Central Nervous System (CNS) Flashcards Preview

Neurological Pathologies (Kristy) > Central Nervous System (CNS) > Flashcards

Flashcards in Central Nervous System (CNS) Deck (17)
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1
Q

Central Nervous System (CNS)?

A

Brain & spinal cord only

2
Q

Cerebrum?

A

Outermost part of brain

Covered by cerebral cortex (grey matter)
- layers of cells

3
Q

Corpus Callosum?

A

Where axons meet & connect

4
Q

Frontal Lobe?

A

Controls thinking, planning, organizing, problem solving, short-term memory, movement

5
Q

Parietal Lobe?

A

Interprets sensory information (pain, proprioception, temperature, touch)

6
Q

Occipital Lobe?

A

Processes images from your eyes & links that information with images stored in memory

7
Q

Temporal Lobe?

A

Processes information from your senses (smell, taste, sound).

Also plays a role in memory storage

8
Q

Primary Motor vs Pre-motor?

A

Primary motor senses touch, then association interprets the info.

9
Q

Hippocampus?

A

Stores memories you can pull out & use later

10
Q

Hypothalamus?

A

Emotions behaviors:

eg.)feelings of excitement or sadness

11
Q

Thalamus?

A

Gatekeeper

Relays info. as it goes up to the brain
- important for sensory information

12
Q

Brainstem?

A

Midbrain, Pons, Medulla

Highway system for sensory info. to reach Thalamus & Cerebellum, AND motor information to reach muscles via spinal cord

Controls autonomic functions (breathing, digestion, HR, BP)

13
Q

Cranial Nerves?

A

NOT part of the brain but part of the PNS!!!!
- they go off spinal cord into brain stem

12 different ones

14
Q

Cerebellum?

A

Controls Muscle posture, Balance, Coordination

Gets info. from different areas & helps to execute the motor plan

Sends feedback to motor cortex to stimulate or inhibit skeletal muscle

15
Q

Spinal cord?

A

Grey & whiter matter

Different tracts carry different info:

  • Tracts that go UP = temperature, light touch info. etc… (one tract for each)
  • Tracts that go DOWN = motor info. (descends)
16
Q

How we feel pain?

A

1) Pain starts by moving into the peripheral receptors
2) Pain receptors send info. from arm/leg to spinal nerves
3) Then spinal cord
4) Then up to brain stem to thalamus & Somatosensory cortex
5) Then pain is felt

17
Q

Reaction to pain?

A

Motor cortex gets me to move to get up, sit down, cry (from spinal to muscles)

Hippocampus banks this info.