ANATOMY AND PHYSIOLOGY.
TOPIC: REPRODUCTIVE SYSTEM.
QUESTION AND ANSWER.
TABLE OF CONTENTS.
1.0 Summary of Reproductive system.
2.0 Q&A(Reproductive system)
SUMMARY.
Human reproductive system, the mechanism for human reproduction. Sexual reproduction is
intended to create genetic diversity in people. Specifically, children who will grow up to be distinct
from their parents, siblings, and other children. Meiosis, the process of producing gametes, and the
union of a sperm and an ovum are what enable this. A zygote with an X and a Y chromosome results
in a male, whereas a zygote with two X chromosomes results in a female. The basic sex
characteristics are the reproductive organs that are present at birth, and you should be aware of
them. The secondary sex characteristics are the physical traits that appear after puberty.
The fallopian tubes, which transport eggs from the ovaries to the uterus in females, open close to
the location of the ovaries. The clitoris, a little erectile organ, is situated where the labia unite in
front. The cervix extends from the lower end of the uterus into the vagina opening, as well as that of
the urethra (see urinary system), is covered by four folds of skin (the labia). For the duration of the
reproductive years, with the exception of pregnancy and nursing, the uterus' and ovaries' activity
undergoes a monthly cycle of changes (see menstruation). The testes are located in the scrotum, a
skin-covered sac, in males. From each testis, a lengthy duct called the vas deferens emerges.
Human reproductive system organs. A male's scrotum is a pouch of skin that is separated into two
sacs, each of which houses a testis and the epididymis that goes with it. Sperm cells in various
developmental stages are found in the tubules of the testes. Sperm enters the epididymis, a tightly
coiling tube that acts as a sperm reservoir, as it exits the testes. The duct of the seminal vesicles and
the vas deferens, which emerge from the epididymis, combine as they pass past the prostate gland
to produce the ejaculatory duct, which exits into the urethra, the tube that carries both sperm and
urine out through the penis. Each month during menstruation, a follicle containing an egg grows in
either of both ovaries. The egg is dragged into the accompanying fallopian (uterine) tube of the
ovary, which has a fringe of finger like projections (fimbriae), during the time of ovulation, when the
mature follicle ruptures and discharges its contents. As the egg moves from the fallopian tube to the
uterus, fertilization typically takes place there. An embryo develops when a fertilized egg is
successfully implanted in the uterus. The muscular vagina, which connects to the uterus, facilitates
sperm entry and acts as a pathway for the developing foetus during birthing.
QUESTIONS AND ANSWERS.
Qn 1. One of the following is NOT a secondary sex characteristic. Which one?
A. the adult male body shape
B. the thicker vocal cords of a male
C. pubic hair
, D. the penis
Answer is D: Secondary sex characteristics are those that develop after puberty. That is, are not
present at birth.
Qn 2. What does gonadotropin releasing hormone (GnRH) do?
A. stimulates the anterior pituitary to release LH.
B. stimulates the anterior pituitary to release both LH and FSH.
C. stimulates the anterior pituitary to release FSH.
D. stimulates the corpus luteum to release progesterone.
Answer is B: GnRH stimulates the ant pit to release both LH and FSH, which are two gonadotropins.
They act on the gonads and control gamete and sex hormone production.
Qn 3. Where are the male ejaculatory ducts?
A. In the testicles before the epididymis.
B. In the penis.
C. Between the bulbourethral glands and the urethra.
D. At the end of the vas deferens (ductus deferens).
Answer is D: The ejaculatory ducts commence where the ducts of the seminal glands join the vas
deferens and end where the vas deferens join with the urethra.
Qn 4. How do sperm cells differ from other cells in the male body?
A. they contain 23 chromosomes
B. they all contain an X chromosome
C. they all contain a Y chromosome
D. they undergo mitosis
Answer is A: Somatic cells contain 46 chromosomes, whereas a sperm cell has 23. It has either an X
or a Y chromosome.
Qn 5. What is the function of luteinising hormone?
A. It stimulates the interstitial (Leydig) cells to produce testosterone.
B. It stimulates sustentacular (Sertoli) cells to produce sperm.
C. It stimulates the anterior pituitary to release follicle stimulating hormone.
D. It stimulates the ovary to develop follicles.
Answer is A: Luteinising hormone targets the interstitial cells of the testes inducing them to secrete
testosterone. (In women a surge in LH triggers the completion of meiosis I, ovulation, and the
formation of corpus luteum)
Qn 6. Where should fertilisation of the egg by a sperm occur?
