The pitch of the sound produced by the vocal folds is controlled by the
A. frequency of the vibrations.
B. amplitude of the vibrations.
C. thickness of the thyroid cartilage.
D. size of the glottis.
E. force of air moving past them.
A
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Which of the following is not a method used to weight MRI images?
A. Proton density B. T1 relaxation time C. T2 relaxation time D. None of the above
In the human body, most of the lever systems formed by muscles pulling on bones are what class?
A. 1st class B. 2nd class C. 3rd class D. no particular class is dominant
The proximal end of the radius illustrates the relationship of form and function. The cup-like surface of the radial head articulates with the rounded shape of the capitulum. This forms a joint that allows for ________
A) the rotational motion of the forearm B) the curling of the fingers C) the hinge like motion of the forearm D) the hyper extension of the forearm
Which endocrine gland is tiny, yellow-brown in color, and arranged in thick, branching cords?
A. pituitary gland B. parathyroid gland C. thyroid gland D. pineal gland