a mixed nerve (sensory and motor)

  • controls jaw
  • sends sensory info from eye and forehead
  • controls chewing
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Cranial nerve VI

A

Abducens nerve is a motor nerve that moves the eyes (around eye muscles)

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

Cranial nerve VII

A

Facial nerve, mixed

Muscle of facial expression and glands for tears and salivation, and 2/3 of tongue

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

Cranial nerve VII

A

Vestibulocochlear nerve is a sensory nerve involved in hearing and equilibrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Cranial nerve IX

A

Glossooharyngeal nerve, mixed. Swallowing and salivary glands and other 1/3 of tongue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Cranial nerve X

A

Vagus, mixed, functions of thoracic and abdominal organs. Some sensory stimuli for eardrum and internal organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Cranial nerve XI

A

Spinal accessory nerve , motor, trapezius muscles of back and neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Cranial nerve XII

A

Hypoglossal nerve motor, controls tongue muscles

17
Q

Spinal nerves

A

There are 31 and they are all mixed (sensory and motor nerves)

18
Q

Five main categories of spinal nerves

A
  • Cervical nerves (8 pairs)
  • Thoracic nerves (12 pairs)
  • Lumbar nerves (5 pairs)
  • sacral nerves (5 pairs)
  • Coccygeal nerves (1 pair)
19
Q

Cervical plexus

A

C1-C5

Contains phrenic nerve and supplies diaphragm muscle for breathing

20
Q

Brachial nerve

A

C5-T1

  • axillary (shoulder)
  • Musculocutaneous (anterior arm)
  • Radial (posterior arm)
  • median (forearm flexor)
  • Ulnar (forearm and most of hand)
21
Q

Lumbar plexus

A

L1-L4

Femoral- anterior leg muscle
Obturator- medial thigh muscle

22
Q

Sacral plexus

A

L4-S4

  • sciatic nerve, sacrial plexus and muscles and skin on posterior of leg (end of lumbar)
23
Q

Acetylcholine

A

Neurotransmitter:

  • excitatory and depolarizing neurotransmitter
  • resting and digesting
  • Parasympathetic
24
Q

Norepinephrine

A

Neurotransmitter

  • excitatory or inhibitory
  • flight or fight
  • heart rate, pupil dilation and blood pressure
  • sympathetic
25
Q

Epinephrine

A

Neurotransmitter

  • adrenaline (from adrenal gland)
  • strong emotions like fear or anger
  • reaction is also fight or flight
26
Q

Prefrontal cortex

A

Cognitive decision to move

27
Q

Premotor cortex

A

Organizes the movement

28
Q

Primary motor cortex

A

Directs the muscle to movements

29
Q

Basal nuclei

A

Fine tune movements and posture

30
Q

Cerebellum

A

Learning specialized movements that become automatic

31
Q

Lateral corticospinal tract

A

Muscle tone and skilled hand movements

32
Q

Anterior corticospinal tract

A

Muscle tone and trunk movements

33
Q

Vestibulospinal tracts

A

Balance and posture

34
Q

Tectospinal tracts

A

Reflexive head turning in response to visual and auditory stimuli

35
Q

Receptor

A

Detects the stimuli

36
Q

Sensory neuron

A

Sends information to the CNS

37
Q

Integration center

A

Within the CNS

38
Q

Motor neuron

A

Carries info to the effector

39
Q

Effector

A

Muscle or gland

Anatomy/Physiology I (11 decks)

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