Reproduction And Birth Chap 19 & 20

Front 1

The male and female reproductive systems

Back 1

produce sex cells

transport sex cells to site of fertilization

secrete hormones for developing secondary sex characteristics

secrete hormones for maintaining secondary sex characteristics

Front 2

The cells in the testis that produce male sex hormones are called

Back 2

interstitial cells

Front 3

Testicular cancer is most likely to originate from

Back 3

epithelial cells of semineferous tubules

Front 4

Undifferentiated spermatogenic cells are called

Back 4

spermatogonia

Front 5

In spermatogenisis, meiosis results in the formation of

Back 5

four sperm cells with 23 chromosomes each

Front 6

The head of a sperm is mostly

Back 6

the nucleus

Front 7

The tightly boiled tube that leads to the ductus deferens is the

Back 7

epididymis

Front 8

The secretions of the prostate gland neutralize acidic semen

True or false

Back 8

True

Front 9

The primary sex organs of the male reproductive system are the

Back 9

testis

Front 10

Sperm cells are produced by the spermatogenic cells that line the

Back 10

seminiferous tubules

Front 11

In the testes male sex hormones are produced by the

Back 11

interstitial cells

Front 12

The tail of a sperm cell is called

Back 12

a flagellum

Front 13

The culmination of sexual stimulation, which is accompanied by a sense of physiological and psychological release is called

Back 13

orgasm

Front 14

Androgens are

Back 14

male sex hormones

Front 15

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

Back 15

testosterone

Front 16

The amount of testosterone produce is regulated by a negative feedback system

True or False

Back 16

True

Front 17

Meiosis occurs during

Back 17

both spermatogenesis and ooogenisis

Front 18

Which of the following can be fertilized to produce a zygote

Back 18

secondary oocyte

Front 19

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

Back 19

both ciliary action and peristaltic contractions

Front 20

The tubular portion of the uterus that extends downward into the upper part of the vagina is the

Back 20

cervix

Front 21

The endometrium is the inner layer of the

Back 21

uterus

Front 22

A pap smear is used to detect abnormal cells in the

Back 22

cervix

Front 23

The female structure that corresponds to the male penis is the

Back 23

clitoris

Front 24

The primary organs of the female reproductive system is the

Back 24

ovaries

Front 25

The fertilization of an egg occurs in the uterine tube

True or false

Back 25

true

Front 26

__Blank__ is the process by which egg cells are formed

Back 26

oogenisis

Front 27

As a group, the structures of the female reproductive system that surround the openings to the urethra and vagina comprise

Back 27

the vulva

Front 28

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

Back 28

estrogen

Front 29

In the female reproductive cycle, menstrual flow occurs when the concentrations of

Back 29

estrogen and progesterone are low

Front 30

Women athletes sometimes experience disturbances in their reproductive cycles because of

Back 30

decreased synthesis of estrogens

Front 31

FSH stimulates a primordial follicle to start the maturation process

True or false

Back 31

True

Front 32

An increase in the hormone FSH at approximately day 14 causes ovulation

True or false

Back 32

False

Front 33

The hormone that stimulates female breast development is

Back 33

estrogen

Front 34

Following ovulation the follicular cells of the ovary enlarge to form a structure called the

Back 34

corpus luteum

Front 35

The period when female reproductive cycles cease is

Back 35

menopause

Front 36

The females _blank_ glands secrete milk

Back 36

mammary

Front 37

Mechanical barriers used in birth control include

Back 37

condom- male and female

diaphragm

cervical cap

Front 38

Preventing fertilization is called

Back 38

contraception

Front 39

Symptoms of sexually transmitted infections include

Back 39

fever

a burning sensation

sores blisters bumps or rash

discharge from genitalia

Front 40

A complication of the STIs gonorrhea and chlamydia is

Back 40

pelvic inflammatory disease (PID)

