Unit A ES-NS

Question 1

Central Nervous System (CNS)

Answer 1

Brain + spinal cord (Decision maker)

Question 2

Peripheral Nervous System (PNS)

Answer 2

Contains Somatic, Autonomic, Sympathetic, Parasympathetic

Question 3

Somatic

Answer 3

Conscience control

Question 4

Automatic

Answer 4

Unconscious control

Question 5

Sympathetic (list 5)

Answer 5

Increased heart rate
Increased breathing
Relaxed bladder
Dilated pupil
Blood to limb

Question 6

Parasympathetic (list 5)

Answer 6

Decreased heart rate
Decreased breathing
Constricted bladder
Constricted pupil
Blood to gut

Question 7

Rest Potential (list 5)

Answer 7

Polarized
Na+/K+ pump on
Below threshold
Negative inside
Na+ pumped out

Question 8

Action Potential (list 5)

Answer 8

Depolarized
Na+/K+ pump off
At or above threshold
Positive inside
Na+ floods in

Question 9

Receptors: osmo-chemo-baro-photo-mechano

Answer 9

Thirst-smell-touch-see-hear

Question 10

3 Jobs of Schwaan Cells

Answer 10

Develops in embryo
Continues through childhood
Peaks at adolescence

Question 11

Cerebrum (4 parts)

Answer 11

Frontal
Parietal
Occipital
Temporal

Question 12

3 Jobs of Cerebellum

Answer 12

Controls balance + posture
Controls voluntary motor coordination
Hand-eye coordination

Question 13

Corpus Callosum

Answer 13

Controls both hemispheres of brain

Question 14

4 Jobs of Cerebral Cortex

Answer 14

Peel of brain
Outermost 2-3mm of Cerebrum
Covers all 4 lobes
Highly folded grey matter increasing surface area

Question 15

4 Lobs of Brain

Answer 15

Frontal - memory
Parietal - touch
Occipital - vision
Temporal - ears

Question 16

Pons ( the bridge)

Answer 16

Connects medulla + cerebellum

Question 17

3 Jobs of Medulla Oblongata

Answer 17

Between spinal cord + brain
Controls Blood Pressure (BP)
Controls Breathing Rate (BR)

Question 18

3 Jobs of Spinal Cord

Answer 18

Body movement
Send senses to brain
Manages reflexes