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Exam 4 review for final

front 1

The correct sequence of preembryonic structures is _______.

back 1

zygote, morula, blastocyst

front 2

1) Human papillomavirus

2) organism responsible for up to half of the diagnosed cases of pelvic inflammatory disease

3) treponema pallidum

4) human herpes virus type 2

back 2

Answers in order

Genital warts 1

chlamydia 2

syphilis 3

Genital herpes 4

front 3

Mature follicle location

back 3

front 4

Primary follicle

back 4

front 5

The early stage of embryonic development during which rapid mitotic cell divisions occur as the zygote travels down the uterine ( fallopian ) tube is called _____.

back 5

cleavage

front 6

vesicular ( Graafian ) follicle

back 6

front 7

Stem cell

back 7

front 8

The presence of more oxytocin receptors in the uterus leads to weak, irregular contractions known as ____.

back 8

Braxton hicks

front 9

the fluid-filled sac surrounding the fetus is the ____.

back 9

amnion

front 10

Male sex chromosomes are represented as _____.

back 10

XY

front 11

Normally menstruation occurs when ____.

back 11

blood levels of estrogen and progesterone decrease

front 12

Which of the following is a correct statement about uterine tubes?

back 12

the infundibulum is the funnel-shapped region near the ovary

front 13

The pap smear is a test to detect cancerous changes in cells of the cervix

back 13

True

front 14

the ligament that anchors the anterior portion of the uterus is called the _____.

back 14

round ligament

front 15

All of the following things occur during meiosis I with the exception of one thing. Select the statement below that does not occur during meiosis I.

back 15

the sister chromatids are separated from each other

front 16

the fatty, rounded area overlying the pubic symphysis of a female is the _____.

back 16

mons pubis

front 17

the series of events that expel the infant from the uterus are referred to collectively as _____.

back 17

labor

front 18

acrosome

back 18

front 19

location of mitochondria

back 19

front 20

As the infants head is forced against the cervix with each contraction, the cervix effaces, which means that it

back 20

thins

front 21

trace the pathway of sperm through the duct system during ejaculation ______.

back 21

epididymis, ductus (vas) deferens, ejaculatory duct, urethra

front 22

which hormone is the necessary trigger for ovulation to occur?

back 22

LH

front 23

secretion of progesterone stimulates ______.

back 23

preparation of the mammary glands for lactation

front 24

the basic difference between spermatogenesis and oogenesis is that _____

back 24

in oogenesis, one mature ovum is produced, and in spermatogenesis four mature sperm are produced from the parent cell

front 25

the hormone responsible for the development and maintenance of male secondary sexual characteristics is

back 25

testosterone

front 26

menopause, which ends childbirth ability, is considered to have occurred when a woman _____

back 26

has gone a year without menstuation

front 27

the placenta and its attached fetal membranes, expelled from the uterus during the placental stage of labor, are collectively referred to as ____

back 27

the after birth

front 28

flagellum

back 28

front 29

the duct system of the male reproductive system includes all but which of the following?

back 29

corpus spongiosum

front 30

which of the following is not a primary germ layer

back 30

epiderm

front 31

All but one of the following statements is true of uterine function. select the statement that is not true of uterine function.

back 31

the narrow portion of the uterus near the cervix is the most typical site of fertilization

front 32

all but one of the following statements describes the necessity of the blood testis barrier. select the one statement that does not describe a necessity of the blood testis barrier.

back 32

sperm can only be produced at temperatures lower than body temperature. inflammation in the testis could raise the temperature too high to produce sperm.

front 33

the gonads produce sex cells, also known as

back 33

gametes

front 34

the structures that receive the ovulated oocyte, providing a site for fertilization, are called the

back 34

fallopian tubes

front 35

corpus luteum

back 35

front 36

the movement of an egg cell down a uterine tube is aided by

back 36

both ciliary action and peristaltic contractions

front 37

thick, clear mucus that cleanses the urethra of acidic urine is produced by the

back 37

bulbo-urethral glands

front 38

fertilization generally occurs in the

back 38

fallopian tubes

front 39

early spermatids

back 39

front 40

Match

1) forms the mothers part of the placenta

2) becomes the embryonic disc

3) surrounds the uterine cavity face of the implanted embryo

4) forms the chorion

back 40

Answers in order

decidua basalis 1

inner cell mass 2

decidua capsularis 3

trophoblast 4

front 41

which of the choices below occurs if implantation is successful

back 41

the corpus luteum is maintained until the placenta takes over its hormone-producing functions.

front 42

the dartos and cremaster muscles are important to the integrity of the male reproductive system. which of the following is true about the role they play?

