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in Biology by (61.9k points)

Draw a labelled diagram of the human female reproductive system.

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Best answer

Ovary: Each ovary contains immature ova (eggs) in follicles. 

(ii) Females born with lifetime supply of eggs (250,000-400,000 in each ovary) 

(iii) Ovaries release ovum -. Almost all ova degenerate between birth and puberty. 

(iv) Approx. 400 eggs will be ovulated over woman's life. 

(v) Egg is the largest human cell. 

(vi) Ovaries are located lower abdomen. 1 left and 1 on the right. 

Fallopian tubes 

(i) Two thin tubes attached to the upper sides of uterus 

(ii) Tubes terminate near the ovaries but are not attached 

(iii) "Fimbriae" are finger-like structures on the end of each tube 

(iv) Tubes conduct egg to uterus by use of small hairs called "cilia" 

(v) Fertilization of ovum takes place in the ampullaryisthmic junction of the fallopian tubes. Egg viable for only 24-48 hours after ovulation.

Uterus: 

(i) Pear-shaped organ located in lower abdomen. 

(ii) Muscles(myometrium) stretch to allow baby to develop. Oxytocin starts labor contractions. 

(iii) Lining of uterus (endometrium) thickens with blood-rich tissue due to progesterone. 

(iv) Endometrium supports embryo/fetus during growth. 

(v) Placenta : It is the interface between baby and mother. If not pregnant, lining breaks down and is discharged from body through vagina. This is menstruation (period). 

(vi) Cervix connects uterus to vagina. Like a door that opens during ovulation. Cervical mucous closes the door at all other times.

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The human female reproductive system.

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