Explanation Characters: Spinal cord Spinal nerves Genital organs Central nervous system To explain, reason for a young man met with a motorcycle accident that severed his spinal cord at his neck and leaves him paralyzed from the neck down. His wife asks the physician whether her husband can have penile erection. A young man met with a motorcycle accident that severed his spinal cord at his neck and leaves him paralyzed from the neck down. His wife asks the physician whether her husband can have penile erection and whether it is possible for him to father any children. What should the doctor tell her? Explain your answer. Penile erection is a physiological phenomenon in which the penis gets erected due to visual perception, touch, and sexual arousal. It is triggered by the parasympathetic division of autonomic nervous control of the sacral spinal nerves of S1, S2 and S3. A young man met with accident damaging his spinal cord and his spinal nerves were severed, making him completely paralyzed below the neck. Penile erection is brought on by the dilation of deep arteries in the penis by nitric oxide...

ANATOMY AND PHYSIOLOGY THE UNITY OF FORM

9th Edition

ISBN: 9781264807123

Author: SALADIN

Publisher: MCG

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Question

Chapter 27, Problem 2TYC

Summary Introduction

Summary:

The spinal cord is an important part of the central nervous system from where the spinal nerves emerge and innervate most of the organ systems from the neck to the limbs. Genital organs in human male and female reproductive systems are innervated by the pelvic splanchnic nerves which arise as sacral nerves from the spinal cord as S2, S3, and S4. These nerves control the motor functions of the genital organs.

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Chapter 27, Problem 1TYC

Chapter 27, Problem 3TYC

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Chapter 27 Solutions

ANATOMY AND PHYSIOLOGY THE UNITY OF FORM

Ch. 27.1 - Essential characteristics of sexual reproduction;...Ch. 27.1 - Multiple functions of the male and female...Ch. 27.1 - Prob. 3AYLO Ch. 27.1 - Prob. 4AYLO Ch. 27.1 - Prob. 5AYLO Ch. 27.1 - Fates of the mesonephric and paramesonephric ducts...Ch. 27.1 - Structures of the embryonic genital tubercle,...Ch. 27.1 - Prob. 8AYLO Ch. 27.2 - Anatomy and functions of the scrotum and spermatic...Ch. 27.2 - Prob. 2AYLO

Ch. 27.2 - Prob. 3AYLO Ch. 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. 8AYLO Ch. 27.2 - Prob. 9AYLO Ch. 27.3 - Definitions of puberty and adolescence; the...Ch. 27.3 - Prob. 2AYLO Ch. 27.3 - Prob. 3AYLO Ch. 27.3 - Prob. 4AYLO Ch. 27.3 - Changes in the levels of testosterone, inhibin,...Ch. 27.3 - Prob. 6AYLO Ch. 27.4 - Prob. 1AYLO Ch. 27.4 - Why meiosis is necessary in sexually reproducing...Ch. 27.4 - Prob. 3AYLO Ch. 27.4 - Prob. 4AYLO Ch. 27.4 - The origin of primordial germ cells, their...Ch. 27.4 - Prob. 6AYLO Ch. 27.4 - Prob. 7AYLO Ch. 27.4 - Prob. 8AYLO Ch. 27.4 - Prob. 9AYLO Ch. 27.4 - Prob. 10AYLO Ch. 27.4 - Prob. 11AYLO Ch. 27.5 - Blood vessels of the penis and how they function...Ch. 27.5 - Prob. 2AYLO Ch. 27.5 - Prob. 3AYLO Ch. 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. 6AYLO Ch. 27.5 - Prob. 7AYLO Ch. 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. 4TYR Ch. 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. 7TYR Ch. 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. 11TYR Ch. 27 - Prob. 12TYR Ch. 27 - Prob. 13TYR Ch. 27 - Prob. 14TYR Ch. 27 - Prob. 15TYR Ch. 27 - Prob. 16TYR Ch. 27 - Prob. 17TYR Ch. 27 - Prob. 18TYR Ch. 27 - Erection of the penis occurs when nitric oxide...Ch. 27 - A sperm penetrates the egg by means of enzymes in...Ch. 27 - crypto-Ch. 27 - Prob. 2BYMV Ch. 27 - Prob. 3BYMV Ch. 27 - Prob. 4BYMV Ch. 27 - Prob. 5BYMV Ch. 27 - meio-Ch. 27 - Prob. 7BYMV Ch. 27 - Prob. 8BYMV Ch. 27 - some Ch. 27 - Prob. 10BYMV Ch. 27 - Testosterone is secreted by the nurse cells of the...Ch. 27 - Prob. 2WWTS Ch. 27 - Prob. 3WWTS Ch. 27 - Prob. 4WWTS Ch. 27 - A high testosterone level makes a fetus develop a...Ch. 27 - Prob. 6WWTS Ch. 27 - Prob. 7WWTS Ch. 27 - Prob. 8WWTS Ch. 27 - Male menopause is the cessation of sperm...Ch. 27 - Prob. 10WWTS Ch. 27 - Prob. 1TYC Ch. 27 - Prob. 2TYC Ch. 27 - Prob. 3TYC Ch. 27 - Why is it possible for spermatogonia to be outside...Ch. 27 - A 68-year-old man taking medication for...

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Solution Summary: The author explains that the spinal cord is an important part of the central nervous system, where spinal nerves innervate most organ systems from the neck to the limbs.

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