Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 38, Problem 1MC
Summary Introduction

Introduction:

There are clusters of specialized cells present in the hypothalamus which are known as neurosecretory cells. Thin fibers or axons are grown by neurosecretory cells which end in capillary bed and connect hypothalamus to anterior lobe of the pituitary. The neurosecretory cells produce six different regulatory hormones which can be either releasing or inhibiting hormones.

Expert Solution & Answer
Check Mark

Answer to Problem 1MC

Correct answer:

The neurosecretory cells in the hypothalamus produce hormones which are involved in the reabsorption of water by the kidney. Therefore, option (c) is correct.

Option (c) is given as “produce hormones that regulate water reabsorption in the kidney”.

Explanation of Solution

Justify reasons for the correct statement:

The neurosecretory cells of the hypothalamus are involved in the synthesis of peptide hormones, their storage, and release. The neurosecretory cells produce antidiuretic hormone and oxytocin hormone. The antidiuretic hormone maintains blood pressure, tissue water, and volume of blood by regulating the amount of water and thereby controlling the concentration of urine.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “release growth hormone and prolactin”.

The growth hormone and prolactin are released by the anterior lobe of the pituitary. Prolactin stimulates the development of mammary glands and growth hormone stimulates the growth of bone and increases synthesis of proteins. These hormones are not released by neurosecretory cells. Hence, it is a wrong answer.

Option (b) is given as “release hormones that control hormone secretion by cells in the posterior pituitary”.

The neurosecretory cells in the hypothalamus release six different regulatory hormones. All these hormones regulate the release of hormones from the anterior lobe of the pituitary. The hormones released by neurosecretory cells do not regulate hormonal secretion of posterior pituitary. Hence, it is a wrong answer.

Option (d) is given as “produce hormones that stimulate glucose uptake by muscle cells”.

The hormone which stimulates the uptake of glucose by muscle cells is insulin. Insulin is produced by beta cells of the pancreas and not neurosecretory cells in the hypothalamus. Hence, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

The neurosecretory cells in hypothalamus form axons which end in the capillary bed in the stalk which connects hypothalamus to anterior lobe of the pituitary. These cells secrete six different regulatory hormones which regulate the hormonal secretion of the anterior pituitary. Apart from these six hormones, neurosecretory cells also release oxytocin and antidiuretic hormone. The antidiuretic hormone regulates the reabsorption of water by the kidney.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
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 sensation
The secretion of epinephrine and norepinephrine from the adrenal medulla is stimulated by a. adrenocorticotropic hormone. b. increased levels of growth hormone. C. sympathetic nerve innervation. d. increased levels of glucose in body fluids
The adrenal glands are attached superiorly to which organ?a. thyroidb. liverc. kidneysd. hypothalamus
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Physiology of Sleep (Cycles and Waves); Author: USMLE pass;https://www.youtube.com/watch?v=LqY1Vn9y89A;License: Standard Youtube License