WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
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ISBN: 9781319487317
Author: PHELAN
Publisher: INTER MAC
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Chapter 25, Problem 6MC
Summary Introduction
Introduction:
Each gland in the body produces hormones specific to it; all glands do not produce all hormones.
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Which of the following statements about steroid and non-steroid hormones is false?a. Non-steroid hormones typically act through second messengers such as cAMP.b. Non-steroid hormones are not lipid soluble and cannot enter the target cell.c. Steroid hormones act usually slower than non-steroid hormones.d. Cortisol and aldosterone are non-steroid hormones that are produced by the cortex of the adrenal gland
Which of the following statements about hormones is not correct?
A. The persistance of a hormone in the blood is usually of short duration.B. The time required for the onset of hormonal effects can vary
C. Organ responses to hormones occur as soon as receptors are bound.
D. The duration of hormone action is variable.
Oxytocin 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
Chapter 25 Solutions
WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
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- 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 cellarrow_forwardWhich of the following correctly describes the functions of the endocrine system? a. Transport of blood through the body and through the lungs b. Regulation of body functions through hormone secretion c. Regulation of body functions through nerve impulses d. Immunity and returning extra tissue fluid to the blood vesselsarrow_forwardWhich of these is not a means by which hormones are eliminatedfrom the circulatory system?a. excreted into urine or bileb. bound to binding proteinsc. enzymatically degraded in the blood (metabolism)d. actively transported into cellse. conjugated with sulfate or glucuronic acidarrow_forward
- What 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 sensationarrow_forwardMany 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.arrow_forwardWhich of the following statements is NOT true about human growth hormone (hGH)? Select one: a. Excessive levels of hGH has been linked with diabetes mellitus. b. Genetically engineered hGH has been used safely to treat dwarfism. c. After the growth plate has sealed, increased levels of hGH results in a widening of the nose. d. hGH is produced in the hypothalamus and secreted by anterior pituitary.arrow_forward
- Which of the following class of chemicals exerts its effects by entering cells, binding intracellular receptors, and affecting gene expression? a. Peptides b. Steroids c. Bioactive amines d. Amino acids Studies have demonstrated biological differences between adult heterosexual and adult homosexual men. Which of the following has been shown to be different between these groups? a. different pattern of cortical neuron branching b. different testosterone levels c. different size of a hypothalamic nucleus d. different estrogen levelsarrow_forwardWhich of the following is a product of the rate limiting step of steroid hormone synthesis? a. Estradiol b. Corticosterone c. Progesterone d. Pregnenolonearrow_forwardWhich of the following describes neurohormones? a. Hormones that affect nerve cell activity b. Hormones that inhibit nerve cell activity C. Hormones released into the blood by neurons d. Hormones released into the synaptic cleft by presynaptic neuronsarrow_forward
- Which is the following is an example of the nervous system directly interacting with the endocrine system? a. The secretion of cortisol early in the morning b. The continuous secretion of thyroid hormone c. The secretion of epinephrine and norepinephrine during the fight or flight response d. The secretion of insulin after a mealarrow_forward1. Cortisol: a. is made in the middle zone of the adrenal cortex b. is a glucocorticoid c. has an antiimmunity effect d. all of the above 2. Protein hormones have hormone receptors in the cell: a. both a and c above b. membrane c. nucleus 3. D. cytoplasm The difference between a three- and a two-neuron reflex is that a three-neuron reflex: a. includes an efferent neuron b. includes an afferent neuron c. passes through the dorsal root ganglion d. includes an interneuronarrow_forwardWhich of the following is an important function of the endocrine system? a. Provides mechanisms for rapid response to changes in the body b. Provides mechanisms that control the nervous system c. It inhibits nervous system action on muscles and glands d. It maintains a contant yet dynamic internal fluid environmentarrow_forward
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