Class II MHC molecules are found on which of the following?
A) all body cells with a nucleus
B) red blood cells
C) granulocytes and microphages
D) lymphocytes and antigen-presenting cells
E) liver cells and macrophages in the spleen
D
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If the heart receives more sympathetic stimulation than parasympathetic stimulation, the heart will
A. contract with less force but at a faster rate. B. decrease both its rate and force of contraction. C. decrease rate, but increase force of contraction. D. increase its rate and force of contraction. E. contract with greater force but at a slower rate.
The ability to distinguish between two objects located close to each other is called ________
A) field of view B) resolution C) total magnification D) depth of field
What is the lymphatic function of the white pulp of the spleen?
a. phagocytosis of abnormal cell components b. release of splenic hormones into lymphatic vessels c. to degrade foreign proteins and toxins released by bacteria d. initiation of immune responses by B cells and T cells
Sperms are formed in:
a. Testes b. Ovaries c. Seminiferous tubules d. Bulbourethral glands e. Rete testis f. Seminal Vesicle