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Question
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?
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Solution
(i) 1. Peritoneum
2. Ureter
3. Backbone
4. Rectum
5. Seminal vesicle
6. Glands
7. Anus
8. Vas deferens
9. Epididymis
10. Left testis
11. Scrotum
12. Penis
13. Urethra
14. Vascular erectile tissue
15. Bladder
16. Muscular wall of abdomen
(ii) The two functions of part 6 are :
(a) Prostate gland secretes an alkaline milky secretion into semen that aids in sperm motility.
(b) Cowper's gland also secretes a lubricant.
(iii) The three components of urine are urea, uric acid, amino acids, glucose, sodium, potassium, vitamins etc.
(iv) The main function of the part labelled 3 is backbone. Its function is to give support, movement and protection to the spinal cord.
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The figure given below is an important gonad of humans. Study the figure and answer the following questions.
 |
- Identify the organ. Write its specific location in the body.
- Label the parts shown in the figure as 1 to 4.
- Write important functions of parts 2 and 4.
- Name one cellular structure and one hormone which are produced in part 3.
- Draw a neat and labelled diagram of the cellular structure mentioned by you in (d).
