reproductive a&p chapter 8 Flashcards
testes
main sex gland lives in the scrotum
the outside body keeps sperm cooler
scrotum
covered in reguae (sensitive)
penis
erectile organ
gets engorged with blood
spermatic cord
attaches testes to body
seminiferous tubules
sperm produced and collected and transported to the epididymis
vas deferens
musclar tube carries tube ejaculation duct
prostate gland
walnut structure encapsulates urthrea
produces milky secretion from semen
bulbourethral gland
secretion for semen peesize gland. secretes mucose fluid
spermatogenesis
production of sperm
- begins around 16
- constantly being produced
sperm maturation occurs in approxiamtely
70 days
normal sperm count
100 million
sterility
less than 20 million
age related changes- male
- scrotum becomes more pendulous
- prostate becomes enlarged: urinary retention
- decreased sperm production: testosterone and progesterone levels decrease
- delayed arousal- after age 60 the sexual response time takes longer
- impotence: side effect from various medication & vascular problems
vagina
muscular tube 3 in length connects ex organs
uterus
upper part (fundus): curved central region (body): fetus grows cervix: dilates for delivery
fallopian tubes
don’t attach to the ovary
Fabbri go over ovaries
ovaries
ova all present at birth
400,000 in each
some dont mature
boney pelvis and pelvic floor
work together to support pelvic organs
mammary glands
fibrous/adipose tissue
lactation
ovarian cycle two phase
follicular phase
luteal phase
follicular phase
- day 1-14
- fsh and lh stimulate ova
- estrogen peaks
luteal phase
- day 15-28
- increase blood flow to uterus
- shedding of linning
+ implantation/fertilization has not occured
+ known as menstural cycle
sexual maturation
puberty (9-17)
- pelvis widens
- breast develop
- axillary/pubic hair
menarche
- puberty is complete
- onset of the menstrual cycle
age-related changes in females
menopause
- meses has ceased > 12 months