CBSE Class 10 Answered

1. Testes (Testicles):

• Pair of testes is located below the abdomen in scrotal sac or scrotum.
• Testes produce male gametes sperms (germ cells).
• Sperms can withstand with the lower temperature.
• To maintain the temperature 2 – 3 0C lower than the body, scrotum is located outside the body cavity.

2. Epididymis:

• Tubes present in testes join to form epididymis.
• Epididymis stores sperms temporarily.

3. Vas deferens (sperm duct):

• Each epididymis continues further as sperm duct or vas deferens.
• Each vas deferens unites with a tube coming from the urinary bladder on either side.
• Thus, urethra is the common passage for sperms and urine.

4. Seminal Vesicles:

• A pair of glands.
• Each gland opens into the corresponding sperm duct.
• Seminal vesicle produces secretion which is responsible for the transportation of sperms.

5. Prostate gland:

• It is bilobed structure which surrounds the urethra.
• It pours an alkaline secretion into the semen.

6. Cowper’s gland:

• These are two small ovoid glands.
• They open into urethra.
• Its secretion serves as a lubricant.

7. Penis:

• The urethra passes through the penis.
• It carries either urine or semen at a time.

1. OVARIES:

• Two ovaries present in the pelvic cavity, one each side of the uterus.
• Ovaries produce ova which are female gametes.
• One ovum is released by one ovary every month.
• Ovaries also secrete female hormones oestrogen and progesterone.
• Both the hormones are responsible for the changes in female body at the time of puberty.

2. OVIDUCTS (Fallopian tube):

• The two oviducts or fallopian tubes are present. Each close to one ovary of its side.
• The end of the oviduct is broad and has many finger-like projections.
• When the egg is released by the ovary it passes down to the uterus through the oviduct.

3. UTERUS (Womb):

• Hollow pear-shaped, muscular organ.
• The inner lining of the uterus called endothelium protects and nourishes the developing embryo.

4. VAGINA (Birth Canal):

• Uterus opens into the vagina.
• Vagina is a muscular, narrow tube.

5. VULVA:

• Vagina and urethra both open into the vulva.