Biological Stuff

Question 1

Cornea

Answer 1

tough transparent tissue

Question 2

Pupil

Answer 2

opening in the centre of the iris, expand or constrict to regulate the amount of light entering

Question 3

Iris

Answer 3

pigmented tissue that gives eye colour

Question 4

Lens

Answer 4

disc-shaped structure, assists focus

Question 5

Retina

Answer 5

transduces light into visual sensations

Question 6

Rods

Answer 6

black, white and grey receptors, sensitive to light, function best in dim light

Question 7

Cones

Answer 7

colour receptors concentrated in FOVEA, function best in bright illumination

Question 8

Bipolar Cells & Ganglion Cells

Answer 8

BIPOLAR CELLS combine info from many receptors and produce graded potentials on GANGLION CELLS which integrate information from multiple BIPOLAR CELLS

Question 9

Cerebrum

Answer 9

major structure of the forebrain

Question 10

Thalamus

Answer 10

organises inputs

Question 11

Hypothalamus

Answer 11

motivation, emotion, sexual behaviour, temperature regulation, eating, drinking, and aggression.

Question 12

Limbic System
Hippocampus
Amygdala

Answer 12

LIMBIC SYSTEM coordinates behaviours to satisfy motivation, emotion, and reward/punishment.

• HIPPOCAMPUS: form and retrieve memories.
• AMYGDALA: emotional response patterns

Question 13

Basal ganglia

Answer 13

structures involved in movement and ‘autonomic’ responses/judgements

Question 14

Cerebral cortex

Answer 14

unmyelinated cells that form the outer layer. Constructs complex voluntary movements for activities. Allows symbolic thinking

Question 15

Tectum

Answer 15

vision and hearing

Question 16

Tegmentum

Answer 16

movement and arousal

Question 17

Brainstem
Medulla
Pons

Answer 17

BRAIN STEM supports vital life functions

• MEDULLA: heart rate, respiration, vasomotor, blood pressure, vomiting. Link spine and brain
• PONS: carries nerve impulses between the higher and lower nervous system, regulates sleep

Question 18

Cerebellum

Answer 18

coordination, learning, memory