A primary spermatocyte matures into ________ spermatids having ________ chromosomes
A) millions of; 46
B) four; 23
C) one; 46
D) millions of; 23
E) four; 46
B
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An epithelium consisting of a single layer of cells in which all cells rest directly on the basement membrane is ______.
The extrinsic pathway of coagulation is activated by the
A) release of tissue factor by a damaged endothelium. B) activation of a proenzyme exposed to collagen. C) conversion of prothrombin to thrombin. D) sticking of platelets to damaged tissue. E) release of heparin from the liver.
Hemostatic forceps are used to ________________________________________ blood vessels
Fill in the blank(s) with correct word
What are the more than one million functional units found in each kidney called?
A. Collecting ducts B. Nephrons C. Major calyces D. Renal pyramids E. Minor calyces