Term
| 2.5-3.5 mL per ejaculation, 100 million sperm/mL so 250-350 miliion sperm/ejaculate |
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Definition
| what is the volume of an average ejaculate? how many sperm/mL? |
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Term
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Definition
| how much do the seminal vessicles contribute to semen? |
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Term
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Definition
| how much does the prostate contribute to the semen? |
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Term
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Definition
| how much do the bulbourethral glands contribute to semen? |
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Term
| glands in the urethral wall |
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Definition
| besides the seminal vessicles, prostate, and bulbourethral glands, what else contributes to the volume of the semen? |
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Term
| not a lot, the sperm component is only 10% of the volume. 90% is from the seminal vesicles and the prostate. |
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Definition
| what does a vasectomy do to the volume of the semen? |
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Term
| goes through all 3 inguinal rings of the inguinal canal, with the spermatic cord contents, then superior to the inferior epigastric artery, superior then medial to the ureters to the posterior bladder. |
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Definition
| how does the vas deferens reach the urethra? |
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Term
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Definition
| where does the vas deferens pass in relation to the inferior epigastric artery? |
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Term
| superior(the superior pole) and posterior |
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Definition
| on what side of the testes is the head of the epididymis? |
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Term
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Definition
| what is the name of the heavy connective tissue coat covering the testes? |
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Term
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Definition
| what lies between the septa of the testes? |
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Term
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Definition
| this is the product of an outpocket of parietal peritoneum that wraps around the head of the epididymus then reflects on the posterior side. |
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Term
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Definition
| what connects the head of the epididymus to the top of the testes? |
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Term
| the testicular artery is more anterior |
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Definition
| which is more anterior, the testicular artery or the artery to the ductus deferens? |
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Term
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Definition
| what vessel does the artery to ductus deferens come off of? |
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Term
| testicular artery is superior |
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Definition
| where does the testicular artery come off the aorta in relation to the IMA? |
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Term
| the superficial ingiunal nodes above the inguinal ligament |
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Definition
| where does the scrotum drain lymphatics to? |
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Term
| follows the blood supply up the testicular artery |
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Definition
| what is the general path of the lymph drainage from the testis? |
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Term
| a hydrocele is an overproduction of the serous fluid, which is clear, so a flashlight should be able to shine through them. A spermatocele is not a clear fluid and would be opaque when a flashlight is shined on the testes. |
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Definition
| how can you distinguish a hydrocele from a spermatocele? |
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Term
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Definition
| a benign cystic accumulation of sperm in the testes that arises from the head of the epididymis (or efferent ductules) |
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Term
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Definition
| what appears as a palpable mass from the testes to the inguinal ring, that feels like a bag of worms? |
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Term
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Definition
| abnormal enlargement of the pampiniform plexus veins, which lack valves |
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Term
| when it enters the bulb of the penis |
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Definition
| when does the membranous urethra become spongy urethra? |
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Term
| embedded in the muscle fibers of the sphincter urethrae |
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Definition
| where are the bulbourethra glands found? |
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Term
| they cross through the perineal membrane and into the bulb of the penis where they join the urethra. |
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Definition
| where do the BU glands enter the urethra? |
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Term
| the ampulla of the vas deferens is more medial |
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Definition
| which structure is more medial, the ampulla of the vas deferens or the seminal vessicle? |
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Term
| the prostatic venous plexus |
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Definition
| what fills the gap between the bladder and the pelvic diaphragm? |
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Term
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Definition
| what part of the urethra pass through the UG hiatus? |
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Term
| independently, they form a series of pores into the urethra |
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Definition
| how do the prostatic ducts enter the urethra? |
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Term
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Definition
| where do the ejaculatory ducts merge? |
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Term
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Definition
| what is the male analog to the vagina? |
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Term
| the vas deferens and seminal vesicle meet and form the ejaculatory duct on each side |
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Definition
| what structure(s) feed into the ejaculatory duct? |
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Term
| the prostatic venous plexus which drains to the vertebral plexus |
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Definition
| what allows testicular cancer to spread to the spine? |
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Term
