Wray- Nervous

Question 1

Sodium Concentration: In & Outside of the Cell

Answer 1

Outside: High
Inside: Low

Question 2

Ion Concentration Inside & Outside of the Cell: Potassium

Answer 2

Outside: Low
Inside: High

Question 3

Neuron Charge: Before nerve impulse

Answer 3

-90 mV

Question 4

Neuron Charge: After Na+ influx

Answer 4

+30 mV

Question 5

What initiates nerve impulse/action potential

Answer 5

sodium

Question 6

Which ion returns axon to original resting membrane potential?

Answer 6

potassium

Question 7

Part of the brain that is visible

Answer 7

Cerebral Cortex

Question 8

Cerebral Cortex makes up approximately _____ % of your brain mass.

Answer 8

80%

Question 9

Ridges on the surface of the cerebral cortex

Answer 9

Gyrus (see picture)

Question 10

Deep fissures/grooves inside the brain

Answer 10

Sulcus (see picture)

Question 11

Thalamus: size, shape and location

Answer 11

• egg-shaped structure

- inner brain

Question 12

Thalamus: Function

Answer 12

• Relay station for info coming into the cerebral cortex

- Sorts, edits, and bundles information

Question 13

Thalamus: receives information from _________

Answer 13

afferent nerve impulses

Question 14

Thalamus: Also controls

Answer 14

emotions and visceral function from hypothalamus

Question 15

Hypothalamus: Main function

Answer 15

Body homeostasis

Question 16

Hypothalamus: Other functions

Answer 16

1. Control autonomic system
2. Initial physical responses to emotions: pleasure, fear, rage
3. Regulates body temperature
4. Regulates food and water intake
5. Regulate sleep-wake cycle

Question 17

Hypothalamus: Location

Answer 17

In front of thalamus

Question 18

Cerebrovascular accident = ___________

Answer 18

Stroke