Central Nervous System

Question 1

CNS components

Answer 1

1. 31 pairs of spinal nerves
2. Grey and white matter
3. Controls some reflex actions (bladder emptying)

Question 2

Brain Parts

Answer 2

Hindbrain (Back)
1. Medulla Oblongata
2. Pons
3. Cerebellum

Midbrain

Forebrain (front)
1. Cerebrum
2. Thalamus
3. Hypothalamus

Question 3

Cerebrum Structure

Answer 3

1. Longitudinal fissure separates two hemispheres
2. Corpus callosum: fibres joining hemispheres
3. 4 divided lobes
4. Sulcus (grooves), Gyrus (ridges)

Question 4

Cerebrum Function

Question 5

Cerebellum Structure

Answer 5

1. Adjacent + attached to pons
2. Inner white, outer grey matter

Question 6

Cerebellum function

Answer 6

1. Coordinates contractions of skeletal muscle movement into smooth efficient action
2. Maintains posture

Question 7

Thalamus

Answer 7

Acts as a monitor and relay station to the cerebral cortex

Question 8

Hypothalamus

Answer 8

Attached to thalamus and via infundibulum has pituitary projecting from lower portion

Question 9

Pons (Varoli)

Answer 9

1. Coordinates + transmits info between cerebellum, cerebrum + cord
   2.Coordinates muscle movement on the 2 sides of the body

Question 10

Medulla Oblongata

Question 11

Meninges

Question 12

Meninges function

Question 13

Cerebrospinal Fluid (CSF)