Which one of the following is true regarding neurohormones? A. they…

Question Answered step-by-step Which one of the following is true regarding neurohormones? A. they… Which one of the following is true regarding neurohormones? A. they are primarily considered to be a form of local communication B. alpha-MSH would be an example of a neurohormone, used in the satiety pathway C. they are used as a form of rapid communication between two neurons D. at least one neurohormone is important in the control of body fluid regulation  2. You’ve created a new drug to treat COVID. It is a hydrophilic drug that is about the same size as tyrosine and needs to get inside epithelial cells of the lungs. Which one of the following statements would be true of this drug? A. these epithelial cells would need a lot of protein channels to get this drug inside B. assuming there is a very high concentration of drug in the blood compared to epithelial cells, this drug would move into these cells through active transport C. it would be important to know that there was no competitive inhibition by any substances in the body before administering the drug D. it would bind to plasma membrane receptors to cause its effects on these cells  3. A hormone is known to cause smooth muscle relaxation in blood vessels. However, it also causes contraction of cardiac muscle. What statement below would be true of this hormone? A. it acts through paracrine signalling in the heart, but the blood vessels undergo endocrine signalling B. the blood vessels have a different receptor for this hormone than the heart does C. the heart is a target cell of this hormone, but not the blood vessels D. this is not possible as hormones have the same effect on all target organ 4. if a hormone must bind to a carrier protein in the blood, which one of the following would be FALSE? A. the hormone could be gonadotropin-releasing hormone and likely acts to alter preexisting proteins B. the hormone could move through the plasma membrane of the target cell to bind its receptor C. the hormone could be progesterone that is released from the placenta during pregnancy D. the hormone will not be made from various amino acids like oxytocins 5. Following a motor accident, a patient complained of headaches, being constantly thirsty and urinating more frequently than usual. A computed tomography (CT) scan showed that the patient had which one of the following? A. internal bleeding that damaged the posterior hypothalamus B. a lesion (damage) to the anterior pituitary C. a transection/disruption of the infundibulum D. a blood clot in the hypothalamic-hypophyseal portal system. 6.A patient was found to have a tumor within the hypothalamus. The patient showed an elevated body temperature, increased blood pressure, and high heart rate. Consistent with these symptoms, where was the tumor was located? A. paraventricular hypothalamic nucleus B. anterior hypothalamic nucleus C. posterior hypothalamic nucleus D. lateral hypothalamus 7. .What is true about neurons that produce vasopressin (antidiuretic hormone)? A. are found within the suprachiasmatic nucleus B. have axons that end within the posterior pituitary C. are activated when blood volume is elevated D. are sensitive to blood temperature changes  8 .What are mutations of the MC4 receptor associated with? A. decreased energy expenditure B. anorexia C. weight loss D. increased release of the neurotransmitter NPY 9 .What happens when oxytocin is released during activation of the neurohumoral reflex? A. it aids in milk production from myoepithelial cells in the breast B. it activates a positive feedback circuit by which each subsequent sensory stimulus produces a greater release of the hormone C. it occurs due activation of supraoptic nucleus neurons that make synaptic contacts in the anterior pituitary D. it is due to activation of basomedial hypothalamic neurons  10.What is the function of the hypothalamic neurotransmitter orexin? A. it evokes satiety through its action on the lateral hypothalamus B. to act together with NPY neurons in response to low circulating leptin levels C. it activates POMC neurons in the hypothalamus resulting in greater energy expenditure D. it is released by arcuate nucleus neurons to induce energy expenditure  11.What is true about the body’s biological clock? A. it affects platelet aggregation B. it regulates the release of posterior pituitary hormones C. it is under the control of the supraoptic nucleus D. it is thought to be controlled by the pineal gland 12. .What will be the result of acute decreases in leptin following fasting? A. activation of inhibitory pathways from arcuate neurons that inhibit activation of MC4 receptors B. increases the activity of POMC neurons to release alpha-MSH C. inhibits NPY/AgRP neurons that activate dorsomedial hypothalamic neurons D. decreases the activity of lateral hypothalamic neurons 13. Which one of the following does NOT occur in the ovary? A. meiosis II for a gamete B. the development of the zona pellucida C. the synthesis of progesteronD. mitosis of granulosa cells   Biology Science Physiology PHYSIOLOGY 1021 Share QuestionEmailCopy link Comments (0)