Natural killer (NK) cells ________
A) can kill cancer cells before the immune system is activated
B) are also called cytotoxic T cells
C) are cells of the adaptive immune system
D) are a type of phagocyte
A
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The principal mineralocorticoid, ________________________________________, is a hormone that regulates sodium and potassium
Fill in the blank(s) with correct word
If the connection between the SA node and AV node becomes blocked,
a. the QRS complex will be absent on an ECG b. the ventricles will beat more slowly c. the atria will beat slower d. tachycardia will occur e. both a and d will occur
What adrenal hormones increase fat and protein metabolism?
A) mineralocorticoids B) glucocorticoids C) gonadocorticoids D) epinephrine
Terms of anatomical direction are used to describe
A) one body part in relation to another. B) surgical procedures. C) a supine position. D) the nervous system. E) living matter.