Essntls. Of Human Anat....-With CD and Mod.Access
Essntls. Of Human Anat....-With CD and Mod.Access
11th Edition
ISBN: 9780134009629
Author: Marieb
Publisher: PEARSON
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Chapter 9, Problem 1MC

More than one choice may apply.

The major endocrine organs of the body

a. tend to be very large organs.

b. are closely connected with each other.

c. all contribute to the same function (digestion).

d. tend to lie near the midline of the body.

Expert Solution & Answer
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Summary Introduction

Introduction:

The endocrine system is the second control system of the body after nervous system. It releases hormones, which, in turn, regulate complex body processes like growth, metabolism, and reproduction. These hormones are released by major endocrine organs namely, the pituitary, pineal, thyroid, parathyroid, thymus and adrenal glands, pancreas, and gonads.

Answer to Problem 1MC

Correct answer:

Although a few endocrine organs and tissues are situated in the separate regions of the body, all the major endocrine organs are present in the close vicinity of the midline of the human body.

Explanation of Solution

Explanation for the correct answer:

Option (d) is given that all the major endocrine organs lie close to the midline of the body. The major endocrine organs of the body include pituitary, pineal, hypothalamus, thyroid, parathyroid, thymus and adrenal glands, pancreas, and gonads (ovaries and testes) that generally lie in the midline in the anatomical plane of the human body. Hence, option (d) is correct.

Explanation for incorrect answers:

Option (a) is given that endocrine organs tend to be very large. The organs of the endocrine system are of all sizes, some being very small (like pineal and pituitary glands) and others being large (thyroid gland). So, it is an incorrect option.

Option (b) is given that all the endocrine organs are connected to each other. The endocrine organs are situated in different places in the body. So, it is an incorrect option.

Option (c) is given that all organs of the endocrine system control the same function. The endocrine glands exhibit distinct functions. The thyroid gland is involved in the growth and development of body tissues, whereas gonads are for reproductive functions. So, it is an incorrect option.

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

Conclusion

The endocrine system consists of organs that are specialized to regulate various body processes. They secrete chemical messengers called hormones, which act on the target cell and control their functions.

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Students have asked these similar questions
Which 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 environment
which of the following happens when a therapeutic synthetic hormone is introduced into the body to treat the patients natural hormone insufficiently? (select all that apply? A. the target cells respond the same way as when the hormone is natural B.the synthetic hormone has no effort on the target tissues C the amount of natural hormone produced by patients body declines D the syntheyic hormone is destroyed before it can have an effect on the target tissue.
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.
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