The synthesis of __________ depends on the penetration of ultraviolet light through the epidermis.


A. collagen
B. keratin
C. cholesterol
D. carotene
E. vitamin D


E. vitamin D

Anatomy & Physiology

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The QRS complex of an ECG is produced by the ________.

A. depolarization of the atria B. repolarization of the atria C. depolarization of the ventricles D. repolarization of the ventricles

Anatomy & Physiology

Which of the following does not occur with aging of the urinary system?

A. Decreased GFR B. Fibrous connective tissue accumulates around the kidney capsule C. Nephrons invert D. Renal tubules become encased in fat

Anatomy & Physiology

Conscious awareness of incoming sensory information is called

A.  sensation. B.  receptor. C.  a stimulus. D.  adaptation. E.  transducer.

Anatomy & Physiology

The gnostic area is a part of the frontal lobe that integrates the learning of skilled motor activities

Indicate whether this statement is true or false.

Anatomy & Physiology