"Complement" refers to a group of

A.  white blood cells.
B.  antibodies.
C.  plasma proteins.
D.  molecules on the surface of pathogenic microbes.


C

Anatomy & Physiology

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Which of the following organs secretes glucagon?

a. liver b. anteror pituitary c. posterior pituitary d. adrenal gland e. pancreas

Anatomy & Physiology

Which of the following explains the neural mechanism of an erection?

A. It is an autonomic reflex mediated predominantly by parasympathetic nerve fibers. B. It is a somatic reflex mediated predominantly by parasympathetic nerve fibers. C. It is an autonomic reflex mediated predominantly by sympathetic nerve fibers. D. It is a somatic reflex mediated predominantly by sympathetic nerve fibers. E. It is an exclusively voluntary action mediated by the cerebral cortex.

Anatomy & Physiology

Which of the following blood vessel is used to distribute oxygenated blood to the myocardium?

a) Coronary artery b) Coronary vein c) Coronary sinus d) Vena cava e) Myocardial vein

Anatomy & Physiology

Which center is located in the pons?

A) inspiratory center B) pacemaker neuron center C) pontine respirator group (PRG) D) expiratory center

Anatomy & Physiology