TOPIC: REPRODUCTIVE SYSTEM.
QUESTION AND ANSWER.
TABLE OF CONTENTS.
1.0 Summary of Reproductive system.
2.0 Q&A(Reproductive system)
SUMMARY.
Human reproductive system, the mechanism for human reproduction. Sexual reproduction is
intended to create genetic diversity in people. Specifically, children who will grow up to be distinct
from their parents, siblings, and other children. Meiosis, the process of producing gametes, and the
union of a sperm and an ovum are what enable this. A zygote with an X and a Y chromosome results
in a male, whereas a zygote with two X chromosomes results in a female. The basic sex
characteristics are the reproductive organs that are present at birth, and you should be aware of
them. The secondary sex characteristics are the physical traits that appear after puberty.
The fallopian tubes, which transport eggs from the ovaries to the uterus in females, open close to
the location of the ovaries. The clitoris, a little erectile organ, is situated where the labia unite in
front. The cervix extends from the lower end of the uterus into the vagina opening, as well as that of
the urethra (see urinary system), is covered by four folds of skin (the labia). For the duration of the
reproductive years, with the exception of pregnancy and nursing, the uterus' and ovaries' activity
undergoes a monthly cycle of changes (see menstruation). The testes are located in the scrotum, a
skin-covered sac, in males. From each testis, a lengthy duct called the vas deferens emerges.
Human reproductive system organs. A male's scrotum is a pouch of skin that is separated into two
sacs, each of which houses a testis and the epididymis that goes with it. Sperm cells in various
developmental stages are found in the tubules of the testes. Sperm enters the epididymis, a tightly
coiling tube that acts as a sperm reservoir, as it exits the testes. The duct of the seminal vesicles and
the vas deferens, which emerge from the epididymis, combine as they pass past the prostate gland
to produce the ejaculatory duct, which exits into the urethra, the tube that carries both sperm and
urine out through the penis. Each month during menstruation, a follicle containing an egg grows in
either of both ovaries. The egg is dragged into the accompanying fallopian (uterine) tube of the
ovary, which has a fringe of finger like projections (fimbriae), during the time of ovulation, when the
mature follicle ruptures and discharges its contents. As the egg moves from the fallopian tube to the
uterus, fertilization typically takes place there. An embryo develops when a fertilized egg is
successfully implanted in the uterus. The muscular vagina, which connects to the uterus, facilitates
sperm entry and acts as a pathway for the developing foetus during birthing.
QUESTIONS AND ANSWERS.
Qn 1. One of the following is NOT a secondary sex characteristic. Which one?
A. the adult male body shape
B. the thicker vocal cords of a male
C. pubic hair
, D. the penis
Answer is D: Secondary sex characteristics are those that develop after puberty. That is, are not
present at birth.
Qn 2. What does gonadotropin releasing hormone (GnRH) do?
A. stimulates the anterior pituitary to release LH.
B. stimulates the anterior pituitary to release both LH and FSH.
C. stimulates the anterior pituitary to release FSH.
D. stimulates the corpus luteum to release progesterone.
Answer is B: GnRH stimulates the ant pit to release both LH and FSH, which are two gonadotropins.
They act on the gonads and control gamete and sex hormone production.
Qn 3. Where are the male ejaculatory ducts?
A. In the testicles before the epididymis.
B. In the penis.
C. Between the bulbourethral glands and the urethra.
D. At the end of the vas deferens (ductus deferens).
Answer is D: The ejaculatory ducts commence where the ducts of the seminal glands join the vas
deferens and end where the vas deferens join with the urethra.
Qn 4. How do sperm cells differ from other cells in the male body?
A. they contain 23 chromosomes
B. they all contain an X chromosome
C. they all contain a Y chromosome
D. they undergo mitosis
Answer is A: Somatic cells contain 46 chromosomes, whereas a sperm cell has 23. It has either an X
or a Y chromosome.
Qn 5. What is the function of luteinising hormone?
A. It stimulates the interstitial (Leydig) cells to produce testosterone.
B. It stimulates sustentacular (Sertoli) cells to produce sperm.
C. It stimulates the anterior pituitary to release follicle stimulating hormone.
D. It stimulates the ovary to develop follicles.
Answer is A: Luteinising hormone targets the interstitial cells of the testes inducing them to secrete
testosterone. (In women a surge in LH triggers the completion of meiosis I, ovulation, and the
formation of corpus luteum)
Qn 6. Where should fertilisation of the egg by a sperm occur?