back 42

they regulate the temperature of the testes

front 43

by the end of the embryonic period, at 8 weeks, all the adult organ systems are recognizable

back 43

true

front 44

the process by which the acrosome membranes of sperm break down is known as

back 44

the acrosomal reaction

front 45

select the correct statement about the hormonal events of the ovarian cycle

back 45

high estrogen levels result in a surge of LH release

front 46

select the correct statement about male sexual response

back 46

erection is the result of vascular spaces in the erectile tissues filling with blood

front 47

meiosis occurs during

back 47

both spermatogenesis and oogenesis

front 48

Days 6-14 of the uterine (menstrual) cycle are known as the ____ phase. this phase concludes with ovulation

back 48

proliferative

front 49

Match

1) leads to the development of a morula and then a blastocyst

2) leads to the formation of the first cell of the new individual

3) leads to the establishment of the three primary germ layers

4) leads to enhancement of sperm motility and increasing membrane fragility to enable enzyme release from acrosomes

5) embedding of the blastocyst in the uterine wall

back 49

Answers in order

cleavage 1

fertilization 2

gastrulation 3

capacitation 4

implantation 5

front 50

the infant is delivered during the second stage of labor known as the _____stage

back 50

expulsion

front 51

ovarian follicles contain mature eggs

back 51

false

front 52

human egg and sperm are similar in that

back 52

they have the same number of chromosomes

front 53

in the block to polyspermy, entry of the sperms contents causes _____ levels in the oocytes cytoplasm to rise, triggering the cortical reaction

back 53

calcium ion

front 54

failure of the testes to descend into the scrotum is a condition known as _____

back 54

cryptorchidism

front 55

an episiotomy is an incision made to widen the vaginal orifice, aiding fetal expulsion

back 55

true

front 56

the stage called ovulation

back 56

front 57

which of the following statements about spermatogenesis is not true

back 57

each spermatid forms two sperm

front 58

the innermost mucosa layer of the uterus is called the

back 58

endometrium

front 59

which is not a part of the proliferative phase of the female menstrual cycle

back 59

corpus luteum

front 60

which of the following female structures is homologous to the male scrotum

back 60

labia majora

front 61

in fetal circulation, one way in which blood bypasses the nonfunctional lungs is by way of the foramen ovale

back 61

true

front 62

the constancy of the chromosome number from one cell generation to the next is maintained through

back 62

meiosis

front 63

first cells with n number of chromosomes

back 63

front 64

cells of the _____ gather around the notochord and neural tube and produce the vertebra and rib at their associated level

back 64

sclerotome

front 65

which of the following glands are responsible for 70% of the synthesis of semen

back 65

the seminal vesicles

front 66

select the correct statement about testosterone control

back 66

GnRH from the hypothalamus causes FSH and LH release from the anterior pituitary

front 67

of the three germ layers, the mesoderm forms the most body parts

back 67

true

front 68

the most important risk for testicular cancer in young males is

back 68

failure of the testis to make their normal decent

front 69

Milk ejection ( the letdown reflex ) is stimulated by which of the following hormones associated with pregnancy

back 69

oxytocin

front 70

which of the following refers to the transfer of sperm and harvested oocytes together into the woman's uterine tubes in the hopes that fertilization will take place there

back 70

gamete intrafallopian transfer (GIFT)

front 71

primary spermatocyte

back 71

front 72

Undifferentiated spermatogenic cells are called

back 72

spermatogonia

front 73

the enlarged tip of the penis is called the

back 73

glans penis

front 74

primordial follicle

back 74

front 75

which of the choices below is not a function of the vagina

back 75

serves as a passageway for the primary oocyte

front 76

the male and female reproductive systems

back 76

transport sex cells to sites of fertilization

secrete hormones for developing secondary sex characteristics

produce sex cells

secrete hormones for maintaining secondary sex characteristics

(Answer) All of the above

front 77

women athletes sometimes experience disturbances in their reproductive cycles because of

back 77

decreased synthesis of estrogens

front 78

the hypothalamic-pituitary-gonadal axis

back 78

involves FSH and LH release

front 79

all but one of the following statements are true regarding the differences between early and late spermatids. select the answer below that does not reflect a difference between early and late spermatids

back 79

early spermatids have not undergone meiosis and are still diploid

front 80

type B spermatogonia

back 80

front 81

androgens are

back 81

male sex hormones

front 82

the first major event in organogenesis is

back 82

neurulation

front 83

the genetic determinate for male reproductive development is

back 83

the SRY gene

front 84

Follicle-stimulating hormone causes a primordial follicle to start the maturation process

back 84

true

front 85

the amount of testosterone and sperm produced by the testes is dependent on the influence of FSH alone.

back 85

false

front 86

the hormone mainly responsible for the development and maintenance of female secondary sexual characteristics is

back 86

estrogen

front 87

the pigmented area of a females breast that surrounds the nipple is the

back 87

areola

front 88

it is necessary for the testes to be kept below body temperature for abundant, viable sperm formation

back 88

true