_____ is responsible for immediate (type 1) hypersensitivity reactions.

a. IgA
b. IgD
c. IgE
d IgG


Answer: c. IgE

Anatomy & Physiology

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The most common lever systems in the body are those that have the applied force between the fulcrum and the load. These are called ________ levers

A) first-class B) second-class C) third-class D) fourth-class E) fifth-class

Anatomy & Physiology

What is the role of vitamin A in bone deposition?

A. It provides the raw material for calcification of the ground substance. B. It promotes the synthesis of bone matrix glycosaminoglycans (GAGs). C. It stimulates osteoblast activity. D. It promotes the cross-linking of collagen molecules. E. It is necessary for calcium absorption by the small intestine.

Anatomy & Physiology

If you desired to control the rate of respiration voluntarily, you might __________.

a. sneeze b. hold your breath c. inflict pain d. engage in an emotional experience

Anatomy & Physiology

The ________ are responsible for synthesizing most of a human body cell's ATP.

A. microfilaments B. ribosomes C. nucleoli D. lysosomes E. mitochondria

Anatomy & Physiology