homeostasis P2-1
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what does the hypothalamus do
controls hormones
what does the cerebellum do
controls muscular activity and balance
what does the cerebral cortex do
conscious thinking, calculations, intelligence, language
where does the pituitary gland (master) stem from
the hypothalamus
what does the sclera do
protects the eye from damage
what is the iris
the coloured part of the eye
what does the cornea do
transparent, refracts light
what does the suspensory ligaments do
holds the lens in place and help adjust its shape for focusing
what does the optic nerve do
sends processes to the brain
what does the retina do
it is a light receptor
what does the lens do?
focuses on objects
what are adaptions to dim light that we have
iris controls pupil size and increases it radial muscles contract
what happens when bright light is flashed into the eye
circular muscles contract decreases the size of the pupil to prevent damage to the delicate retinal cells at the back
what is short sightedness scientifically known as
short sightedness
what is the tough outer layer of the eye called
the sclera that helps maintain the eyes shape
how can myopia be treated
by wearing convex lenses, contact lenses or laser surgery
what is hyperopia also known as
long sightedness
what part of the eye helps to focus light onto the retina
the cornea
what is the ciliary muscles responsible for
change the shape of the lens ti focus on near or distant objects
what is the function of the retina
detects light and converts it into electrical impulses to send to the brain