Term
| What is a sac of skin with an internal septum that creates a compartment for each testicle? |
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Definition
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Term
| The scrotum has for temperature regulation. |
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Definition
| The scrotum has dartos muscle for temperature regulation. |
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Term
| If temperature of the scrotum is the or wrinkles scrotal skin to conserve . |
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Definition
| If temperature of the scrotum is COLD the dartos muscle CONTRACTS or wrinkles scrotal skin to conserve heat. |
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Term
| If the temperature is hot the dartos muscle and smoothes out the to heat. |
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Definition
| If the temperature is hot the dartos muscle relaxes and smoothes out the scrotal skin to release heat. |
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Term
| - the peritoneum-derived outer layer (associated with scrotal skin) |
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Definition
| tunica vaginalis - the peritoneum-derived OUTER layer (associated with scrotal skin) |
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Term
| - inner fibrous capsule has that divide the testes into containing . |
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Definition
| Tunica Albuginea - inner fibrous capsule has inner septa that divide the testes into lobules containing seminiferous tubules. |
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Term
| Where is the specific site of sperm production? |
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Definition
| lobules containing seminiferous tubules |
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Term
| Between the tubules of the tunica albuginea are interstitial which is the specific site of production. |
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Definition
| Between the tubules of the tunica albuginea are interstitial cells of leydig which is the specific site of testosterone production. |
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Term
The testes also have a muscle.
If temperature is cold it , the testicles toward the body.
If temperature is warm it , letting the testicles away from the body. |
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Definition
The testes also have a cremaster muscle.
If temperature is cold it contracts, elevating the testicles toward the body.
If temperature is warm it relaxes, letting the testicles descend away from the body. |
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Term
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Definition
| male copulatory organ designed to deliver sperm to the female tract |
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Term
The penis is attached to the which is a free
which ends at the , which is the enlarged tip of the penis with a majority of the
. |
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Definition
| The penis is attached to the root which is a free shaft which ends at the glans penis, which is the enlarged tip of the penis with a majority of the sensory receptors. |
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Term
| What is the inside of the penis made up of? |
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Definition
| spongy urethra, erectile tissue: corpus spongiosum, corpus cavernosum and vascular spaces |
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Term
Which type of tissue is found medial?
Which type of tissue is paired, lateral? |
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Definition
corpus spongiosum
corpus cavernosum |
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Term
| What are the vascular spaces found in the erectile tissue of the penis? |
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Definition
within corpus tissue,
fill with blood during sexual excitement, making the penis rigid (i.e. erection) |
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Term
What is the corpus spongiosum and corpus cavernosum?
(picture) |
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Definition
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Term
| What is the epididymis made up of? |
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Definition
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Term
What does the epididymus look like?
1. head
2. body
3. tail |
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Definition
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Term
Which part of the epididymus contains the immature sperm?
mature sperm?
maturing sperm? |
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Definition
immature - head
mature - tail
maturing - body |
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Term
The Vas deferens runs into the cavity as part of the cord
then loops over the , and over the posterior wall of the and the terminal end is the .
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Definition
The Vas deferens runs superiorly into the pelvic cavity as part of the spermatic cord
then loops over the ureter, and descends over the posterior wall of the bladder and the terminal end is the ampula. |
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Term
| Where does the Vas deferns run? |
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Definition
The Vas deferens runs superiorly into the pelvic cavity as part of the spermatic cord
then loops over the ureter, and descends over the posterior wall of the bladder and the terminal end is the ampula.
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Term
| At the terminal end or the vas deferens joins with the to form the which empties and into the at . |
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Definition
| At the terminal end or ampula the vas deferens joins with the seminal vesicle to form the ejaculatory duct which empties sperm and fluid into the urethra at ejaculation. |
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Term
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Definition
| carries semen to the external environment |
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Term
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Definition
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Term
| What are the three accessory glands? |
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Definition
| seminiferous tubules, prostate gland, bulbourethral gland |
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Term
Where are the seminiferous tubules located?
there secretions make up how much of the seminal volume? |
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Definition
located on the posterior wall of the BLADDER
make up 60% of seminal volume |
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Term
| What are the secretions of the seminiferous tubule and what do the secretions contain? |
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Definition
| the secretions are an alkaline fluid that contain: fructose, ascorbic acid, prostaglandins, and coagulating enzymes |
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Term
What is fructose used for?
absobic acid?
prostalglandins?
coagulating enzymes?
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Definition
fructose - for energy
absorbic acid - for nutrients
prostalglandins - thin out cervical mucus
coagulating enzymes - to thicken up to stay in the female cavity |
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Term
| The seminiferous tubules join with the to form the . |
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Definition
| The seminiferous tubules join with the ampula to for the ejaculatory duct. |
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Term
| The prostate gland is located where? |
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Definition
| encircles the urethra inferior to the bladder. |
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Term
The secretions of the prostate gland make up of seminal volume.
The secretions help to "activate" the ; prepares the sperm to pierce the (~ 6-8 hours) |
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Definition
The secretions of the prostate gland make up 30% of the seminal volume.
The secretions help to "activte" the sperm; prepares the sperm to pierce the oocyte. |
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Term
| Where is the bulbourethral gland located? |
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Definition
| inferior to the prostate gland |
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Term
| What does the bulbourethral gland do? |
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Definition
produces a mucous secretion that:
- neutralizes urine traces in the urethra
- lubricates the female tract for copulation
- known as pre-ejaculation
-may contain sperm (if it has not been long since the last ejaculation |
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Term
| What are the 4 things the mucous secretion does? |
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Definition
| neutralizes, lubricates, pre-ejaculates, may contain sperm |
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Term
The semen is a mixture of and and it contains , an
protein. |
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Definition
| The semen is a mixture of sperm and accessory gland secretions and it contains seminal plasmin, an antimicrobial protein. |
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Term
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Definition
| engorgement of erectile tissue with blood |
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Term
| Erection - during arousal the . . . triggers blood vessels serving the penis to , in response to release from penile endothelial cells. |
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Definition
| Erection - during arousal the parasympathetic nervous system triggers blood vessels serving the penis to dilate, in response to nitric oxide release from penile endothelial cells. |
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Term
Expansion of the tissue traps blood and maintains erection.
Expansion of the tissue keeps the urethra open during ejaculation. |
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Definition
Expansion of the cavernosa tissue traps blood and maintains erection.
Expansion of the sponglosum tissue keeps the urethra OPEN during ejaculation. |
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Term
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Definition
| propulsion of semen from the male duct system |
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Term
What happens if sexual stimulation continues?
which triggers . |
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Definition
| the parasympathetic initiation of the erection reaches a "critical point" which triggers spinal reflex |
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Term
| The spinal reflex causes a massive firing of innervating the region. |
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Definition
| The spinal reflex causes a massive firing of sympathetic fibers innervating the genital region. |
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Term
| What happens after the massive firing of sympathetic fibers? |
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Definition
| primary and secondary organs contract, emptying sperm and fluid into the urethra, bladder sphincter muscles contract, preventing urination, penile muscles contract, forcefully expelling semen out of the urethra |
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Term
| What is spermatogenesis and where does it occur? |
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Definition
| Spermatogenesis is the production of male sex cell (gamete/sperm) and it occurs in the seminiferous tubules |
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Term
| The process of spermatogenesis begins at and continues . million sperm are made per day. |
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Definition
| The process of spermatogenesis begins at puberty and continues throughout life. 400 million sperm are made per day. |
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