Brainscape's Knowledge GenomeTM

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


See full index

KN 251 Unit 3 > Spinal Cord > Flashcards

Spinal Cord Flashcards

1
Q

The spinal cord is part of which nervous system?

A

The central nervous system

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

Nervous tissue tube is found inside the

A

Vertebral Canal

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

The vertebral canal contains bundles of fibers going to the brain, called ______ which bring information about the external environment to the brain

A

Afferent or sensory tracts

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

The vertebral canal contains bundles of fibers coming from the brain called ________ which sends messages from our brain to the rest of our body

A

Efferent or Motor Tracts

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

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

A

45 cm

17-18 inches

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

In the adult, where does the spinal cord extend to?

Note: In a fetus it extends all the way to coccyx

A

Intervertebral disc between L1 and L2

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

In the cervical region, it is a little wider than elsewhere. What is this this called?

A

Cervical Enlargement

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

Where does cervical enlargement extend to and from?

What does it form?

A

C4-T1

Brachial Plexus

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

Why is there the cervical enlargement?

A

Important for innervating upper limb

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

Another enlargement lower down on the spine

A

Lumbar enlargement

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

Where does the lumbar enlargement extend to?

A

T11-L1

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

What does the lumbar enlargement form?

A

Lumbosacral Plexus

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

What does the lumbar enlargement innervate?

A

Lower extremity

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

Pointed cone shaped end of the spinal cord at L1-2

A

Conus Medularrus

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

A collection of dorsal and ventral nerve roots at the inferior end of the spinal cord filling in the vertebral canal

A

Cauda Equina

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

The brain and spinal cord are covered by 3 layers of connective tissue called the

A

Meninges

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

The outermost meningeal covering, very thick and tough, the epidural space lies between the vertebrae and it

A

Dura Mater

18
Q

Space filled with fatty tissue that helps protect the spinal cord between vertebra and dura mater

A

Epidural Space

19
Q

A pouch inferior to the conus medullaris formed by the dura mater. It contains the cauda equina

A

Lumbar Cistern

20
Q

The middle layer of meninges that is a delicate membrane with fine branching fibers giving a spider web appearance

A

Arachnoid Mater

21
Q

Deep to membrane is subarachnoid space and contains

A

Cerebrospinal Fluid

22
Q

What does cerebrospinal fluid do?

A

Protects the spinal cord

23
Q

Cauda equina lies in cistern and is bathed in the

A

Cereobraspinal fluid

24
Q

Located between the arachnoid and the PIA, CSF is contained in this space

A

Subarachnoid Space

25
Q

The innermost layer, very adherent to spinal cord and is very thin

A

PIA Mater

26
Q

Extensions of the pia that attach the psinal cord to the arachnoid and dura; 20-22 pairs along the length of the cord.

A

Denticulate ligaments

27
Q

A thin, thread like extension of the pia mater that hold the spinal cord to the sacrum

A

Filum Terminale

28
Q

Used to obtain CSF from the lubar cistern, and important diagnostic tool for evaluating a variety of nervous system disorders (meningitis, stroke)

A

Lumbar Puncture or Spinal Tap

29
Q

The needle of a spinal tap passes between __ and ____ or ___ and ____

It penetrates the ________ between lamina to enter the spinal canal in subarachnoid space

A

L3 and L4, L4 and L5

Ligamentum Flavum

30
Q

If there is blood in CSF, it indicates that a ____ has occurred

A

stroke

31
Q

is located in lumbar cistern, it’s floating around in fluid and is therefore unlikely that a needle could hit the dorsal/ventral roots

A

Cauda Equina

32
Q

Where do the 31 pairs of spinal nerves enter from the vertebral canal?

A

Intervertebral Foramina

33
Q

8, 12, 5, 5, 1

A 
8 Cervical
12 Thoracic
5 Lumbar
5 Sacral
1 Coccygeal
34
Q

Where is C8?

A

Below C7

35
Q

A nerve that contains both afferent and efferent fibers

Formed by joining of 2 roots, dosral and ventral

A

Mixed spinal nerve

36
Q

A collection of nerve cell bodies involved in bringing sensory information to the spinal cord

A

Dorsal Root Ganglion

37
Q

Area of skin innervated by the cutaneous branch of a single spinal nerve

A

Dermatomes

38
Q

All spinal nerves except __ participate in dermatomes

Pin prick can be used to test spinal nerves

A

C1

39
Q

Which group of nerves is sensory?

Which is motor?

A

Dorsal

Ventral

40
Q

White matter contains

Grey Matter contains

A

Fibers extending down and up (sensory and motor)

Neurons involved in sensory and motor function

KN 251 Unit 3 (11 decks)

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