Brainscape's Knowledge GenomeTM

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


See full index

A&P 150 > Ch 12: Spinal Cords & Nerves > Flashcards

Ch 12: Spinal Cords & Nerves Flashcards

1
Q

Spinal cord

A

-Starts below Foramen magnum

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

Cervical region

A

Cervical enlargement to extend an upper extremities
-8 CSN

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

Lumbar segment

A

Ends as adult between lumbar 1 & Lumbar 2
- 5 CSN

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

Conus medullaris

A

L 1 and L 2 form cone shape 
- 5 sacral

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

Filum terminale

A

Anchors spinal cord to coccyx

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

Cauda equina

A

Bundle of nerves extended to lower extremities 

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

Lumbosacral enlargent

A

Form nerve plexus for lower extremities

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

How many pairs of spinal nerves are there?

A

31 pairs

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

Dura matter

A

Tough outer layer of spinal cord

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

Arachnoid matter

A

Thin, wispy layer

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

Pia matter

A

Delicate layer

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

Connective tissue

A

Membrane surrounding spinal cord and brain

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

Central canal

A

Contain cerebrospinal fluid

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

Subarachnoid space

A

CSF

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

White matter (peripheral)

A

Myelinated axon

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

Gray matter (central aspect)

A

-Neuron, cell bodies
-Dendrite
-Unmyelinated axons

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

2 parts on horns

A
  • posterior: receive afferent fibers
  • anterior: project efferent fibers
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

White matter characteristics

A

-dorsal colum
-Lateral and ventral column

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

Grey matter characteristics

A

-dorsal gray hor
-Lateral grey horn (thoracic region)
-ventral horn

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

Spinal nerves traveling

A

Spinal cord —> dorsal horn (root)
(Afferent neuron)

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

Ventral roots traveling

A

Ventral roots—> away from spinal cord
(Motor &multipolar neuron)

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

Neurons traveling to spinal cord

A

Sensory receptor —> spinal cord
(Cell body& dorsal (Sens neuron)
Root)

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

Can spinal nerves carry both sensory and motor neurons

A

Yes

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

Neuro muscular process

A

Ant grey horn—>ventral root—>somatic
(Multipolar). (Parasympathetic)

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

Neuron to autonomic

A

Lateral horn—> ventral root—>autonom
(Cell body). (Sympathetic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Reflexes

A
  1. Sensory receptor.
  2. Sensory neuron.
  3. Interneuron.
  4. Motor neuron.
  5. Effector organs, skeletal muscle And contracts.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What reflects contains two neurons?

A

Simple reflects/knee-jerk reflex

28
Q

What are three motor neurons?

A

Dorsal root, interneuron, ventral root

29
Q

Monosynaptic

A

One synopsis and two neurons

30
Q

Polysynapse

A

One synapse, more than one neuron

31
Q

Different types of reflexes

A

-Stretch reflex (knee-jerk)
-Golgi tendon reflex (prevent injury)
-Withdraw reflex

32
Q

Postsynaptic refleX

A

Three neurons between sensory and interneuron
- Also between interneuron and motor neuron

33
Q

Stretch reflex

A

Monosynaptic Knee-jerk reflex

34
Q

Golgi tendon reflex

A

Weight lifter, all of a sudden dropping weight on ground

35
Q

Withdrawal reflex

A

While seated or standing

36
Q

Withdrawal reflex process

A
  1. Sensory receptors.
  2. Receptor to spinal cord.
  3. Cord to three parts of brain.
  4. Then to parietal lobe.
  5. Back to spinal cord with alpha motor neuron.
  6. Neuron sent to muscles to withdraw off limb from painful stimulus.
37
Q

Does the leg contract first then relax for painful stimulus

A

Yes

38
Q

Muscle reflects from painful stimulus

A

Relaxation of quadriceps femoris will counter act with contraction of hamstring muscle

39
Q

Standing position of painful stimulus
For leg that supports body

A

Muscle in contraction

40
Q

Standing position of painful stimulus for affected leg

A

Contract and relax

41
Q

Spinal nerve

A

Contains both motor and sensory structures classifications

42
Q

Sensory nerve

A

Pseudo unipolar

43
Q

Motor neuron

A

Multipolar neuron

44
Q

Endoneurium

A

Surrounds individual neurons

45
Q

Perineurium

A

Surrounds axon to form fascicles

46
Q

Epineurium

A

Surrounds the entire nerve

47
Q

How many pairs are in Spinal nerves and cervical region

A

Eight pairs

48
Q

How many Spinal nerves are in thoracic region

A

12 pairs

49
Q

How many Spinal nerves are in lumbar region

A

Five pairs

50
Q

Spinal nerves in sacral region

A

Five pairs

51
Q

Spinal nerves in coccygeal region

A

One pair

52
Q

What pair exits the vertebral column for the spinal nerves

A

The first pair between skull and atlas

53
Q

Cervical plexus

A

C1-C4

54
Q

Brachial plexus

A

C5-T1

55
Q

Lumbar plexus

A

L1-L4

56
Q

Sacral plexus

A

L4-S4

57
Q

Coccygeal plexus

A

S5 and coccygeal nerve

58
Q

Is there a thoracic region in the ventral rami?

A

No thoracic region is in the sympathetic nervous system

59
Q

Sympathetic chain

A
  1. Splanchnic nerve with postganglionic neuron innervate an organ.
  2. Ascend to sympathetic ganglion (pre-and post ganglion).
  3. Synapse with postganglionic neuron and exits, the gray communicans
60
Q

Sympathetic chain function

A

To increase heart rate, blood flow, cardiac output

61
Q

 Dermatome map

A

Skin are with sensory innervation by spinal nerves

62
Q

Innervates of cervical plexus

A

Superficial neck structures
C1-C4

63
Q

Ansa cervicalis

A

Loop between C1-C3

64
Q

Phrenic nerve of cervical plexus

A

Innervate diaphragm to keep body alive
- C3-C5

65
Q

Posterior chords

A

-Axillary (C5-C6)
-Radial nerve (C5-T1)

66
Q

Lateral cord

A

Musculocutaneous nerve
(has half median nerve)

A&P 150 (26 decks)

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