Front 41

The prenatal period extends from

Back 41

fertilization until birth

Front 42

Development is a continuous process during which the individual changes from one life phase to another including growth

True or false

Back 42

True

Front 43

The combining of egg and sperm chromosomes is called

Back 43

fertilization

Front 44

Muscle contractions of the uterine wall and _blank_ is the semen aid sperm cell movement through the uterus and uterine tubes

Back 44

prostaglandins

Front 45

An enzyme that sperm secrete that is important for penetration of the egg is

Back 45

hyaluronidase

Front 46

A substance used to induce the development of ovarian follicles during the in vitro fertilization procedure is

Back 46

human menopausal gonadrotropin

Front 47

The condition characterized by the presence of a developing embryo within the uterus is called

Back 47

pregnancy

Front 48

A human zygote contains

Back 48

46 chromosomes

Front 49

The first cell of an offspring is a

Back 49

zygote

Front 50

The fetal stage of development begins at the end of the

Back 50

eighth week

Front 51

Dizygotic twins results from the combinations of

Back 51

two egg cells and two sperm cells

Front 52

The cells of a blastocyst that give rise to the body of the developing offspring constitute the

Back 52

inner cell mass

Front 53

Teratogens are substances that

Back 53

cause congenital malformations

Front 54

The placental membrane is compose of

Back 54

a double layer of epithelial cells

Front 55

Drugs ingested by a pregnant woman most likely reach her fetus by passing through the

Back 55

placental membrane

Front 56

The symptoms of fetal alcohol syndrome include

Back 56

reduced head size

mental retardation

abnormal facial features

misshapen eyes

Front 57

The external reproductive organs can be distinguished by the BLANK week of development

Back 57

12th

Front 58

Blood rich in oxygen and nutrients is transported from the placenta to the fetus in an

Back 58

umbilical vein

Front 59

The fetal blood that passes through the ductus venous is relatively

Back 59

high in oxygen and nutrients

Front 60

The foramen oval is an opening that allows fetal blood to pass from the

Back 60

right atrium to the left atrium

Front 61

The ductus arteriosus allows fetal blood to move from the

Back 61

pulmonary artery into the aorta

Front 62

What best describes the numbers of blood vessels usually found in the umbilical cord

Back 62

two arteries one vein

Front 63

The hormone oxytocin aids the birth process by stimulating

Back 63

uterine wall contractions

Front 64

The hormone that stimulates the mammary glands to secrete milk is

Back 64

prolactin

Front 65

Factors that cause congenital malformations by affecting an embryo during its period of rapid growth and development is called

Back 65

teratogen

Front 66

The ductus arteriosus allows fetal blood to bypass the liver

true or false

Back 66

false

Front 67

The period of development when the cells of a zygote become progressively smaller as cell division occurs is called

Back 67

cleavage

Front 68

the slender projections that grow out from the trophoblast into the uterine wall are called

Back 68

chronic villi

Front 69

The embryonic membrane that forms blood cells and gives rise to cells destined to become sex cells is the

Back 69

yolk sack

Front 70

A premature fetus has an increased chance of surviving if it produces enough surfactant to aid the functions of its

Back 70

respiratory system

Front 71

What provides the main source of energy for a newborn during its first few days

Back 71

fat

Front 72

Following birth, the infants metabolic rate

Back 72

increases and its oxygen consumption increases

Front 73

The primary function of surfactant is to increase surface tension in the newborns lungs

true or false

Back 73

false

Front 74

A newborns first breath must be particularly forceful since the moist membranes of the lungs are held together by

Back 74

surface tension

Front 75

The called BLANK decreases surface tension in the newborns lungs

Back 75

surfactant

Front 76

Passive aging

Back 76

is a breakdown of structures and slowing of functions

Front 77

A person with two identical variants (alleles) for a gene is

Back 77

homozygous

Front 78

Normal males have

Back 78

one x and one y chromosome

Front 79

A multifactorial trait is

Back 79

caused by one or more genes and the environment