| a part of the prostrate that bulges out into the posterior urethra |
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Definition
| what is the seminal colliculus? |
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Term
| the ejaculatory ducts, the prostatic ducts, and the opening to the prostatic utricle |
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Definition
| what structures enter the seminal colliculus? |
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Term
| above and below the seminal colliculus. they are ridges in the posterior prostatic urethra |
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Definition
| where is the urethral crest found? |
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Term
| they are the gutter-like areas around the prostatic utricle and urethra crest in the prostatic urethra |
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Definition
| where is the prostatic sinus? |
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Term
| it is where the penis attaches to the pubic symphysis |
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Definition
| what is significant about the sharp bend in the crura of the penis? |
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Term
| the suspensory ligament of the penis |
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Definition
| what ligament connects the penis to the pubic symphysis? |
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Term
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Definition
| what are the crura called when they fuse together in the external penis? |
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Term
| it narrows and becomes the corpus spongiosum around the uretrha, then expands to become the glans of the penis |
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Definition
| what happens to the bulb of the penis when it exits the perineum? |
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Term
| the corpus spongiosum which is continuous with the bulb of the penis |
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Definition
| what becomes the glans of the penis? |
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Term
| so it can fit into the hollow area behind the glans like a socket |
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Definition
| why is the corpora cavernosum shaped like a cone at the end? |
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Term
| So, I definitely asked D. Law this question back in the day, and he couldn't tell me the answer. I am glad to finally know it is erect, in accordance to the naming of the vessels as "dorsal" |
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Definition
| what is the anatomical position of the penis? |
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Term
| the dorsal artery and nerve, and the superficial dorsal vein |
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Definition
| what vessels/nerves are found on the posterior erect penis? |
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Term
| superficial vein of the penis |
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Definition
| what vein drains the superficial structures of the penis (skin and glands)? |
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Term
| the dorsal nerve of the penis |
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Definition
| what nerve transmits somatic sensory information ONLY from the skin of the penis, especially the glans? |
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Term
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Definition
| what vein drains the erectile tissue at the end of erection? |
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Term
| the tunica albuginea, it prevents the erectile tissue from expanding too much, and maintains the pressure due to its special arrangement of collagen fibers |
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Definition
| what allows the penis to become rigid during erection? |
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Term
| the tunica albuginea in the penis is totally separate from the testicular one, it surrounds the corpus cavernosum(crus) and the corpus spongiosum(bulb) |
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Definition
| what does the tunica albuginea surround in the penis, and what is it's relation to the t. albuginea in the testicle? |
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Term
| the tunica albuginea in the penis is totally separate from the testicular one, it surrounds the corpus cavernosum(crus) and the corpus spongiosum(bulb) |
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Definition
| what does the tunica albuginea surround in the penis, and what is it's relation to the t. albuginea in the testicle? |
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Term
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Definition
| what muscle lies superficial to the crus of the penis? |
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Term
| Buck's fascia(deep fascia of penis) |
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Definition
| what layer of fascia covers the erectile tissues, the dorsal nerve of the penis, and the dorsal artery? |
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Term
| the superficial fascia of the penis, the external pudendal arteries are just lateral to the vein |
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Definition
| what fascia covers the superficial dorsal vein of the penis? what else is just beneath this fascia? |
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Term
| the femoral artery below the inguinal ligament |
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Definition
| what is the external pudendal artery a branch of? |
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Term
| the deep dorsal vein is midline with the dorsal artery just lateral to it and the dorsal nerve of the penis the most lateral |
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Definition
| just deep to Buck's fascia are some vessels and nerves, name them, and which is medial vs lateral |
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Term
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Definition
| what layer is deep to the dorsal artery and nerve of the penis? |
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Term
| found just deep to Buck's fascia are the circumflex veins |
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Definition
| what vein drains the erectile tissue to the deep dorsal vein? what layer is it in? |
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Term
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Definition
| what is the superficial fascia of the penis continuous with? |
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Term
| the deep artery of the penis |
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Definition
| what artery leaks blood into the erectile tissue during erection? |
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Term
| the circumflex veins have a "valve" that is pinched shut against the t. albuginea when the penis expands, so blood flows in, but can't get out |
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Definition
| how does blood in the erectile tissue stay in there for erections? |
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Term
| decreased blood flow to the penis |
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Definition
| what opens the circumflex veins back up after erection? |
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