Describe the path of light through the eye
What will be an ideal response?
Light striking the retina to produce an image passes through the:
• Cornea
• Pupil
• Aqueous humor
• Lens
• Vitreous humor
• Retina
In order to see properly, the following must be in place:
• Coordination between external eye muscles so that both eyes move together
• Correct amount of light admitted by the pupil
• Correct focus of light on the retina by the lens
• Optic nerve transmits sensory images to the brain
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Macrophages exhibit all of the following characteristics except _____
a. they trap and degrade pathogens in secondary lymphoid organs b. they deliver co-stimulatory signals to naive T cells needed for T-cell priming c. they migrate from sites of infection to nearby secondary lymphoid organs e. they remove and degrade apoptotic lymphocytes from secondary lymphoid tissues f. they reside in both the cortex and medulla of lymph nodes.
Classifications of trauma include:
A) motor vehicle accidents. B) falls. C) burns. D) all of the above.
In the U.S., approximately how many people die participating in skiing and snowboarding each year?
A) 17 B) 40 C) 65 D) 80
Hamstring strains are slow to heal and have a high incidence of reoccurrence.
Answer the following statement true (T) or false (F)