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42 Cards in this Set

  • Front
  • Back
Functional unit of the male reproductive system
Sperm head
contains the acrosomal cap and nucelus
Acrosomal cap
filled with hyaluronidase which is an enzyme that breaks down the hyaluronic acid shell around the egg
Function of the male reproductive system
to get the chromosomes to the egg
sperm neck
contains mitochondria to create energy to move the tail of the sperm
the tail of the sperm, the sperm cell is the only cell with a flagellum
production of sperm which takes places in the testis because the testis are 1.10 degrees C cooler than normal body temperature. It takes about 9 weeks and the flagellum are non-motile at this point
located in the scrotum and normally descend through the inguinal canal
hidden gametes- when the testes dont show
Seminiferous tubules
1/2mile, sperm moves through these tubes until they reach the epididymis
Where the sperm mature this then leads to the vas deferns
Vas deferns
Carries sperm through to the urthera
a bag that contains the testes
Dartos muscle
the wall of the scrotum-gives it a krinkly look
Spermatic Cord
1.Sheath of Irregular desnse connective tissue
B)arteries and veins
C)Vas deferns
D)cremaster muscle
Cremaster muscle
when these muscles contract they bring the testes close to the wall of the body so they can get warm
Cremasteric reflex
rubbing the thigh will pull the testes closer to the wall, doctors will do this to look for spinal nerve damage
Ejaculatory Duct
where vas deferns hoin the seminal vessicles
Seminal Vessicles
produces semen, accessory gland, produces 35% of seminal fluid and it contains fructose which gives the sperm energy
conducts both urine and reproductive fluids
Prostate Gland
accessory organ that produces 55% of semen, It contains bicarbonate ions that will buffer the pH. It can enlarge which can squeeze the urthera which can cause urine problems
Prostate cancer
man becomes incontant (cant control urine) and they cant produce an erection
Bulbourtheral (coupers) gland
thick sticky alakline fluid which buffers pH in the rest of the semen
2-5mL per ejaculation
20-100million sperm
mix of gandlar secretions
contains enzymes, nutrients and ions
protiase-dissolves mucus secretions in vagina
seminal plasmin protein "antibacterial" that comes from the prostate gland
semen clots a few minutes after ejaculation, then liquifies-may function as a plug to the uterus and helps to avoid UTI's
tubular organ, dorsal blood vessels and nerves
3 parts of the penis
3.glans penis
to attach penis to wall of body cavity
shaft, 3 columns of erectile tssue and contains a lot of spaces "3D maze" made of smooth muscle and connective tissue
Erectile tissue of the penis
2 corpora caveraosa-dorsal side
1 corpora spongiosum-ventral side, surrounds urthera, passes to the end of the penis and forms the glans penis
Glans penis
erectile tissue, contains the urtheral meatus, covered with foreskin, surdace is mucus membranes
Prepuce-normal epithelial tissue surface on inside its a mucus membrane and it helps with physical protection
60-80% of the removal of foreskin in the US it contains 40-60% of nerve endings
AMA Pediatric Association
1978 there is no reason for circumsision unless conditions exist
the amount of blood in erectile tissue is greater than the amount going out
you loose an erection if the amount of blood going out is greater than the amount of blood going in
a sustain erection that lasts more than 3 or 4 houts this is a problem because you can loose oxygen in the blood and the tissues can start to die, also the blood can start to collaglate
comes from the hypothalamus and causes it to release FSH and LH
causes spermatogensis
produces testosterone
Inhibits the production of FSH
1.mature sperm
2.maintains accessory organs
3. Helps determine secondary sex characteristics
4.stimulates metabolism-slightly high than females
5.Influences brain development
sex behaviors
sex drives
What happens with high levels of testosterone
stops the production of FSH which stops the production of LH so no more testosterone is produced