Advertisements
Advertisements
Question
Write the answers to the questions by observing the figure.

- What does the above figure show?
- Write the names of parts A, B, C, D.
- Write the function of the part 'D'.
- How is semen formed?
Advertisements
Solution
- The given figure represents the human male reproductive system.
- A: Seminal vesicle
B: Prostate gland
C: Urinogenital duct
D: Testis - The part labelled as ‘D’ is testis which is responsible for sperm production.
- Semen is formed of sperms and secretions of seminal glands, prostate gland and Cowper’s glands.
APPEARS IN
RELATED QUESTIONS
Write the location and functions of the following in human testes :
Leydig cells
Identify True/False statement. Correct false statement to make it true.
Androgens are produced by Sertoli cells.
Differentiate between the Tubectomy and Vasectomy (Part cut and tied)
State the reason why testes lie outside the abdomen in a scrotum?
Given on the right is a diagram which represents the reproductive organs of a man:
(i) Write the names of the parts numbered 1 to 16.
(ii) Give two functions of the part 6.
(iii) Name three components of the fluid which may be found in the tube labeled 2.
(iv) What is the main function of the part labelled 3?

Name the Following
The site of production of sperms in man.
The increased level of estrogen and progesterone is responsible for menstruation.
In the male reproductive system, the vasa deferens joins the ____________.
ln the reproductive system of a male human being, the ejaculatory ducts open into ________.
In humans, male germs cells differentiate into ______ at the end of first meiotic division.
Occurrence of Leydig’s cells and their secretion is ______.
Sertoli cells are regulated by the pituitary hormone known as ______.
ells of Leydig occur in ______.
Seminal plasma, the fluid part of semen is formed by ______.
______ is the smallest cell in males.
Give reasons for the following
Scrotum remains outside the body of human males.
Assertion (A): Testes in human males are located outside the abdominal cavity in scrotum.
Reason (R): Scrotum provides a lower temperature than the normal body temperature for sperm formation.
Answer the following question based on the human male reproductive system:
What is the length of a sperm?
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Follicle cells : Ova :: ______ : Sperms.
What are spermatogonia?
