Anatomy & Physiology: The Unity of Form and Function
8th Edition
ISBN: 9781259277726
Author: Kenneth S. Saladin Dr.
Publisher: McGraw-Hill Education
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Chapter 27.4, Problem 11AYLO
Summary Introduction
To discuss:
The typical sperm count and the minimum count necessary for fertility.
Introduction:
Semen is the fluid part that is ejaculated out during male orgasm. Semen consists of sperm, seminal fluid, and prostate fluid. Sperm is the key functional part of semen that involves in fertilization process of the egg.
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Chapter 27 Solutions
Anatomy & Physiology: The Unity of Form and Function
Ch. 27.1 - Essential characteristics of sexual reproduction;...Ch. 27.1 - Multiple functions of the male and female...Ch. 27.1 - Prob. 3AYLOCh. 27.1 - Prob. 4AYLOCh. 27.1 - Prob. 5AYLOCh. 27.1 - Fates of the mesonephric and paramesonephric ducts...Ch. 27.1 - Structures of the embryonic genital tubercle,...Ch. 27.1 - Prob. 8AYLOCh. 27.2 - Anatomy and functions of the scrotum and spermatic...Ch. 27.2 - Prob. 2AYLO
Ch. 27.2 - Prob. 3AYLOCh. 27.2 - The germinal epithelium of the seminiferous...Ch. 27.2 - The arterial supply and venous drainage of the...Ch. 27.2 - Gross anatomy of the epididymis; the series of...Ch. 27.2 - Three sets of male accessory glands: their...Ch. 27.2 - Prob. 8AYLOCh. 27.2 - Prob. 9AYLOCh. 27.3 - Definitions of puberty and adolescence; the...Ch. 27.3 - Prob. 2AYLOCh. 27.3 - Prob. 3AYLOCh. 27.3 - Prob. 4AYLOCh. 27.3 - Changes in the levels of testosterone, inhibin,...Ch. 27.3 - Prob. 6AYLOCh. 27.4 - Prob. 1AYLOCh. 27.4 - Why meiosis is necessary in sexually reproducing...Ch. 27.4 - Prob. 3AYLOCh. 27.4 - Prob. 4AYLOCh. 27.4 - The origin of primordial germ cells, their...Ch. 27.4 - Prob. 6AYLOCh. 27.4 - Prob. 7AYLOCh. 27.4 - Prob. 8AYLOCh. 27.4 - Prob. 9AYLOCh. 27.4 - Prob. 10AYLOCh. 27.4 - Prob. 11AYLOCh. 27.5 - Blood vessels of the penis and how they function...Ch. 27.5 - Prob. 2AYLOCh. 27.5 - Prob. 3AYLOCh. 27.5 - The mechanism of erection including the roles of...Ch. 27.5 - The physiological state of the male in the plateau...Ch. 27.5 - Prob. 6AYLOCh. 27.5 - Prob. 7AYLOCh. 27 - crypto-Ch. 27 - Prob. 2BYMVCh. 27 - Prob. 3BYMVCh. 27 - Prob. 4BYMVCh. 27 - Prob. 5BYMVCh. 27 - meio-Ch. 27 - Prob. 7BYMVCh. 27 - Prob. 8BYMVCh. 27 - someCh. 27 - Prob. 10BYMVCh. 27 - Prob. 1TYCCh. 27 - Prob. 2TYCCh. 27 - Prob. 3TYCCh. 27 - Why is it possible for spermatogonia to be outside...Ch. 27 - A 68-year-old man taking medication for...Ch. 27 - Testosterone is secreted by the nurse cells of the...Ch. 27 - Prob. 2WWTSCh. 27 - Prob. 3WWTSCh. 27 - Prob. 4WWTSCh. 27 - A high testosterone level makes a fetus develop a...Ch. 27 - Prob. 6WWTSCh. 27 - Prob. 7WWTSCh. 27 - Prob. 8WWTSCh. 27 - Male menopause is the cessation of sperm...Ch. 27 - Prob. 10WWTSCh. 27 - The ductus deferens develops from the _______.of...Ch. 27 - The protein that clots and causes the stickiness...Ch. 27 - The expulsion of semen occurs when the...Ch. 27 - Prob. 4TYRCh. 27 - The penis is attached to the pubic arch by crura...Ch. 27 - The first hormone secreted at the onset of puberty...Ch. 27 - Prob. 7TYRCh. 27 - Four spermatozoa arise from each a. primordial...Ch. 27 - The point in meiosis at which sister chromatids...Ch. 27 - Blood is forced out of the penile lacunae by...Ch. 27 - Prob. 11TYRCh. 27 - Prob. 12TYRCh. 27 - Prob. 13TYRCh. 27 - Prob. 14TYRCh. 27 - Prob. 15TYRCh. 27 - Prob. 16TYRCh. 27 - Prob. 17TYRCh. 27 - Prob. 18TYRCh. 27 - Erection of the penis occurs when nitric oxide...Ch. 27 - A sperm penetrates the egg by means of enzymes in...Ch. 27 - Prob. 1BYGOCh. 27 - Prob. 2BYGOCh. 27 - Prob. 3BYGOCh. 27 - Prob. 4BYGOCh. 27 - Prob. 5BYGOCh. 27 - Prob. 6BYGOCh. 27 - Prob. 7BYGOCh. 27 - Prob. 8BYGOCh. 27 - Prob. 9BYGOCh. 27 - Prob. 10BYGOCh. 27 - Prob. 11BYGOCh. 27 - Prob. 12BYGOCh. 27 - Prob. 13BYGOCh. 27 - Prob. 14BYGOCh. 27 - Prob. 15BYGOCh. 27 - Prob. 16BYGOCh. 27 - Prob. 17BYGOCh. 27 - Prob. 18BYGOCh. 27 - Prob. 19BYGOCh. 27 - Prob. 20BYGO
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- In the male reproductive gland in the growth zone there are 20000 primary spermatocytes. How many secondary spermatocytes and spermatozoacan be formedarrow_forwardIn menstruation, the stratum functionalis is shed from the endometrium. Explain the hormonal and physical factors responsible for this shedding.arrow_forwardA male fetus, a male baby less done 1 month old and a 60 year old man of weight 90Kg. Who has the highest concentration of Androgen in his blood and why?arrow_forward
- Ms. S and Mr. J are having difficulty conceiving a child. Ms. S ovulates every 28 days, and Mr. J sperm count is normal. If we could observe Mr. J sperm about an hour after ejaculation, however, we’d see that they appear to be moving only sluggishly. When Mr. J sperm eventually encounter Ms. S oocyte, they appear to be incapable of generating an adequate acrosomal reaction. Which process has probably gone wrong?arrow_forwardTrue or false sperm and ova or not identical to the parent cells that produce them?arrow_forwardThe endocrine control of the spermatogenesis begins in the _______ with the production of gonadotropin releasing hormone (GnRH). hypothalamus, testes, anterior pituitary, or posterior pituitary.arrow_forward
- sperm and ova are similar in terms ofarrow_forwardOnly one sperm is needed to fertilize an egg, yet a man who ejaculates fewer than 10 million sperm is usually infertile. Explain this apparent contradiction.arrow_forwardA normal discharge from the glans penis is called penorrhea. True False.arrow_forward
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Reproduction: Crash Course Zoology #9; Author: CrashCourse;https://www.youtube.com/watch?v=poLyJDVjKlM;License: Standard youtube license