Biology: Human Reproductive System Worksheet 45 points
Name: Ahmed Sameh Taha
Date: 17/2/2020
Class:11/A
Please answer the following questions:
1. Explain the function of the following structures of the male reproductive system: (5)
a. Penis: The penis is the male sexual organ that also serves as a common pathway and exit
for semen and urine.
b. vas deferens: transport sperm from the epididymis to the ejaculatory ducts for the production
of ejaculation.
c. Testes: produce gametes, or sperm, and they secrete hormones, primarily testosterone
d. seminal vesicle: store and produce the majority of the fluid that makes up semen.
e. epididymis: stores sperm and transports it from the testes.
2. Explain the function of the following structures of the female reproductive system.
a. vagina: receives the male reproductive cells, or sperm, and is part of the birth canal during the
birth process.
b. cervix: allow flow of menstrual blood from the uterus into the vagina, and direct the sperms into
the uterus during intercourse.
c. uterus: nurturing the fertilized ovum that develops into the fetus and holding it till the baby is
mature enough for birth.
d. ovaries: produce oocytes (eggs) for fertilization and they produce the reproductive hormones,
estrogen and progesterone
e. oviduct: transmission the ova from the ovary to the uterus and providing the necessary
environment for fertilization and for initial development of the conceptus.
3. What is the primary function(s) of the male reproductive system?
1. To produce, maintain, transport, and nourish sperm (the male
reproductive cells), and protective fluid (semen).
2.
To discharge sperm within the female reproductive tract.
3.
To produce and secrete male sex hormones.
4. What is the primary function(s) of the female reproductive system?
producing female gametes called eggs, secreting female sex hormones (such as
estrogen), providing a site for fertilization, gestating a fetus if fertilization occurs, giving
birth to a baby, and breastfeeding a baby after birth.
5. Two ___haploid___ gametes come together to form a _____Zygote____ in a process called
________reproduction______.
6. Fertilization occurs in what structure of the female reproductive system?
Fallopian tubes
7. the menstrual cycle happen in female reproductive system
7. What other system of the body has a large and important role in the human reproductive
system?
Endocrine system
9. List 2 hormones and describe their importance in the production of reproductive hormones in
human reproductive system.
hormone (FSH): Follicle stimulating hormone is one of the hormones essential to pubertal
development and the function of women’s ovaries and men’s testes
luteinizing hormone (LH): affects the sex organs in both men and women. For women, it
affects ovaries, and in men, it affects the testes. LH plays a role in puberty, menstruation,
and fertility.
10. Why is it advantageous for testes to be kept outside of the male’s body?
They are outside the body because they need to be cooler than the temperature inside
the body, in order to make sperm. If a man's testicles get cold, they are automatically
pulled closer to the body.
11. Base you answer to the following questions on the diagram below and your knowledge of
biology.
A
B
E
C
D
A.
B.
C.
D.
E.
Label each structure A – E.
Uterus
Fallopian tube
Cervix
Vagina
Ovary
b. A placenta normally develops in this structure. A. uterus
c. This is the structure that produces estrogen and progesterone. D. The ovaries
d. This is the structure that produces eggs. B. Fallopian tube
e. This structure dilates before delivery allowing for the baby to emerge from the vagina. C. cervix
f. What is the corpus luteum? mass of cells that forms in an ovary and is responsible for the
production of the hormone progesterone during early pregnancy.
g. What triggers the menstruation? Four hormones are primarily responsible for
the menstrual cycle: estrogen, progesterone, follicle stimulating hormone (FSH), and
luteinizing hormone (LH). The development of an egg follicle in the ovary is stimulated by
FSH.
13. Base you answer to the following questions on the diagram below and your knowledge of
biology.
A
C
B
D
a. Label each structure A – D.
A. Bulbourethral gland
B. Prostate gland
C. Vas deferens
D. urethra
b. List the male secondary sexual characters:
a) Growth of body hair, including underarm, abdominal, chest hair and pubic hair.
b) Growth of facial hair.
c) Enlargement of larynx (Adam's apple) and deepening of voice.
d) Increased stature; adult males are taller than adult females, on average.
e) Heavier skull and bone structure.
f) Increased muscle mass and strength.
g) Broadening of shoulders and chest; shoulders wider than hips.
h) Increased secretions of oil and sweat glands.
c. Which hormones regulate a) testosterone secretion and b) sperm development?
A) LH
B) FSH