Term
| Which structures produce the fluid secretions that make up semen? |
|
Definition
- Cowper's gland
- Seminal vesicle
- Prostate gland
|
|
|
Term
| Describe the male negative feedback look |
|
Definition
hypothalamus -> GnRH -> anterior pituitary --->LH -> interstitial cells > testosterone ---> FSH -> sertoli cels > sperm prod'n |
|
|
Term
| what is the 'cap' on the head of the sperm called? |
|
Definition
|
|
Term
| What is the path of the sperm out of penis |
|
Definition
- testes (sertoli cells/seminiferous tubules)
- epididymis
- vas deferens
- seminal vesicle (+fructose&prostiglandins)
- prostate gland (+alkali buffers)
cowper's gland (+mucous) - urethra
- OUT
|
|
|
Term
| what is the size of a sperm cell compared to that of an egg cell? |
|
Definition
- sperm: ~50 micrometers
- egg: ~100 micrometers
|
|
|
Term
what are the energy reserves of a sperm cell compared to that of an egg cell?
|
|
Definition
- sperm: mitochondria process fructose
- egg: endometrium when implanted
|
|
|
Term
what are the mitochondria of a sperm cell compared to that of an egg cell?
|
|
Definition
- sperm: middle piece have ~50-100 mito.
- egg: cytoplasm has ~140,000 mito.
|
|
|
Term
what are the numbers produced of a sperm cell compared to that of an egg cell?
|
|
Definition
- sperm: continuously produced, ~300-500 mill/day
- egg: @puberty ~300,000... 1 egg released ea. mo.
|
|
|
Term
what is the motility of a sperm cell compared to that of an egg cell?
|
|
Definition
- sperm: motile w/ flagellum
- egg: not motile
|
|
|
Term
what are the outter structures of a sperm cell compared to that of an egg cell?
|
|
Definition
- sperm: head has a cap (acrosome) which contains enzymes that help the sperm enter the egg
- egg: covered by specialized coating which in most cases can only be penetrated by sperm of the same species
|
|
|
Term
| describe the female negative feedback loop |
|
Definition
- hypothalamus
- GnRH
- Anterior pituitary
- LH -> corpus luteum (progesterone)
-> follicle - FSH -> growing follicle (estrogen)
|
|
|
Term
|
Definition
| the release of the ovum from the ovaries |
|
|
Term
|
Definition
| the emission of seminal fluid |
|
|
Term
|
Definition
| the union of the male and female gametes (egg + sperm) |
|
|
Term
|
Definition
| the period of time when menstruation stops |
|
|
Term
|
Definition
| the attatchment of the embryo to the endometrium |
|
|
Term
|
Definition
| the periodic discharge of blood from the uterus |
|
|
Term
| where does ovulation occur |
|
Definition
|
|
Term
| where does fertilization occur |
|
Definition
|
|
Term
| where does implantation occur |
|
Definition
|
|
Term
| where does spermatogenesis occur |
|
Definition
|
|
Term
|
Definition
| an organism after about 8 weeks of development - had organs andthe beginnings of internal bone structure |
|
|
Term
|
Definition
| female (haploid) gamete cell |
|
|
Term
|
Definition
| male (haploid) gamete cell |
|
|
Term
|
Definition
|
|
Term
|
Definition
| an organism in the early stages of development before birth |
|
|
Term
|
Definition
| a fluid-filled tissue of the ovary in which the egg develops |
|
|
Term
| what is the corpus luteum |
|
Definition
| remaining follicle cells after ovulation - secrete progesterone |
|
|
Term
| what occurs in the flow phase |
|
Definition
|
|
Term
| what occurs during the follicular phase of the menstrual cycle |
|
Definition
follicles develop into ovaries endometrium is restored |
|
|
Term
| what occurs during the ovulation phase of the the menstrual cycle |
|
Definition
| oocyte bursts from the ovary |
|
|
Term
| what occurs during the luteal phase of the menstrual cycle |
|
Definition
| corpus luteum forms and endometrium thickens |
|
|
Term
| what are the 4 phases of the menstrual cycle |
|
Definition
flow phase follicular phase ovulation luteal |
|
|
Term
what stimulates estrogens release? where is it released from? what does it do? |
|
Definition
- FSH usually stimulates its release
- released from follicle before stimulation
corpus luteum after ovulation - it stimulates uterine lining growth
|
|
|
Term
What stimulates the release of progesterone?
where is released from? what does it do? |
|
Definition
- LH stimulates it
- released from corpus luteum after ovulation
- maintains uterine lining growth
|
|
|
Term
| what are the stages of development in the ovary |
|
Definition
- primary oocyte within follicle
- growing follicle (releases estro.)
- mature follicle
- ovulation
- corpus luteum (releases progest. [+estro.])
- degenerating corpus luteum
|
|
|
