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the layer of skin that exists only on the palms of the hand and soles of the feet
Stratum lucidum
name the three specialized cells in the epidermis
Melanocytes, Langerhans cells, Merkel cells
name the three tissues found on the dermis
collagen, elastic tissue, reticular fiber
layer that contains cells that produce pigment and protect immune system
epidermis
made up of fat, connective tissues, and larger blood vessels
subcutaneous tissue
tissue that is associated with body temperature regulation
subcutaneous tissue
refracts light as it enters the eye
cornea
alters the shape of the lens so that the eye can focus
ciliary muscle
carries impulses between the eye and the brain
optic nerve
name the two types of light receptors
rods and cones
define accommodation
accommodation is the process of changing the shape of the lens to focus on near or distant objects.
describe myopia
someone with myopia can see near objects clearly but cannot focus properly on distant objects.
what lens is used to correct myopia?
concave lens
what is hyperopia?
hyperopia can see distant objects clearly, but they cannot focus propely on near objects
what lens is used to correct hyperopia?
convex lens
part of the ear that equalizes pressure between the middle ear and the air outside.
eustachian tube
