Biom 525b - Study guides, Class notes & Summaries

Under which of these conditions are you most likely to observe a depression in plasma prolactin levels? Selected Answer: b. Increased stimulation of dopaminergic neurons of the hypothalamus Correct Answer: b. Increased stimulation of dopaminergic neurons of the hypothalamus  Question 2 1 out of 1 points The secretion of growth hormone by the somatotrophs of the anterior pituitary gland can be inhibited under the following conditions except; Selected Answer: d. Stress Correct An...

Under which of these conditions are you most likely to observe a depression in plasma prolactin levels? Selected Answer: b. Increased stimulation of dopaminergic neurons of the hypothalamus Correct Answer: b. Increased stimulation of dopaminergic neurons of the hypothalamus  Question 2 1 out of 1 points The secretion of growth hormone by the somatotrophs of the anterior pituitary gland can be inhibited under the following conditions except; Selected Answer: d. Stress Correct An...

Which step in testosterone synthesis is activated by luteinizing hormone (LH): Selected Answer: b. cholesterol to pregnenolone Correct Answer: b. cholesterol to pregnenolone  Question 2 1 out of 1 points The hypothalamic inhibitor od prolatin secretion is; Selected Answer: d. Dopamine Correct Answer: d. Dopamine

Peripheral venous pressure can be altered by Selected Answer: Two of the answers are correct. Correct Answer: Two of the answers are correct.  Question 2 1 out of 1 points The central venous compartment is filled by _____ and emptied as _____. Selected Answer: venous return; cardiac output Correct Answer: venous return; cardiac output

To produce dilute urine, Selected Answer: the distal tubule absorbs less water. Correct Answer: the distal tubule absorbs less water.  Question 2 1 out of 1 points Prolonged vomiting of the stomach's contents can result in Selected Answer: metabolic alkalosis. Correct Answer: metabolic alkalosis.

The stimulatory effects of gastrin on acid secretion are mediated in part by gastrininduced secretion of which substance? Selected Answer: Histamin e Correct Answer: Histamin e  Question 2 1 out of 1 points The endocrine or hormone-secreting cells of the gastrointestinal tract are located in or closest to which layer of the gut wall? Selected Answer: Mucos a Correct Answer: Mucos a

A person with a ventilation/perfusion (V/Q) defect has hypoxemia and is treated with supplemental O2. The supplemental O2 will be most helpful if the person's predominant V/Q defect is; Selected Answer: low V/Q Correct Answer: low V/Q  Question 2 1 out of 1 points Which of the following is true during inspiration? Selected Answer: Intrapleural pressure is more negative than it is during expiration Correct Answer: Intrapleural pressure is more negative than it is during expiratio...

The osmolarity of a solution of 50 mmol/L CaCl2 is closest to the osmolarity of which of the following: Selected Answer: 150 mmol/L urea Correct Answer: 150 mmol/L urea  Question 2 1 out of 1 points Which of the following neurotransmitters would be inactivated by peptidases: Selected Answer: Vasopres sin Correct Answer: Vasopres sin

Which of these cranial nerve nuclei is a component of the sympathetic nervous system? Selected Answer: a. CN III Correct Answer: d. None of these  Question 2 2.5 out of 2.5 points Which of the following actions is/are mediated by β2 receptors: Selected Answer: d. dilation of airways and relaxation of bladder wall Correct Answer: d. dilation of airways and relaxation of bladder wall  Question 3 0 out of 2.5 points Which of the following actions are mediated by muscarinic rec...