Brainscape's Knowledge GenomeTM

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


See full index

Principles > Anatomy - Nervous System > Flashcards

Anatomy - Nervous System Flashcards

1
Q

CNS components

A

Brain

Spinal Cord

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

PNS components

A

Spinal nerves
Cranial nerves
Autonomic nerves
(All nerve tissue that is not CNS)

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

Neurone components

A

Dendrites, body, axon of nerve fibre and myelin sheath

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

Ganglion

A

Collection of nerve cell bodies (PNS)

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

Nerve

A

Bundle of axons (PNS)

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

CN I

A

Olofactory Nerve
Sensory
Cribiform Plate of the Ethmoid Bone

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

CN II

A

Optic Nerve
Sensory
Optic Canal

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

CN III

A

Oculomotor Nerve
Motor
Superior Orbital Fissure

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

CN IV

A

Trochlear Nerve
Motor
Superior Orbital Fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

CN V (1, 2 and 3)

A 
Trigeminal Nerve
Both sensory and motor 
CNV1 = Superior Orbital Fissure
CNV2 = Foramen Rotundum
CNV3 = Foramen Ovale
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

CN VI

A

Abducent Nerve
Motor
Superior Orbital Fissure

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

CN VII

A

Facial Nerve
Both sensory and motor
Internal Acoustic Meatus

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

CN VIII

A

Vestibulcochlear Nerve
Sensory
Internal Acoustic Meatus

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

CN IX

A

Glossopharyngeal Nerve
Both sensory and motor
Jugular Foramen

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

CN X

A

Vagus Nerve
Both sensory and motor
Jugular Foramen

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

CN XI

A

Spinal Accessory Nerve
Motor
Jugular Foramen

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

CN XII

A

Hypoglossal Nerve
Motor
Hypoglossal Canal

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

Which part of the floor of the cranial cavity does the spinal cord pass through?

A

Foramen Magnum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

At which level does the spinal cord end?

A

L1/L2 disc level (conus medullaris)

20
Q

Cervical Spinal Nerves

A

C1-C8

21
Q

Thoracic Spinal Nerves

A

T1-T12

22
Q

Lumbar Spinal Nerves

A

L1-L5

23
Q

Sacral Spinal Nerves

A

S1-S5

24
Q

Coccygeal Spinal Nerves

A

Co

25
Q

Vertebral Column =

A 
7 cervical vertebrae
12 thoracic vertebrae
5 lumbar vertebrae
5 sacral vertebrae (fused)
4 coccygeal vertebrae (fused)
26
Q

Naming spinal nerves

A

Named according to vertebrae above (except for cervical nerves, which are named for vertebrae below)

27
Q

Spinal Nerve anatomy

A

Located within the intervertebral foramina.
Connect to soma via rami.
Connect to spinal cord via roots and rootlets.

28
Q

T4 dermatome

A

Male Nipple

29
Q

T10 dermatome

A

Umbilicus

30
Q

Cervical plexus

A

C1-C4 anterior rami

Posterior scalp, neck wall, diaphragm

31
Q

Brachial plexus

A

C5-T1 anterior rami

Upper limb

32
Q

Lumbar plexus

A

L1-L4 anterior rami

Lower limb

33
Q

Sacral Plexus

A

L5-S4 anterior rami

Lower limb, gluteal region, perineum

34
Q

Sympathetic outflow exits spinal cord at…?

A

T1-L2

35
Q

Parasympathetic outflow exits at…?

A

CN III, VII, IX & X

Sacral spinal nerves

36
Q

Subdivisions of Nervous System

A 
Somatic = Soma and external environment 
Autonomic = Visceral motor system (organs) and internal environment
37
Q

Define efferent and afferent

A 
Efferent = Motor.  Brain to body 
Afferent = Sensory.  Body to brain
38
Q

Sensory innervation

A

Soma = Somatic sensory
Organs = Visceral afferent
Special sense organs = Special sensory

39
Q

Motor innervation

A

Soma = Somatic motor
Organs = Sympathetic and parasympathetic
Special sense organs = Sympathetic and parasympathetic

40
Q

Somatic Sensation

A

Somatic sensory mechanoreceptors stimulated
APs conduct along axons to anterior ramus, dorsal root ganglion, POSTERIOR roots and rootlets and arrive at posterior horn.
APs synapse, cross over midline and ascend to the brain

41
Q

Motor Innervation

A

Somatic motor axons cross brainstem and descend to anterior horn
APs conducted along axons within ANTERIOR rootlets, roots then into spinal nerves
APs travel along nerves and synapse onto skeletal muscle

42
Q

Spinal reflexes

A

Sensation signal > Axon > Spinal nerve > Posterior roots > Posterior rootlets > Synapse across grey matter > Motor signal > Anterior rootlets > Anterior roots > Spinal nerve > Axon > Reflex reaction

43
Q

Motor Pathology

A

Upper motor neurone lesion =
Opposite side from movement
Lower motor neurone lesion =
Same side as movement

44
Q

Define paralysis

A

A muscle without a functioning lower motor neurone. the muscle cannot contract. The muscle would have decreased tone

45
Q

Define spasticity

A

A muscle with an intact and functioning lower motor neurone. Descending controls of the brain do not work. Muscle would have increased tone

46
Q

Sympathetic Division of ANS

A

Supplies: internal organs, body wall organs and arterioles.
Fight or flight

47
Q

Parasympathetic Division of ANS

A

Supply internal organs ONLY

Rest and digest

Principles (13 decks)

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