Reproductive System

Helpfulness: +1
Set Details Share
created 8 years ago by Meghan1368
2,015 views
Chapter 28 & 29 Sample Questions
updated 8 years ago by Meghan1368
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

The main control center of the female reproductive system is the

hypothalamus

2

Onset of puberty in both sexes is signaled by increases in levels of

LH

3

Oral contraceptives for female typically contain

progestin & estrogen

4

Repair of the endometrium during the preovulatory phase of menstruation is due to rising levels of

estrogen

5

The female structure that is homologous to the scrotum is the

labia majora

6

Type of the epithelium of vaginal mucosa is

stratified squamous

7

Sertoli cells produce

androgen-binding protein

8

The immune system doesn’t normally attack spermatogenic cells because

are protected by blood-testis barrier

9

During spermatogenesis, which of the following undergoes a meiotic division to produce haploid cells?

first sperma tocytes (primary)

10

In male, LH causes

testosterone production

11

Final maturation of sperm cells occurs in the

Epididymis

12

Like spermatogonia these cells are diploid (46 chromosomes)?

primary spermatocytes

13

The acrosome of a sperm cell contains

hyaluronidase for egg penetration.

14

The principal androgen is

testosterone

15

Seminal vesicles produce

fructose-rich fluid

16

A normal mature human spermatozoa contains

23 chromosomes

17

The oogenesis begins in females

before birth

18

ALL of the following are functions of estrogens

help control fluid and electrolyte balance.
promote protein anabolism.
help regulate secretion of FSH.
promote development and maintenance of female secondary sex characteristics.

19

During the menstrual cycle, progesterone is produced by

the corpus luteum.

20

The main function of progesterone during the menstrual cycle is to

thicken the endometrium.

21

ALL of the following are sympathetic responses during sexual intercourse

peristalsis in the ductus deferens.
increased blood pressure.
contraction of perineal muscles.
ejaculation of semen.

22

The drug Viagra enhances the effects of __________ in the penis.

nitric oxide

23

The role of nitric oxide in the erection of the penis is to __________.

relax smooth muscle in penile arteries

24

Ovulation is triggered by a surge in the level of the hormone __________.

LH

25

During the ovarian preovulatory phase, the uterus is in its __________ phase in which endometrial mass doubles under the influence of __________.

proliferative; estrogens

26

Inhibin primarily inhibits secretion of __________.

FSH

27

About 60% of the volume of semen is contributed by the __________.

seminal vesicles

28

The spermatic cord passes through an opening in the anterior abdominal wall called the __________.

inguinal canal

29

In the prostate and seminal vesicles, 5 alpha-reductase converts testosterone to a more potent androgen called __________.

dihydrotestosterone (DHT)

30

The blood-testis barrier is formed just internal to the basement membrane of the seminiferous tubules by tight junctions between __________ cells.

Sertoli

31

The testicular artery, veins, autonomic nerves, lymphatic vessels, and the cremaster muscle together constitute the __________.

spermatic cord

32

The vascular changes resulting in an erection are the result of a __________ reflex.

parasympathetic

33

Inheritance of the ABO blood type is an example

codominance

34

Once hCG levels decrease, estrogen and progesterone are secreted mainly by

placenta

35

Deoxygenated fetal blood is carried to the placenta via

umbilical artery

36

Which of the following has occurred by the end of the first month of development

The heart has formed and begun beating

37

The endometrium is digested by enzymes released from the

trophoblast

38

The portion of the endometrium that becomes the maternal portion of the placenta

deciduas basalis

39

At day 4 after fertilization, the solid ball of cells that has formed is called the

morula

40

What percentages of sperm cells introduced into vagina normally reach the oocyte?

less than 1%

41

What is the next event following syngamy?

depolarization & release of calcium ions by the

42

Two lab tests which are commonly used in the hospital to find out the early genetic fetus disorders. Which two? Test what? What is the difference between these two tests?

Amniocentesis- 14-16 wks, genetic disorders
Chorionic villi- 8-10 wks, genetic disorders

43

Mucous membrane lining the uterus

Endometrium

44

The term capacitation refers to

functional changes that sperm undergo in the female reproductive tract that allow them to fertilize the secondary oocyte.

45

The term syngamy refers to the

a sperm cell's penetration of the zona pellucida and entry into a secondary oocyte.

46

Implantation usually occurs in the

posterior wall of the body or fundus of the uterus.

47

The human gestation period is about

38 weeks.

48

The embryonic period of development covers what time period?

the first two months following fertilization

49

For fertilization to occur, a sperm must penetrate

corona radiata.
zona pellucida.
granulosa cells.
clear glycoprotein layer.

50

The “water” referred to when a woman's “water breaks” prior to delivery is

amniotic fluid released when the amnion ruptures.

51

The reason the corpus luteum is maintained in early pregnancy is to

keep levels of estrogen and progesterone high enough to maintain the endometrium.

52

Human chorionic gonadotropin is produced by the

trophoblast cells of the chorion.

53

Peak secretion of hCS occurs

late in the third trimester.

54

In a pregnant woman, decreased utilization of glucose and increased release of fatty acids from adipose tissue are promoted by the hormone

hCS.

55

Early pregnancy tests are based on detection of what substance in the urine?

hCG

56

What event marks the beginning of the stage of expulsion in true labor?

complete cervical dilation

57

The observable characteristics of a person's genetic makeup are known as the

phenotype.

58

An individual whose alleles for a particular trait are the same is said to be

homozygous.

59

The two alternative forms of a gene that code for the same trait and are at the same locus on homologous chromosomes are called

alleles.

60

A person is heterozygous for a particular trait if he/she has

one dominant allele and one recessive allele for the trait.

61

If two genes for a trait are expressed equally in a heterozygote, they are said to be __________.

codominant

62

The hormone __________ inhibits uterine contractions; the hormone __________ promotes uterine contractions.

progesterone/oxytocine

63

The part of the female reproductive tract in which fertilization normally occurs is the __________.

Uterine tube