EXAM 4

Question 1

The ___ is the gonad and the ___ is the gamete

Answer 1

Testies: sperm

Question 2

Which of the following is generally accepted as a secondary sex characteristic

Answer 2

The enlargement of breasts

Question 3

Which of the following are primary sex organs

Answer 3

Gonads (testes and ovaries)

Question 4

Whether an organism will be genetically male or female is determined by

Answer 4

The sperm

Question 5

The gene that codes for the testis determining factor is going on or on the

Answer 5

Y chromosome

Question 6

The penis is homologous to the

Answer 6

Clitoris

Question 7

The __ is an example of the female external genitalia

Answer 7

Clitoris

Question 8

Descent if the testes is stimulated by the

Answer 8

Testosterone

Question 9

The deep region of the penis surrounding the urethra that engorges with blood during an erection is known as the

Answer 9

Corpus sponginosum

Question 10

When it gets cold the ___ contracts and draws the testes closer to the body to keep them warm

Answer 10

Cremaster muscle

Question 11

Which of the following is not a change in the male body that results from puberty

Answer 11

These are all changes associated with male puberty

Question 12

The process of spermatogenesis and spermiogenisis begins with a ____ and ends with four ____

Answer 12

Germ cells; gametes

Question 13

___ have 46 chromosomes whereas ___ have 23

Answer 13

Primary spermatocytes; spermatids

Question 14

Which of the following is not a function of nurse cells

Answer 14

Secrete testosterone

Question 15

• where do sperm undergo maturation

Answer 15

Epididymis

Question 16

*Where is testosterone produced in the testis

Answer 16

Leydig cells between the semi ferrous tubules

Question 17

• Which structure is generally cut to sterilize a male

Answer 17

Vas deferens

Question 18

*Which structure enlarged as men get older

Answer 18

Prostate

Question 19

*Which structure produces fructose used to power sperm flagella

Answer 19

The seminal vesicles

Question 20

*Which structure produced a pre-ejaculate fluid

Answer 20

Cowpers gland

Question 21

Which of the following is a part of internal female genitalia

Answer 21

vagina, cervix, uterus, fallopian tubes, and ovaries

Question 22

In which structure does fertilization us usually occur

Answer 22

Urtine tube

Question 23

What structure leads from each ovary to the uterus

Answer 23

Uterine tubes

Question 24

Which of the following is not a component of the vuvla

Answer 24

Cervix or vestibule vestibule

Question 25

where does an embryo usually attach to its mother?

Answer 25

the endometrium

Question 26

what provides the most natural lubrication during female sexual excitement

Answer 26

greater vestibular ( Bartholin) glands

Question 27

what is the earliest sign of puberty in girls

Answer 27

breast development

Question 28

which of the following is considered a feminizing hormone

Answer 28

estrogen

Question 29

what is the cessation of menstruation referred to as

Answer 29

menopause

Question 30

when does oogenesis begin

Answer 30

before being born During embryonic development

Question 31

what hormones inhibit the secretion of FSH and LH during the female sexual cycle

Answer 31

Estradiol and progesterone

Question 32

which of the following occurs during the proliferative phase of the menstrual cycle

Answer 32

several follicles are developing an anthem

Question 33

name the indicated phase of the menstrual cycle ( what are the phases of menstrual cycle)

Answer 33

Follicular (before release of the egg) Ovulatory (egg release) Luteal (after egg release)

Question 34

what is the second phase of the menstrual cycle

Answer 34

the follicular stage

Question 35

what is the third phase of the menstrual cycle

Answer 35

luteal

Question 36

what is the first phase of ovarian cycle

Answer 36

the follicular stage

Question 37

what is the second phase of the ovarian cycle

Answer 37

ovulation

Question 38

which of these blood hormone levels reaches its maximum during the luteal phase

Answer 38

progesterone

Question 39

the process that makes it possible for sperm to penetrate the egg is called

Answer 39

capacitation

Question 40

regarding fertilization, which of the following events happens first

Answer 40

the acrosomal reaction

Question 41

the optimal window of opportunity to conceive a child is

Answer 41

a few days before ovulation to less than a day after

Question 42

out of 300 million ejaculated sperm, only about ___ reach the vicinity of the egg

Answer 42

(range) 3000

Question 43

which of the following lists the stages or structures of prenatal development in the correct order

Answer 43

zygote, cleavage, morula, blastocyte, embryo, fetus

Question 44

the spheroidal stage of early prenatal development with about 16 to 64 cells is called a(n)

Answer 44

morula

Question 45

twins produced when a single egg is fertilized are called ___ twins. twins produced from two eggs ovulated at the same time are called ___ twins

Answer 45

monozygotic;dizygotic

Question 46

In the blastocyst, the trophoblast will become _________, whereas the embryo blast will become ________.

Answer 46

part of the placenta; the embryo

Question 47

the __ begins to develop about 11 days after conception and is the sole source of fetal nutrition from the end of week 12 until birth

Answer 47

placenta

Question 48

where are follicles located

Answer 48

surrounding the tunica albuginea or cortex of the ovary

Question 49

which hormone acts primary on the uterus

Answer 49

progesterone

Question 50

describing development of external genitalia in the female fetus

Answer 50

The absences of testosterone causes fetus to develop female genitalia (T)

Question 51

describe the function of hcg

Answer 51

True

Question 52

describing the function of progesterone