Brainscape's Knowledge GenomeTM

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


See full index

Anatomy Lecture Exam #3 > Spinal Cord > Flashcards

Spinal Cord Flashcards

1
Q

What is the spinal cord the link between?

A

The brain and the body

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

What are the two functions of the spinal cord?

A

Pathway for sensory and motor impulses and reflexes

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

What is a reflex?

A

The quickest reaction to a stimulant

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

What is the length of the spinal cord in cm and inches?

A

42-45 cm, and 16-18 in

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

What are the two longitudinal depressions in the spinal cord?

A

Posterior median sulcus and anterior median fissure

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

What are the five different names for parts of the spinal cord?

A

Cervical, Thoracic, Lumbar, Sacral, Coccygeal

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

What does the cervical enlargement control?

A

Motor control of upper limbs

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

What does the lumbosacral enlargement control?

A

Motor control of the lower limbs

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

What is the conus medularis?

A

Tapering inferior end of spinal cord

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

What is the caudal equina?

A

groups of axons projecting inferiorly

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

What is the film terminale?

A

Anchors conus medullar is to coccyx

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

How many pairs of spinal nerves are there?

A

31

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

How many cervical spinal nerves are there?

A

8

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

How many thoracic spinal nerves are there?

A

12

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

How many lumbar spinal nerves are there?

A

5

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

How many sacral spinal nerves are there?

A

5

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

How many coccygeal spinal nerves are there?

A

1

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

What do the spinal cord meninges do?

A

Protects and encapsulates spinal cord

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

What are the spinal cord meninges a continuation of?

A

The brain’s meninges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does the spinal dura mater not have that the cranial dura mater has?

A

Periosteal layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the three spinal cord meninges from furthest away to deepest?

A

Dura mater, arachnoid mater, pia mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the pia mater found on?

A

Spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What does the pia mater support?

A

Blood vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What are denticulate ligaments?

A

Lateral extensions that attach to dura mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the epidural space?

A

Space between vertebra and dura mater

26
Q

What is the subdural space?

A

space between dura mater and arachnoid mater

27
Q

What is the subarachnoid space?

A

Space between arachnoid mater and pia mater

28
Q

Of the three spaces, which one can potentially happen?

A

Subdural space

29
Q

What is the subarachnoid mater filled with?

A

CSF

30
Q

What is the gray matter?

A

Inner portion, butterfly shaped

31
Q

What are the 4 categories the gray matter is divided into?

A

anterior horns, lateral horns, posterior horns, gray commissures

32
Q

What kind of nuclei are the anterior horns made of?

A

Somatic motor nuclei

33
Q

What kind of nuclei are the posterior horns made of?

A

somatic sensory

34
Q

IN the posterior horn, what are the somatic sensory nuclei made of?

A

Soma of interneurons and axons of sensory neurons

35
Q

In the posterior horn, what are the visceral sensory nuclei made of?

A

Soma of interneuron and axons of sensory neurons

36
Q

What are the three regions of white matter on the spinal cord?

A

Posterior funiculus, anterior funiculus, and lateral funiculus

37
Q

What connects white matter together?

A

White commissures

38
Q

What are ascending and descending tracts made of?

A

Axons in the funiculus

39
Q

What is an ascending tract?

A

Sends sensory information to brain

40
Q

What is a descending tract?

A

Sends motor information away from the brain

41
Q

What does the anterior root contain?

A

motor axons

42
Q

What does the posterior root contain?

A

sensory axons and posterior root ganglion

43
Q

What does the posterior root ganglion contain?

A

Sensory somas

44
Q

What are the two spinal nerve branches?

A

Posterior and anterior ramus

45
Q

Which of the two spinal branches is the smaller one?

A

Posterior ramus

46
Q

What does the posterior ramus innervate?

A

The posterior trunk

47
Q

What does the anterior ramus innervate?

A

Anterior and lateral trunk, limbs

48
Q

What is a plexus?

A

network of interweaving spinal nerves

49
Q

What is the other structure on the rami communicants?

A

Sympathetic trunk ganglion

50
Q

Where are parasympathetic neurons found?

A

Brainstem and sacral region

51
Q

Where are sympathetic neurons found?

A

thoracic and lumbar region

52
Q

Where is the sympathetic trunk found?

A

Anterior to spinal nerves, lateral to spinal column

53
Q

What are sympathetic trunk ganglion?

A

Somas of sympathetic neurons

54
Q

What can postganglionic neurons do?

A

Move up/down the trunk

55
Q

What is a reflex arc?

A

Neural wiring of a single reflex

56
Q

What are the three steps of a reflex arc?

A

Receptor in PNS communicates with Cns and gets sent to a PNS receptor

57
Q

What is ipsilateral?

A

Receptor and effector are on the same side

58
Q

What is contralateral?

A

Receptor and effector are on opposite sides

59
Q

What is monosynaptic?

A

Sensory axons synapse directly with motor neurons

60
Q

What is polysynaptic?

A

Multiple synapses including interneurons

Anatomy Lecture Exam #3 (4 decks)

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