L11 Male Reproductive System Flashcards
Main function of male reproductive system is to …
Ejaculate sperm to produce offspring
What protects the urinary, digestive and male reproductive systems?
- Protected anteriorly by the pubic symphysis
- Laterally by the pelvic bones
- Posterity by the sacrum and coccyx bone
True or False: Some of the male reproductive system (seminal vesicle, ejaculatory duct, prostate gland upper part of urethra) is internal (within the pelvic cavity in the hypogastric region).
True
True or False: Some of the male reproductive system (penis, lower part of the urethra and testes) is external.
True
The penis is made up of what two soft tissues?
- Corpus cavernosum
- Corpus spongiosum
At the tip of the penis is the foreskin and the opening is called the?
Urethra
What are “gonads”?
Testes
- singular is ‘testicle’
Where are the “gonads” contained?
In the scrotum
- sac of skin
What is the function of the “gonads”?
Produce gametes and hormones
What are “gametes”?
‘Sex cells’ known as spermatozoa
What is “spermatozoa”?
Sex cells aka Gametes
How are gametes (spermatozoa, sex cells) generated?
Meiosis to get 23 chromosomes from each parent
What is “testosterone”?
Main hormone that aids in gamete production & secondary sex characteristics
- (pubic hair, axillary hair, chest hair, facial hair, voice deepening, increased size of testes and penis)
When is ‘spermatozoa’ or sperm produced?
At puberty in epididymis
- located on top of the testes
What does the “epididymis” connect to?
Vas deferens
Once sperm leave the testes, through the vas deferens, it travels up the pathway and then what?
Mixes with fluid from the seminal vesicle, the ejaculatory duct and the bulbourethral or Cowpers gland
Where does urine leave the body?
Through urethra at the tip of penis
- like urine
The testes are a paired organ found inside the scrotum and produce sperm which is the …
Male gamete
Once puberty happens gametes start to …
Produce spermatozoa
True or False: One of the interesting differences between the male and female reproductive systems is that sperm is not produced in males until puberty, but baby girls are born with all of the egg cells that are needed throughout life.
True
What hormone helps with sperm development?
Testosterone
The testicles also secrete a cell called …
Sertoli cell
What does the “Sertoli cell”. do?
Helper cell that helps testosterone develop and helps sperm grow to other hormones that you should be familiar with
What two hormones are responsible for both female and male reproduction?
- follicle-stimulating hormone (FSH)
- luteinizing hormone (LH)
What does the “follicle-stimulating hormone” (FSH) do?
Stimulates sperm production
What does the “luteinizing hormone” (LH) do?
Helps stimulate testosterone production
Gametes are made by the process called?
Meiosis
What is “meiosis”?
Halving the number of chromosomes, during conception
- we get 23 chromosomes from mom and 23 chromosomes from dad
What is “mitosis”?
Cell division that happens almost everywhere in the body except the reproductive system
True or False: When boys go through puberty, their sex hormones, primarily testosterone are going to not only aid in sperm production, but also with puberty.
True
True or False: The main characteristics of the male reproductive system include voice deepening, chest hair development, axillary hair development, pubic hair development, the testicles, and the penis gets bigger and sperm being produced.
True
Where are ‘sperm cells’ are stored and formed?
Epididymis
How much sperm do males make per second?
1500 per second
True or False: During ejaculation, your body DOES NOT make sperm all over again
False
- does
What is “ejaculation”?
Medical term for releasing sperm from the testicle out of the body through the penis.
Where does sperm formation inside the epididymis travels up though the what?
Vas Deferens
aka ‘Spermatic Cord’
Sperm path :
- Sperm formation in the epididymis travels up through the vas deferens which is sometimes called the spermatic cord
- Passes through the ejaculatory duct passes the prostate gland
- Exits the penis through the urethra
What does “coitus” mean?
Intercourse
What does “erection” mean?
Vasodilation of the penis
What does “circumcision” mean?
Is the removal of the foreskin of the penis, which is a flap of skin that covers over top of the penis
- Sometimes circumcision is done for religious reasons and sometimes it’s a cosmetic preference.
- Sometimes insurance companies pay for this procedure, and sometimes they don’t.
It used to be thought that with that foreskin boys were at increased risk for urinary tract infections because sometimes that skin would flap over the opening. But we know now, based on the literature that there is zero increased risk of UTIs if the foreskin remains, so a lot of insurance companies now say there’s no need to actually remove it.
Sometimes you will pay out of pocket for that.
What is “semen”?
Thick whitish fluid that sperm is contained in
- it can also be kind of a tinged yellow that contain sperm.
What are “spermatozoa”?
Sperm cells
Semen contains fluid from what 3 areas?
- Seminal vesicle
- Prostate gland
- Cowper’s gland
True or False: Ejaculation is the release out of the body of semen or sperm and the fluid from these 3 areas.
True
What is the purpose of semen?
To nourish the sperm and transport them out of the body
True or False: Sperm neutralize the acidity of the vaginal canal and this is really important for conception if somebody is trying to get pregnant. Some women have a vaginal canal that is highly acidic and the acid can kill the sperm, so semen actually neutralizes that acidity
True
“testo” means ..
Testicle
“orchio” means …
Testis
“oscheo” means …
Scrotum
“semin” means …
Semen
“spermy” or “spermato” means ..
Semen spermatozoa
“epididymo” means …
Epididymis
“vesiculo” means …
Seminal vesicle
“prostato” means …
Prostate