Which of the following lymph organs has pits called crypts?
A. Spleen
B. Lymph nodes
C. Thymus
D. Bone marrow
E. Tonsils
E. Tonsils
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The following is a list of the blood vessels that carry blood to the kidney: 1. afferent arteriole 2. arcuate artery 3. interlobar artery 4. renal artery 5. glomerulus 6. cortical radiate artery 7. efferent arteriole 8. peritubular capillary The proper order in which blood passes through these vessels is
A) 4, 6, 2, 3, 1, 5, 7, 8. B) 4, 3, 2, 6, 1, 5, 7, 8. C) 4, 3, 2, 6, 7, 5, 1, 8. D) 4, 6, 2, 3, 7, 5, 1, 8. E) 4, 3, 6, 2, 1, 5, 7, 8.
Immediate hypersensitivity reactions are mediated by IgE secreted by B cells, whereas delayed hypersensitivity is mediated by T cells
Indicate whether the statement is true or false
The type of muscle fiber that is most resistant to fatigue is the ________ fiber.
A) fast B) slow C) anaerobic D) intermediate E) high-density
The larynx routes air and food into their proper channel and plays an important role in speech production
Indicate whether the statement is true or false