Reproductive system male – Flashcards
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What are the principa functions of the testis
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production of sperm testosterone
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Why are the testes located in the scrotum rather than inside the ventral body cavity.
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Keep 3 degrees cooler for sperm production.
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A screening tool for benign prostatic hyperplasia and prostate cancer includes palpation of the prostate. Explain
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Palpate through anterior portion of rectal wall.
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Would you expect a male benign prostatic hyperlasia to have difficulty with ejacualtion? why
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Yes, prostetic enlarge, press on urethra & closure may occur, difficult ejaculation
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How might enlargement of the prostate gland interfere with urination or a man's reproductive ability?
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Urethra goes through the prostate gland. Swelling/enlargement would constrict the urethra inhibiting ejaculation of semen
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copulatory organ/penetrating device
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penis
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produces sperm
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testis
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duct conveying sperm to the ejaculatory duct; in the spermatic cord
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vas deferens
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Urine and semen conduit
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spongy urethra
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muscular passageway conveying sperm to the ejaculatory duct: in the spermatic cord
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ductus (vas) deferens
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distal urethra that transports both sperm and urine
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spongy urethra
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sperm maturation site
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epididymis
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location of the testis in adult males
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scrotum
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Hoods/loose fold of skin encircling the glans penis
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prepuce
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portion of the urethra that is located in the urogenital diaphragm
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intermediate part of the urethra
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protion of the urethra between the prostate gland and the penis
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intermediate part of the urethra
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empties a secretion into the prostatic urethra
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prostate gland
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empties a secretion into the intermediate part of the urethra
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bulb-urethral gland
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Describe the compesition of semen, and name all structures contributing to its formation.
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semen is composed of sperm and secretions from the accessory organs including the: prostate gland, seminal vessicles bulb urethral glands
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Of what importance is the fact that seminal fluid is alkaline.
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because semen is basic, it helps neutralize the acidic nature of the urethra where urine also travels
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What structures compose the spermatic cord?
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CT sheath, ductus vas deferens, blood vessels, lymphatic vessels
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Where is spermatic cord located
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passes from scrotal sac, through inguinal canal into abdom cavity
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Trace the pathway of sperm from the testes to the urethra
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seminiferous tubules, rete testis, epidydymis, vas deferens
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An increased number of cells results in an enlarged prostate. As men age normal hormonal changes can cause and increased proliferation of cells, which can enlarge the prostate and lead to urinary dysfunction.
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Benign prostatic hyperplasia
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2 layers of smooth myo suround the seminal gland, and inner circular layer and outer longitudinal layer
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layers of smooth muscle in the seminal gland
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What is the function of the cavernous bodies seen in the penis.
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The tissues can become engorged with blood, making the penis stiff and a more effective penitrating organ
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What is the function of the stereocilia exhibited by the epithelial cells of the mucosa of the epididymis.
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They absorb excess fluid and provide nutrients to the maturing sperm.
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The testis is divided into a number of lobes by connective tissue. Each of these lobes contains one to four ________, which converge to empty sperm into another set of tubules called the _________.
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seminiferous tubules rete testis
