Brain

Question 1

CNS

Answer 1

Brain and spinal cord, which act as coordinating centres

Question 2

Meninges

Answer 2

Surround the brain and act as a layer of protection. Includes the dura matter, arachnoid matter, and pia matter.

Question 3

Cerebrospinal fluid

Answer 3

Acts as a shock absorber and transport medium to relay nutrients to the brain and brings back waste to the blood. (Brain blood barrier)

Question 4

Spinal cord

Answer 4

Acts as a minor coordinating centre for the PNS through the reflex arc. It contains grey and white matter.

Question 5

Dorsal root

Answer 5

Bring information from the sensory neurons to the CNS

Question 6

Ventral Root

Answer 6

Carries motor information from the spinal cord to the effectors.

Question 7

Hindbrain

Answer 7

Medulla, Pons, Cerebellum

Question 8

Midbrain

Answer 8

4 spheres of grey matter

Question 9

Forebrain

Answer 9

Thalamus, Hypothalamus, Cerebrum

Question 10

Medulla Oblongata

Answer 10

Relay centre for ingoing and outgoing information, which acts a connection between the PNS and CNS. Controls involuntary action by acting as a coordinating centre for the ANS.

Question 11

Cerebellum

Answer 11

Controls equilibrium/balance, coordination, muscle tone. It organizes, interprets, and integrates

Question 12

Pons

Answer 12

Acts as a bridge between the midbrain and medulla

Question 13

Midbrain

Answer 13

Relay centre for some ear and eye reflexes. Allows you to concentrate on specific impulse stimuli and ignore the rest.

Question 14

Cerebrum

Answer 14

Largest part of the brain, so its is divided into the left and right hemisphere. Major coordinating centre for sensory information and associated motor actions.

Question 15

Cerebral Cortex

Answer 15

Outer layer consists of grey matter, covers red with deep folds and convolutions

Question 16

Corpus Collosum

Answer 16

Consists of white matter and connects the left and right hemispheres. It transmits impulses between hemispheres and makes connections.

Question 17

Thalamus

Answer 17

Sensory relays for impulses from the body to the cerebrum. Affects consciousness and awareness of pain.

Question 18

Hypothalamus

Answer 18

Hormonal regulation through control of the ANS, controls function of the pituitary gland.

Question 19

Olfactory bulbs

Answer 19

Located at the bottom of the temporal lobes. Associated with interpreting smell.

Question 20

Hippocampus

Answer 20

Short-term to long-term memory conversion

Question 21

Amyglada

Answer 21

Associated with emotions

Question 22

Frontal lobe

Answer 22

Thinking and movement of voluntary muscles

Question 23

Parietal lobe

Answer 23

Processing sensory input like temperature, touch, smell, pain. Emotions, interpreting speech

Question 24

Temporal lobe

Answer 24

hearing

Question 25

Occipital lobe

Answer 25

vision

Question 26

Association areas

Answer 26

Found beside the sensory areas. Major function is interpretation of sensations, redirection of impulses to the motor region for action/storage.

Question 27

Oligodendrocytes

Answer 27

Myelin in the CNS