The Male Reproductive System
_____________ is the production of a new individual for the propagation of the species.
Reproduction
Reproduction slumbers until ___________
puberty
___________ ___________ organs, or Gonads (________) are called _______ in males and __________ in female.
Gonads are responsable for the production of _________, (or _________) and ___________.
Gonads have both __________ and ____________ functions
___________ function refers to ducts for production of and transport of gametes
Exocrine
Endocrine function refers to secretion of _________ __________
Female sex hormones are
Male sex hormone is
Testosterone
The Haploid reproductive sex cells from :
The Male Reproductive System role is to manufacture male gametes called ________ and deliver them to the ________ reproductive tract. where __________ can occur.
The sperm-producing ______ or male _______ (seed), lie within the ___________.
___________ , which means "pouch" is a sack of ______ and _______ ________ that hangs outside the abdominopelvic cavity at the root of the penis.
Scrotum is covered with _______ and contains paired oval __________
Scrotum is formed of 3 main parts:
The changes of scrotal surface area help maintain a fairly constant intrascrotal temperature and reflect the activity of two sets of muscles called __________, which are subcutaneous muscle of the scrotum which are also a part of the ___________. This muscle causes the skin of the scrotum to wrinkle.
_____________ muscle surrounds each of the spermatic cords and testicles. It is a continuation of the internal oblique muscle.
_____________ muscle functions in controlling the temperature of the testes, which need to be kept at a temperature of 3 degrees ______
For maximum production of _________, Cremaster Muscle raises the testes during sexual arousal and upon exposure to the cold, and by lowering the testes away from the body when they get to warm.
Sperm
Tunica _________ is an out-pocketing of the parietal peritoneum which becomes a serous covering of the testicle.
Vaginalis
Tunica ___________ is a white fibrous capsule which covers each testicle and invaginates to form ________ walls which divide the testes into many compartments called ___________ (about _____ to _____ of them).
Lobules contain _________ tubules which produce ________ by spermatogenesis.
Excess sperm would cause an _________ from the immune system
attack
_________ cells form a smooth muscle-like layer (3 to 5) which contract. _______ cells may help to squeeze sperm and testicular fluids through the tubules and out of the testes
Lying in the soft connective tissue surrounding the seminiferous tubules are the ___________ _________ cells, also known (_______ cells). These cells produce androgens, also known as __________, which is the male sex hormone.
Undescended testes is a problem called _________ which could cause cancer.
cryptorchidism
SPERM
All sperm are _________, which means they contain half the full chromosome number.
Sperm are produced by _________ sex cell division.
Diploid cells account _______ chromosomes (also known as __________ chromosomes).
Haploid cells account ________ chromosomes (also known as __________ chromosomes).
It takes ________ days to produce sperm from.
Sperm consist of three main part which will subdivide:
Midpiece contains ___________ which use the ______ fructose to produce ______ for locomotion
Tail is a __________ used to propel the ______ along its way.
The tails of ______ require to _____ to _____ days for the tail to mature for motility.
Sperm are ejaculated from the _____________.
Once stimulated an ____________ is caused by the _______ muscles of the epididymis contracts, expelling sperm into the next segment.
To continue, the _________ _________, also known as Van Deferens, a tubule which carries sperm ______ from the epididymis toward the male _________.
Ductus Deferens means __________
Some men opt to take full responsability for birth control by having a ____________ which means "cut the vas". This procedure the physician makes a small incision into the scrotum and then cuts through and ligates or cauterizes each ____________.
Ductus Deferense goes upward through the ________ Cord, which is a connective tissue sheath enclosing :
Cremaster muscle is made of :
Skeletal muscle
Spermatic cord travels upward through the __________ _______, which is a hole in the abdominal wall through which the spermatic cord passes. It is a weak spot in the _______ of the __________ which can tear open causing an _____________________-
The ductus deferens joins a duct from _________ vessicle and enters the prostate as the _____________
An approximate 8"inches duct in length which empties the urinary bladder is called:___________
It transports urine and semen (at different times), so it serves both _________ and ___________ systems in the next three regions
The portion of Urethra that passes through the prostate, and is about 1" in length, is called _________
Prostatic Urethra
___________ urethra is aprox. .5" in length as it passes through the urogenital diaphragm.
It is also known as
__________ urethra is approx. 6" in length, and passes through the corpus spongiosum
Spongy urethra
_______________ is an enlargement of the distal end of the urethra in the area of the glans penis.
Navicular Fossa
_____________ ____________ _________ is the distal opening of the urethra.
External Urethral Orifice
Accessory Sex Glands secrete most of the ________ portion of __________
Accessory Sex Glands in males are:
_________________ lie on the posterior surface of the urinary bladder; they secrete a viscous, ___________ (pH) fluid rich in fructose.
The alkalinity helps to __________ the acidity of the _______ reproductive tract.
The fructose is used by the mitochondria of the sperm to produce ________ to power the ____________.
It secretes a ______, slightly ______ fluid containing citric acid, and several ________ enzymes to coagulate the ________ shortly after ejaculation.
It produces ____% of semen volume.
_____________________ Gland is about the size of a ____; they secrete an _____________ fluid to neutralize the acidity of the male ________, and mucus which ___________ the urethra as well as serving as a lubricant during __________ intercourse. Procudes ___% of semen vol.
SEMEN Is a mixture of ________ and the secretions from the _________ _______.
It is a volume of about ____ to ___ ml, with _____ to _____ million sperm per ml
When the sperm count bring less than 20 million/ml sperm, it is considered _________
Steril
Sterility depend on:
________________ _________ is a natural antibiotic which destroys bacteria in the reproductive tract.
PENIS is the mail _________ organ. Functions in ________ and ___________.
Sex reproductive organs known as ___________ are not copulatory organs.
Gonads
_______ ___________ are two cylinders dorsolateral of tissue (at the top) of the penis.
Corpus cavernosa
_______ ___________ is one cylinder midventral of tissue, at the lower part of penis
Corpus Spongiosum
2- The __________ which drain blood from these two cylinders undergo _____________ and restrict blood from leaving the two cylinders
The result of these two cylinders filling with blood is called an ______________
erection
The corpus ____________ does not undergo this process due to the fact that it would __________ the urethra and not allow passage of the __________.
The propulsion of the semen from the urethra to the exterior is called
ejaculation
_________ _________ or acorn, is the head of the penis.
Glans Penis
Foresink or __________ is a loose fitting flap of skin covering the glans
Prepuce
This flap of skin is remove during a process called
Circumcision