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What would happen to male hormone levels if the hypothalamus produced
gonadotropic releasing hormone (GnRH) continuously?
A. Only luteinizing hormone (LH) and follicular stimulating hormone (FSH)
levels would be high.
B. Only testosterone levels would be high.
C. Luteinizing hormone (LH), follicular stimulating hormone (FSH), and
testosterone levels would be high.
D. Testosterone levels would be low.
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- What would happen to male hormone levels if the hypothalamus producedgonadotropic releasing hormone (GnRH) continuously? A. Luteinizing hormone (LH), follicular stimulating hormone (FSH), andtestosterone levels would be high. B. Testosterone levels would be low C.Only luteinizing hormone (LH) and follicular stimulating hormone (FSH)levels would be high. D. Only testosterone levels would be high.Many cells reduce testosterone to a steroid that has a higher affinity to the androgen receptor. What is the name of this steroid? a. Progesterone. b. Estradiol. c. Cortisol. d. 5 α-dihydrotestosterone.Which states are contraindications for surgical treatment of goiter? A. Diffuse toxic goiter in decompensation B. Nodular goiter C. Toxic goiter in pregnancy D. Adenoma of thyroid gland E. Diffuse toxic goiter in compensation
- What are the hormone-like compounds produced by a variety of organs all over the body that act in the same area as where they're produced?A. ProhormonesB. prostaglandinsC. Androgens D. Growth hormonesWhat are the two hormones released from the posterior pituitary? a. mineralocorticoid and glucocorticoid b. luteinizing hormone and follicle-stimulating hormone c. epinephrine and norepinephrine d. oxytocin and vasopressin When mechanical force is absorbed by a sensory receptor, the energy is transduced into a local depolarization or hyperpolarization that can be large or small depending on the strength of the stimulus. What is this called? a. an opponent process b. an action potential c. a graded receptor potential d. conscious awareness of sensationWhen blood glucose levels increase, the secretion of which of thesehormones increases?a. glucagon c. GH e. epinephrineb. insulin d. cortisol
- The figure at right presents a schematic of an endocrine pathway that regulates testosterone production. The arrows and the cylinder indicate transport of a chemical messenger in the circulatory system. In this pathway, luteinizing hormone... A. Is a tropic neurohormone B. Regulates the synthesis of a peptide hormone C. Is released in response to a tropic neurohormone D. Is synthesized on demand E. None of the above Gonadotropin releasing hormone Hypothalamic neuron Luteinizing hormone testosterone Anterior pituitary cell Steroidogenic cell Target tissue cellFollicle stimulating hormone inhibits the secretion of which hormone in a short loop negative feedback? A. Growth hormone B. Testosterone C. Adrenocorticotropic hormone D. Gonadotropin releasing hormone E. SomatostatinOxytocin is a peptide hormone that is released into the bloodstream and interacts with smooth muscle cells that have receptors, which stimulate lactation when binding to the hormone. Oxytocin is most likely a... A. Lipid-soluble, tropic hormone B. Water-soluble, nontropic hormone C. Water-soluble, tropic hormone D. Lipid-soluble, nontropic hormone E. Pheromone
- Given these events:(1) activation of cAMP(2) activation of genes(3) alteration of enzyme activityWhich of these events can occur when a hormone binds to a nuclearhormone receptor?a. 1 b. 1,2 c. 2,3 d. 1,2,3Which statement best describes the relationship between the hypothalamus and the posterior pituitary gland? A. The posterior pituitary gland stores and secretes hormones produced by the hypothalamus B. The posterior pituitary gland regulates the secretion of hormones from the hypothalamus C. The posterior pituitary gland communicates with the hypothalamus via a system of blood vessels D. The posterior pituitary gland secretes exocrine substances directly into the hypothalamus1. Follicle-stimulating hormone stimulates the production of?a. steroids in the adrenal cortex.b. gametes (sperm and oocytes) in males and females.c. hormones in parafollicular cells of the thyroid gland.d. melanin in melanocytes.