Nervouse System Flashcards

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1
Q

Name 4 parts of the eye

A

Cornea,lens,iris,fovea

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2
Q

One function of the retina

A

Absorbs light and sends optic waves

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3
Q

One advantage of eye positioning in sheep

A

On side of head to see further in case of danger e.g predetors

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4
Q

Iris function

A

Control light into eye /control pupil size

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5
Q

Function of Lens

A

Focuses light

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6
Q

Function of retina

A

absorbs light and detects colour

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7
Q

Function of cornea

A

Protection

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8
Q

Name two parts of central nervous system

A

Brain and spinal cord

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9
Q

Two functions of the parasympathetic nervous system

A

Slow heart beat to calm animal and contracts bladder for urination

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10
Q

Two symptoms of listeriosis in ruminants

A

Loss of appetite and salvation

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11
Q

Position of owls eye

A

Front of face helps with better focus

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12
Q

State the photoreceptors that animals use to help see in the dark

A

Rods and cones

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13
Q

Name the hormone released when an animal is stressed

A

Adrenalin

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14
Q

How sense organs cause response to stimuli

A

Receptors detect stimuli,spinal cord processes the message and message sent to receptors

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15
Q

Two functions of sympathetic nervous system

A

Dilates pupils and relaxes bladder

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16
Q

State two types of neurons

A

Motor neutrons and sensory neurons