Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
32 Cards in this Set
- Front
- Back
|
follicular phase |
6 to 14 days fsh levels begin to rise follicle secrets estrogen estrogen causes the lining to thicken |
|
|
ovulation |
day 14 high estrogen levels cause anterior pituitary to decrease fsh production and increase lh production high levels in lh cause the follicle to rupture releasing the egg from one follicle |
|
|
luteal phase |
14 days lh causes empty follicle to fill with cells and becomes the corpus letum corpus leutm secrets progesterone at high levels which keeps the endometruim in a prepared state fur egg attachment |
|
|
menstruation |
3 to 7 days lh levels drop and corpus luteum breaks down progesterone levels drop uterine lining breaks down estrogen levels are very low and fsh levels start to rise again 3 to 4 days mucus lining unfertilized egg and blood pass through the cervix |
|
|
corpus letum |
lh causes empty follicle to fill with cells and that becomes the corpus letum corpus letum secrets progesterone |
|
|
estrogen |
causes uterine lining to thicken during menstruation estrogen is very low |
|
|
progesterone |
corpus letum secrets progesterone progesterone levels drop during menstruation |
|
|
endometruim |
where the egg goes if it is fertilized to grow a baby |
|
|
semen |
what sperm swims in to fertile the egg, how it travels to the egg because the vagina is acidic |
|
|
vas deferens |
takes sperm from epididymis to urethra |
|
|
epididymis |
sperm matures |
|
|
lh |
causes the follicle to rupture, releasing the egg from one follicle |
|
|
sister chromatids |
identical sets of copied chromosome pair 2 siser chromatids in one chromosome |
|
|
homologous chromosomes |
same genes and structure but different allign meant of those small genes |
|
|
centrioles |
moves chromosomes to the poles |
|
|
centromeres |
holds chromosomes together |
|
|
DNA during interphase |
copies in interphase during the S phase |
|
|
% of time in mitosis |
30 |
|
|
% of time in interphase |
70 |
|
|
gamestes |
sex cells, haploid, come from gonads |
|
|
somatic |
any cell of the body except the sperm and the egg. The carry 2 sets of chromosomes for each one because of the parent cells. they are diploid |
|
|
mitosis |
division of the nucleus |
|
|
cytokinesis |
division of cytoplasm |
|
|
independent assortment |
describes how different genes independently separate from 1 another when reproductive cells develop. occurs during meiosis in Eukaryotas that way cells are not always the same |
|
|
random fertilization |
a random sperm fertilizes between 4 different sperm and a random egg choose to be fertilized because it is that bigger egg |
|
|
crossing over |
crossing over is the 2 opposite sister chromatids mixing to create a variation in genes to increase survival |
|
|
similarties in mitosis and meiosis |
both deal with cell division |
|
|
differences in mitosis and meiosis |
meiosis has 2 stages, deals with haploid cells mitosis has one stage and then starts and ends with diploid cells |
|
|
ovum vs polar bodies |
cytoplasm divided un evenly in oogenesis |
|
|
g1 phase |
cell grows in size and synthesis RNA and protein for DNA synthesis |
|
|
g2 |
has rapid cell groth and protein synthesis to ready its self for mitosis |
|
|
S phase |
to produce 2 similar daughter cells and and DNA replication occurs |
