The lower part of the large intestine including the rectum receives blood from the ________ artery
A) adrenal
B) inferior mesenteric
C) superior mesenteric
D) celiac
E) common iliac
Answer: B
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Human egg and sperm are similar in that ________.
A) about the same number of each is produced per month B) they have the same degree of motility C) they have the same number of chromosomes D) they are about the same size
Calcium ion blocking agents would most likely affect
A. action potential propogation along the transverse tubules. B. movement of the tropomyosin molecule. C. release of the myosin head from the G actin molecule. D. release of Ca2+ from the sarcoplasmic reticulum.
After a meal, blood glucose levels rise and stimulate the release of insulin. What type of stimulation is this example?
A. humoral B. neural C. hormonal D. hypothalamic
Before external respiration occurs, the concentration or partial pressure of carbon dioxide in the alveoli is ________ than in the pulmonary capillaries.
A. lower B. higher C. no different