BIO 233 FINAL

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What is the most mature follicle?: GRAAFIAN
Spermatozoa survive up to about, how many hours in a female?: 48 hours
Which muscle forms part of the spermatic cord?: Cremaster muscle
___________ stimulates _________ to secrete testosterone?: LH/ Leydig cells
The midpiece of male spermatozoa contains?: Mitochondria
Which part of the male accessory glands secrete a milky fluid that is rich in fructos and clotting proteins?: Seminal Vesicles
Inhibin secreted by Sertoli cells has negative feedback and lowers FSH? (TRUE OR FALSE): TRUE
Testosterone does all of the below except? A)stimulates male sex organ development B)Stimulates development of male secondary sex char. C) increase libido D) Stimulates leydig cells: D) Leydig cells produce testosterone.
The pH. of semen is?: 7.2 - 7.6
What chemical is released by parasympathetics during erection?: Nitic oxide
What is a symptom of benign prostatic hyperplasia?: Decrease in urine stream, hesitancy
The primary oocyte has ___ chromosomes?: 46
The state (stage) of the egg in primordial follicles is?: prophase meiosis I
The epithelial cells in a primary follicle are also called?: granulosa cells
If twenty primary follicles form per month, you would expect that 40 secondary follicles for each month? (true or false): False
Cervical mucus becomes thin and elastic at about 7 and 8 days of the menstrual cycle? (true and false): False, it's midcycle
The layer of the endometrium that is shed each months is the?: stratum functionalis
pelvic inflammatory disease may spread up into the uterin tubes, causing permenent scarring? (true or false): TRUE
A major factor that increases the risk of breast cancer is?: a long length of time between onset of menses and the first pregnancy
declining of which hormone, constricts the spiral arterioles in the endometrium of menstration?: declining progesterone
Which hormone is the main factor that stimulates the corpus luteum during the second half of the cycle?: LH
Which level of estrogen has postive feedback on LH levels?: high levels of estrogen
the highest estrogen levels of a typical menstrual cycle occur?: just after ovulation
In a postmenopausal woman, adipose tissue converts androstenedione to estrone, which is a major source of her circulating estrogens. Ovarian secretion of estradiol is minimal. (true or false): TRUE
IF fertilization occurs, _____ secreted during early pregnancy stimulates the corupus luteum to produce _______ & _______?: hCG / estrogen & progesterone
what is the name for the top, dome shaped region of the uterus?: fundus
ovarian pain of ovulation is called?: Mittelschmerz
which hormone causes salt and water retention in females, increased motility of the fallopian tubes, and development of female secondary sex characteristics?: estrogen
uterine cycles, days 6-13 are called?: proliferative phase
which hormone changes the endometrium from a proliferativing structure to a secretory structure?: progesterone
in primordial follicles, what phase is the primary oocyte stuck in for many years?: prophse meiosis I
which female sex hormone is given to postmenopausal females to decrease the risk of osteoporosis?: estrogen
if timed from the first (1) day of the last menstrual period, the average normal pregnancy averages _____ weeks?: 40
the process by which ejaculated spermatozoa actually become capable of fertilization in the female is called?: Capacitation
the early sources of estrogen and progesterone during pregnancy are?: corpus luteum
Once a spermatozoa penetrates an egg, the egg normally becomes impenetrable by other spermatozoa? (true or false): true
the embryonic period lasts through week ____ of development?: 8
what secrete hCG?: chorion
a fetus breathing amniotic fluid in and out is? a) a sign of fetal distress or b) normal?: b) normal
there are normally _______ umbilical arterie(s)?: 2
what is the main source of a woman's estrogen and progesterone during the last few months of pregnancy?: placenta
what does not cross the placenta?: maternal IgM antibody (too large)
which hormone does not stimulate maintenance of the endometrium and/or breast development during pregnancy?: relaxin
what is the name of the condition during pregnancy that results in seizures and coma?: eclampsia
what happens to cardiac output and heart rate, during pregnancy?: increases by 20 to 30%, and hr increases by 10 to 15%
which hormone causes increases synthesis of oxytocin receptors in the myometrium?: estrogen
which hormone antagonizes the lactating effects of prolactin late in pregnancy?: oxytocin
The cervic does not dilate to 10 cm., until the end of the second stage of labor? (true or false): false, dilates to 10cm. at the end of the first stage, the end of the second stage the baby has been born.
which stage involves actual delivery of the placenta?: third
which hormone cause decreased cell glucose uptake and increased lipolysis in the mother?: hCS (human chorionic somatomammatropin)
fetuses often have enough surfactant for survival in the outside world by the end of week?: 28, about 7 months
the hormone that causes milk letdown is?: oxytocin
the cloudy fluid secreted during the first three days of nursing is called?: colostrum
if you are talking about the chromosomes in an individual, they are paired: you have 23 pairs... one member of each pair came from your mother, the other from your father. the chromosomes of a pair that contain genes are the same traits are called?: homologous
say B=brown eyes and b=blue eyes. say two heterozygous parents mate. the woman gets pregnant. what is the probability that she will have homozygous dominant child (BB)?: 1/4
which law of inheritance is the principle of independent assortment?: second
aging may cause damage to microtubules involved in separation of chromosomes during meisosis; the result may be trisomy 21. (true or false): true
which syndrome is 47, XXY?: Klinefelters
which syndrome is XO?: Turners
translocation from part of chromosome 22 to 9 may result in ?: Leukemia
which genetic disorder is autosomal recessive, and is controlled by dietary restriction of a certain amino acid?: phenylketonuria
if 45, X produces Turner syndrome and 47 XXY produces Klinefelter syndrome, which statment is true regarding the number of sex chromosomes responsible for producing males & females?: one Y chromosome is necessary to produce a male
a cell that has one or more chromosome of a set added or deleted is called?: aneuploid
what is the genotype of someone with sickle trait?: HbAHbS
which condition promotes sickling of red cells?: low oxygen
dartos and cremaster muscle will, _____________ in response to low temperatures?: contract
which of the following cells create the blood-teste barrier?: sertoli cells
one primary spermatocyte will create _______ spermatids?: 4
primary spermatocytes and secondary spermatocytes are both ________________?: haploid
most mitochondria are found in which region of the sperm?: midpiece
LH directly _____________ testosterone release?: increases
sterocilia are found in which region of the male reproductive tract?: epididymis
ductus deferens, ejaculatory duct epididymis or seminal vesicle; which does sperm not pass through?: seminal vesicle
what is the source of sperm ATP?: fructose
GnRH affects which part of the pituitary gland?: anterior
which hormone causes the development of the corpus luteum?: LH

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Number of cards 76