Nervous System Overview Flashcards Preview

Physiology 2130 > Nervous System Overview > Flashcards

Flashcards in Nervous System Overview Deck (29):
1

What are the 2 divisions of the nervous system

CNS
PNS

2

What are the 4 views of the brain

1. Dorsal
2. Ventral
3. Lateral
4. Medial

3

What is gray matter in PNS

ganglion cells

4

What is white matter in PNS

Nerves (bundles of axons)

5

What is gray matter in CNS

Collections of neuron cell bodies

6

What is white matter in CNS

Tracts
-Bundles of axons that share a common origin and destination

7

What is the definition of ispsilateral

On the same side

8

What is the definition of contralateral

On the opposite side

9

Where is the anterior part of your brain

The front part

10

Where is the posterior part of the brain

Back part

11

What is the midline

The central brain axis

12

What is the medial part of the brain

Towards the middle or midline

13

What are the 3 planes of the brain

1. Sagittal
2. Horizontal
3. Coronal

14

What are the major parts of the CNS

1. Cerebrum
2. Cerebellum
3. Brain Stem
4. Spinal cord

15

What are the 3 major division of the brain

1. Forebrain
2. Midbrain
3. Hindbrain

16

What is a gyrus

Brain "Peaks"

17

What is a Sulcus

Brain "valleys"

18

How many segments does the spinal cord have

31
-each segment has a dorsal and a ventral root

19

What are the 5 regions of the spinal cord

1. Cervical
2. Thoracic
3. Lumbar
4. Sacral
5. Coccygeal

20

When a spinal cord segment receives sensory input and supplies motor input to a similar region, what is this skin region called

Dermatone

21

What is the PNS made up of

The somatic System (voluntary system)

The Visceral System (autonomic system; liquids)

22

What are the 2 types of neurons that the spinal cord carries

Afferent-carrying info to a place, bringing in sensory info

Efferent-carrying info from a place, taking motor info

23

Why aren't there dermatones on the face?

There are 12 separate segments for the face and the nerves come directly off the brain

24

How many meninges are there?

1. Dura Mater
2. Arachnoid
3. Pia Mater

25

What is CSF produced by?

choroid plexus (found within the ventricular system in the brain)

26

What are spaces within the brain the contain CSF called?

Ventricles

27

How much CSF do your ventricles hold

150ml
-can produce 500ml per day

28

What is the function of verticals and associated canals

More you CSF within the brain and transport out to subarachnoid space

29

What are the 4 lobes of the brain

1. Frontal
2. Occipital
3. Parietal
4. Temporal