anatomy 2 final Flashcards

The normal mature human spermatozoan contains

23 chromosomes

What is responsible for dividing the testis into lobules?

septal extensions of the tunica albuginea

What is the normal sperm count?

50 million -100 million/ml

Which of the below areas is the primary region of sperm storage and maturation.


The seminal vesicles:

produces a secretion rich in fructose

Spermatozoa are produced in which of the following structures?

seminiferous tubules

The ability of the sperms to move along the ductus deferens is due to:

muscular peristalsis

The gland that provides an alkaline, nutritive fluid for the sperms
is the

seminal vesicle

The cells that construct the blood-testis barrier and provide
nourishment for spermatogenic cells are

sustentacular cells

The secretions of the prostate gland are poured into the:


Sustentacular (Sertoli) cells in the testes are responsible for

supporting and nourishing sperm

The anterior wall of the vagina is related to the:


The layer of the uterus responsible for contraction is the


All of the following are true about the mammary gland.

It is a modified sweat gland
Adipose tissue in the gland increases at puberty
Prolactin and oxytocin control lactation

The function of the fimbria of the fallopian tube is to?

grab the secondary oocyte, as soon as ovulation occurs

All of the following about the human female process of reproduction
are true, except

rebuilding the endometrium after menstruation is under the control of prolactin

When the uterus is bent anteriorly over the cervix it is said to be..


Which of the following statements is TRUE about the fallopian tube?

the cilia of the fallopian tube set up currents which help propel the zygote

Which layer of the uterus is shed during menstruation?


The posterior wall of the vagina is related to the?


The outcome of meiosis is to

produce haploid gametes

Which of the following will occur following ovulation?

the endometrium enters the secretory phase

The corpus luteum is:

the ruptured follicle left behind in the ovary after ejection of the
secondary oocyte

Menstruation occurs when:

blood levels of estrogen and progesterone decrease

Rising levels of FSH stimulate

the ovarian follicles to develop

The release of the secondary occyte from the ovary is called:


Two hormones produced by the ovaries are

estrogen and progesterone

During the secretory phase of the menstrual cycle:

progesterone levels are at their highest

At which stage in embryonic development does implantation occur?


The nervous system is derived from the


Functions of amniotic fluid include:

Protection of the embryo from shocks
allowing fetal movements
Brings about the onset of labor when the amniotic sac[bag] ruptures

Which of the following unites with the sperm during fertilization?

secondary oocyte

The germ layers arise from the inner cell mass


Trophoblast secretes HCG


HCG is responsible for keeping the corpus luteum alive till a certain period


The first stage of labor is:

from onset of uterine contractions till complete dilation of the cervix

During later stages of pregnancy progesterone is produced by the:


After fertilization ____ stimulates the corpus luteum to continue
secreting progesterone

human chorionic gonadotropin (HCG)

The embryonic membrane sac that completely encloses the fetus and
contains a watery fluid is the

amniotic sac

The ampulla of the fallopian tube is the site for ?


Stacy's last menstrual period was January 7th. Her expected date of
delivery is most likely to be?

October 14th

Which one of the following is derived from mesoderm?

pectoralis major

Pregnancy test kits used when a woman misses her periods detect the
presence of ?

HCG in the urine

Place the following terms into their correct time sequence.1.
fertilization2. blastocyst3. morula4. zygote5.
implantation6. development of chorionic villi

1,4,3,2,5, and 6

The genotype rr indicates that both alleles are _____ and that they
are _____.

homozygous, recessive

Cystic fibrosis is a recessive autosomal disorder. Mom is homozgous
with dominant alleles, hence does not suffer from the disease but Dad
is heterozygous(carries the defective allele). What percent of their
offspring will be afflicted _____ and what percent will carry the
defective allele? _____

0, 50

An individual who has a recessively inherited disease can be
symbolized as


How many pairs of autosomes are there?

22 pairs

Steve and Emily are expecting their second baby. They already have a
son. What are their chances of another son in this pregnancy?


A man and a woman have had several children but none of them are
boys. They go to the doctor, who tells them in each pregnancy there is
a 50% chance of conceiving a boy, and only one of the parents'
determines the sex of the baby. Which parent?


When the alleles of a gene pair are NOT identical they are said to be


The gene for Parkinsons's Disease is dominant. If a person who is
heterozygous for this trait mates with a person who is also
heterozygous for this trait, the probability that their child will be
afflicted (express the disorder) is?


A recessive trait has to be inherited in the homozygous form in order
to manifest.


Xc is the gene for color blindness and XC is the normal gene for
color vision. In order for a girl to suffer from color blindness her
genotype should be: