Anatomy and Physiology
9th Edition
ISBN: 9781260256000
Author: SALADIN
Publisher: MCG
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Chapter 27.2, Problem 9AYLO
Summary Introduction
To discuss:
The erectile tissue of penis and their histology. The lacunae, trabeculae, and trabecular muscles. Differences between the corpus spongiosum and corpora cavernosa.
Introduction:
The penis is an external reproductive organ of males. It is used in sexual intercourse and for the semen ejaculation. It also serves as the male urogenital organ in excretion of urine. The penis consists of muscular architecture that help the penis in erection during sexual arousal.
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Development and histology of Female Reproductive system.
HEALTHY 42-YEAR-OLD MAN PRESENTED TO THE EMERGENCY DEPARTMENT AFTER THE ACUTE ONSET OF penilepain during sexual intercourse. The erect penis had inadvertently collided with his partner’s perineum. Heheard a snap, noticed a rush of blood from the meatus, had immediate detumescence, and had severe pain. The penile“fracture” refers to a tear in the tunica albuginea, the watertight fibrous outer sheath of the corpora caver-nosa that isresponsible for maintaining the structural integrity of an erection. Disruption of the tunica results in a loss of bloodoutside the corpora, causing a hematoma. The classic eggplant deformity (swelling, discoloration, and deviation awayfrom the defect in the tunica) can be seen. If the fracture involves the urethra, blood will extravasate through theurethra. On the basis of the clinical presentation, the patient was taken to the operating room for emergency repair.The patient had an uneventful postoperative course and was discharged from the hospital the…
Each testis is covered by a serous membrane called the:
Question 38 options:
Tunica albuginea
Pampiniform plexus
Tunica vaginalis
Mediastinum
Corpus spongiosum
Chapter 27 Solutions
Anatomy and Physiology
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 - 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 - 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 - 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 - 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...
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- the prostate gland, seminal vesicles, and the bulbourethral glands. Describe the composition of each gland's secretions.arrow_forwardWhat are the functions of the dartos fascia and the cremaster muscle? Why are they necessary for male fertility? The gamete producing structure of males is part of the external genitalia. True or Falsearrow_forwardSuppose the corpus spongiosum became as engorged with blood as the corpora cavernosa do during erection of the penis. What problem would this create for sexual function?In light of this, why is it beneficial that the corpus spongiosum is not enclosed in a tunica albuginea?arrow_forward
- Identify the following: Sertoli (sustentacular) cells, Leydig (interstitial cells), Sperm, Seminiferous tubule 1) 2) 3) 4) 1 4 1. Which cells make testosterone?arrow_forwardGiven these glands: I. Prostate gland; II. Bulbourethral gland; III. seminal vesicle Choose the arrangement that is in the order that a sperm cell would encounter their secretions. II, III, I III, I, II II, I, III I, II, III III, II, Iarrow_forwardA normal discharge from the glans penis is called penorrhea. True False.arrow_forward
- Histological description of the major organs of the reproductive system: Explain each in long explanation Epididymis Ductus Deferens Penis Cervix Placenta Mammary Gland Uterine (menstrual) Cyclearrow_forwardWhich structure on the female is homologus to the male scrotum? How are male and female urethras similar and different? What might the clinical significance in the differences. Define an ovarian follicle- Define oocyte-arrow_forwardMale reproductive organs and duct system, sagittal section.arrow_forward
- During an erection, the corpus spongiosum never becomes as engorged with blood (never gets as hard) as the corpora cavernosa. Why must this be the case? Where does fertilization take place (if it takes place)?arrow_forwardWhich of the following are NOT supporting structures of the male reptoductive system? Scrotum Crura of the penis Corpus spongiosum Spermatic cord None of the choicesarrow_forwardState where the seminal vesicles, prostate gland, andbulbourethral glands empty into the male reproductiveduct systemarrow_forward
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