Which type of cell produces and secretes antibodies?

A. Natural killer cell
B. Plasma cell
C. Memory B-lymphocyte
D. Memory T-lymphocyte
E. Cytotoxic T-lymphocyte


Answer: B

Anatomy & Physiology

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The connections shared by arteries that allow them to shunt blood from one artery to another are called ________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

According to Laplace's law, the air pressure necessary to prevent the collapse of an alveolus is directly proportional to the surface tension and inversely proportional to the alveolus's radius. Therefore, as an alveolus gets __________ during __________, there is an increased need for the actions of surfactant to prevent alveolar collapse.

A. larger; expiration B. larger; inspiration C. smaller; expiration D. smaller; inhalation

Anatomy & Physiology

During which process is exposure to teratogens most devastating for the development of the embryo's organs?

A) formation of the blastula B) cleavage C) organogenesis D) gastrulation

Anatomy & Physiology

Sandwiched between the layer of circular and longitudinal muscle in the muscularis externa is the

A) mucosa. B) submucosa. C) muscularis mucosa. D) myenteric plexus. E) submucosal neural plexus.

Anatomy & Physiology