Defending the body against bacterial infection and invasion by other foreign substances is the function of _____ blood cells.
Fill in the blank(s) with the appropriate word(s).
Ans: white
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Which part of the brain contains the epithalamus, hypothalamus, and the thalamus?
A. Medulla oblongata B. Diencephalon C. Cerebellum D. Pons E. Cerebrum
Which of the following is not true regarding the right atrioventricular valve?
A) It has 3 cusps. B) It is also called the tricuspid valve. C) It prevents backflow of blood from the right ventricle into the right atrium. D) The valve closes when the right atrium contracts. E) The cusps provide one-way flow of blood.
A skeletal muscle fiber is
A. an elongated series of muscles held together by dense connective tissue. B. a collection of several muscles bound together by a membrane. C. a skeletal muscle cell. D. found only in cardiac muscle. E. a contractile filament within the osteon of bone.
In addition to neuromodulation, another means of depressing or enhancing synaptic effectiveness is presynaptic ____________________ or ____________________
Fill in the blank(s) with correct word