Which of the following structures focuses incoming light rays onto the retina?

A) iris
B) lens
C) pupil
D) ciliary body


B) lens

Health & Biomechanics

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Treating disease with ionizing radiation is called:

A) radiotherapy. B) cobalt treatment. C) radiation therapy. D) all of the above.

Health & Biomechanics

Drug resistant tuberculosis is a serious concern among at-risk populations.

Answer the following statement true (T) or false (F)

Health & Biomechanics

If you continue to increase the firing rate (of action potentials) of a motor neuron, then all of the skeletal muscle fibers it innervates will eventually summate to reach tetanus.

Answer the following statement true (T) or false (F)

Health & Biomechanics

Walkability is most directly associated with which of the following terms?

A. elliptical trainers B. metabolic fitness C. built environments D. fitness centers

Health & Biomechanics