Carotene, a pigment that contributes to skin color, is acquired in the body by eating various yellow-orange vegetables.
Answer the following statement true (T) or false (F)
True
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The bronchioles are rigid, nonmuscular airways, encircled by a series of cartilaginous rings
Indicate whether the statement is true or false
Fill in the missing structures to complete the pathway of vision:
Images in light > cornea > ____________________ > lens > light rays are bent or refracted > ____________________ > rods and cones pick up stimulus > optic nerve > optic chiasma > optic tracts > occipital lobe. ? Fill in the blank(s) with correct word
Why does exposure to sunlight or sunlamps darken skin?
A) UV radiation stimulates melanocytes to produce more melanin. B) UV radiation stimulates melanocytes to produce more melatonin. C) UV radiation stimulates keratinocytes to produce more carotene. D) UV radiation stimulates keratinocytes to produce more keratin. E) UV radiation stimulates melanocytes to produce more melanin and keratinocytes to produce more keratin.
Which of the following is a synovial ball and socket joint?
A) carpometacarpal B) shoulder C) wrist D) radioulnar