Biological Stuff Flashcards

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1
Q

Cornea

A

tough transparent tissue

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2
Q

Pupil

A

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

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3
Q

Iris

A

pigmented tissue that gives eye colour

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4
Q

Lens

A

disc-shaped structure, assists focus

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5
Q

Retina

A

transduces light into visual sensations

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6
Q

Rods

A

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

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7
Q

Cones

A

colour receptors concentrated in FOVEA, function best in bright illumination

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8
Q

Bipolar Cells & Ganglion Cells

A

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

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9
Q

Cerebrum

A

major structure of the forebrain

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10
Q

Thalamus

A

organises inputs

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11
Q

Hypothalamus

A

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

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12
Q

Limbic System
Hippocampus
Amygdala

A

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

  • HIPPOCAMPUS: form and retrieve memories.
  • AMYGDALA: emotional response patterns
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13
Q

Basal ganglia

A

structures involved in movement and ‘autonomic’ responses/judgements

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14
Q

Cerebral cortex

A

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

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15
Q

Tectum

A

vision and hearing

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16
Q

Tegmentum

A

movement and arousal

17
Q

Brainstem
Medulla
Pons

A

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
18
Q

Cerebellum

A

coordination, learning, memory