Urea is formed in the

Which of the following hormones increases membrane transport of amino acids into many body cells?

a. cortisol b. growth hormone c. insulin d. Both a and c e. Both b and c

The common pathway of coagulation begins with the

A) sticking of platelets to damaged tissue. B) activation of a proenzyme exposed to collagen. C) release of tissue factor by damaged endothelium. D) activation of Factor X and production of prothrombin activator. E) conversion of fibrinogen to fibrin.

Ordinarily, it is not possible to transplant tissues from one person to another, yet corneas can be transplanted without tissue rejection. This is because the cornea ________.

A) is not a living tissue B) has no nerve supply C) has no blood supply D) does not contain connective tissue

Each of the following effects is associated with the action of postganglionic sympathetic fibers except

A) increased sweat secretion. B) reduced circulation to the skin. C) decreased heart rate. D) dilation of the pupils. E) increased blood flow to skeletal muscles.