Q3 of 63 Page 154

Rewrite the terms in the correct order so as to be in a logical sequence.

(a) Sperm duct, penis, testes, sperms, semen.


(b) Puberty, menopause, menstrual, menarche, reproductive age.


(c) Graafian follicle, ostium, uterus, fallopian tube.

(a) Testes → Sperms → Sperm duct → Semen → Penis


Explanation: Testes produce sperms that are transported through the sperm duct. The semen gets added and then reaches the penis.


(b) Menarche → Puberty → Reproductive age → Menstrual → Menopause


Explanation: Menarche is the onset of puberty. It marks the beginning of reproductive age during which menstruation occurs. The termination of reproductive age is identified by the onset of Menopause.


(c) Graafian follicle → Ostium → Fallopian tube → Uterus


Explanation: Graafian follicle is a mature ovum. It is sent to the fallopian tube. The opening of the fallopian tube is called an Ostium. The tube transports it to the uterus.


More from this chapter

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1

Name the following:

(a) The body part in which the testes are present in a human male.


(b) The part where the sperms are produced in the testes.


(c) The fully developed part of the ovary containing a mature egg.


(d) The accessory gland in human males whose secretion activates the sperms.


(e) The tubular knot fitting like a cap on the upper side of the testis.

 2

Choose the odd one in each of the following:

(a) Oestrogen; progesterone; testosterone; prolactin.


(b) Ovary; fallopian tube; ureter; uterus.


(c) Seminiferous tubule; ovum; epididymis; sperm duct; urethra.


(d) Sperm; implantation; fertilization; ovum; after birth.

 4

Write in sequence, the regions through which a mature sperm travels from the seminiferous tubules up to the urethral opening in the human male.

 1

What is semen?