Which of the following elements of a control system detects a change?
A) control center
B) stimulus
C) effector
D) receptor
E) efferent pathway
D
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Substances such as bacteria and viruses that are perceived as abnormal to the body and provoke an immune response are called ________.
Fill in the blank(s) with the appropriate word(s).
The vein that drains immediately into the femoral vein is the ________ vein.
A. common iliac B. posterior tibial C. great saphenous D. anterior tibial E. small saphenous
Tony is a chronic alcoholic with cirrhosis of the liver, a condition in which liver cells die and are replaced by connective tissue. Which of the following signs would you not expect to observe in Tony?
A) increased clotting time B) jaundice C) portal hypertension and ascites D) decrease in plasma protein production E) impaired erythropoiesis
Hormones are examples of ________ secretion.
A) exocrine B) apocrine C) endocrine D) holocrine E) merocrine