Nervouse System Flashcards
Name 4 parts of the eye
Cornea,lens,iris,fovea
One function of the retina
Absorbs light and sends optic waves
One advantage of eye positioning in sheep
On side of head to see further in case of danger e.g predetors
Iris function
Control light into eye /control pupil size
Function of Lens
Focuses light
Function of retina
absorbs light and detects colour
Function of cornea
Protection
Name two parts of central nervous system
Brain and spinal cord
Two functions of the parasympathetic nervous system
Slow heart beat to calm animal and contracts bladder for urination
Two symptoms of listeriosis in ruminants
Loss of appetite and salvation
Position of owls eye
Front of face helps with better focus
State the photoreceptors that animals use to help see in the dark
Rods and cones
Name the hormone released when an animal is stressed
Adrenalin
How sense organs cause response to stimuli
Receptors detect stimuli,spinal cord processes the message and message sent to receptors
Two functions of sympathetic nervous system
Dilates pupils and relaxes bladder
