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Phys reproduction

QuestionAnswer
The main factor determining male fertility. number of sperm ejaculated
The follicular phase of the menstrual cycle is the same as the: postmenstrual phase
The postmenstrual phase is the same as the: preovulatory phase, cycle days 6 to 13 or 14, also called the estrogenic phase or follicular phase
Stretchiness (elasticity) of the cervical mucous. spinnbarkeit
Fertilization of an ovum most often occurs in the: fallopian tube
The gland that secretes a slightly acidic substance that constitutes about 30% of the seminal fluid. prostate
The phase of the menstrual cycle that occurs between the expulsion of the ovum from the ovary and the onset of mesnes is the ___ phase. luteal, which is also the premenstrual phase
Testosterone is responsible for producing secondary sex characteristics. True or false. true
In females, what hormones produce secondary sex characteristics? FSH and LH cause estrogen and progesterone to be produced.
What cells produce testosterone? Leydig cells
The hormone that causes the follicle to rupture and the egg to be expelled is: LH
What is the name of the so-called "ovulating hormone?" LH
The primary spermatocytes and the spermatogonia each contain 46 chromosomes. true or false true
The hormone that causes the alveoli of the mammary glands to secrete milk. prolactin
What are functions normally associated with the uterus? menstruation and gestation
Why is fertilization not usually associated with the uterus? because fertilization takes place in the fallopian tubes
The major function of the reproductive system is propagation of the species. true or false true
The anatomical structure of an epididymis consists of a head, neck, body, and tail. true or false true
Characteristics of FSH. produced in the anterior pituitary gland, increases the production of sperm, its secretion is inhibited by high testosterone levels. (Therefore, it does NOT stimulate the secretion of testosterone.)
What are paired accessory glands of the male reproductive system? seminal vesicle, Bulbourethral gland, Cowper gland
The prostate a paired accessory gland of the male reproductive system. true or false false
The prepuce is also commonly referred to as: the foreskin
The opening of the urethra at the tip of the glans. external urinary meatus
The name for the tip of the penis. glans penis
What are the mechanisms that control lactation? anterior pituitary secretes prolactin, posterior pituitary secretes oxytocin, prolactin causes the alveoli of the mammary glands to secrete milk, oxytocin stimulates the ejection of milk into the ducts of the mammary glands
The increase in blood estrogens during the postmenstrual phase of the menstrual cycle produces what changes in the uterus. All of the above!!! growth of both endometrial glands and spiral arteries of the endometrium; increased myometrial contractions; proliferation of endometrial cells producing a thickening of the endometrium
The increase in blood estrogens during postmenstrual phase decreases the myometrial contractions. true or false false
The hormone that causes the follicle to rupture and the egg to be expelled. LH (luteinizing hormone)
What is the best statement to explain immune infertility? antigen-antibody reaction in males causes destruction of sperm, resulting in infertility
What are some functions of the ovary? producing estrogen, producing ova
Where is follicle-stimulating hormone produced? In the pituitary gland, not the ovary
Which are functions of sustentacular (Sertoli) cells? produce androgen-binding protein, form the blood-testis barrier
Sertoli cells produce testosterone? true or false false
The foreskin on the male. prepuce
Characteristics of the reproductive system. produces gametes; testis in males; gonad in both sexes; ovary in female
A high blood concentration of estrogens stimulates: epithelial cells of the endometrium to proliferate
The female reproductive system differs from the male reproductive system in that it: provides protection and nutrition to the developing fetus
An advantage of sexual reproduction over asexual reproduction is: greater genetic diversity in offspring
Functional sterility results when sperm count per milliliter falls below __million 25
The male gland that secretes a fructose sugar used as an energy source for sperm is the: seminal vesicle
Created by: TamraArm
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