The inferior mesenteric artery (IMA) supplies all of the large intestines with freshly oxygenated blood.
Answer the following statement true (T) or false (F)
False
Rationale: The IMA supplies the left half of the transverse colon, descending colon, and rectum with freshly oxygenated blood.
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Chemical buffer systems are the most powerful mechanism available for defending against changes in [H+] because they respond the fastest
Indicate whether the statement is true or false
Which of the following would increase the maximum rate of facilitated diffusion?
A. Increase ATP synthesis B. Increase the concentration gradient of the transported molecule to the saturation point C. Decrease the concentration gradient of the transported molecule D. Increase the concentration of the competitive molecules E. None of the choices are correct.
This is a sagittal section through the abdominopelvic cavity. What serous membrane does "B" represent?
A. Visceral peritoneum (covers organs) B. Peritoneal cavity C. Retroperitoneal organs D. Mesentery E. Parietal peritoneum (lines cavity)
Which of the following statements about the endocrine system is false?
A) It has target cells that are mainly in distant tissues. B) It affects only cells with appropriate receptors. C) It releases secretions directly into body fluids. D) It is regulated by negative feedback mechanisms. E) It releases hormones, all of which are lipids, directly into the bloodstream.