Female reproductive system Questions in English

(B) The wall of the human uterus is made up of three layers of tissue: the perimetrium (outer thin layer),the myometrium (middle thick layer of smooth muscle),and the endometrium (inner glandular layer).
The endometrium is the innermost layer that lines the uterine cavity.
It is a highly vascular and glandular layer that undergoes cyclic changes during the menstrual cycle in preparation for implantation of the embryo.
Therefore,the correct option is $B$.

(D) The correct answer is $D$.
The clitoris is a tiny,finger-like structure that lies at the upper junction of the two labia minora,situated above the urethral opening.
It is a highly sensitive organ homologous to the penis in males.

(D) Labia minora.
$Infundibulum$,$Fimbriae$,and $Isthmus$ are parts of the $Fallopian$ tube (oviduct),which is a part of the internal female reproductive system.
$Labia$ $minora$ is a part of the female external genitalia (vulva).

(A) The correct answer is $A$.
After ovulation,the ovum is captured by the fimbriae of the infundibulum.
From the infundibulum,the ovum moves towards the ampulla,which is the site of fertilization.
From the ampulla,it proceeds towards the isthmus.
If the fallopian tube is blocked at the ampullary region,the ovum cannot pass from the infundibulum to the isthmus.

(C) The correct answer is $C$.
Functional mammary glands are a characteristic feature of all female mammals.
The glandular tissue of each breast is divided into $15-20$ mammary lobes containing clusters of cells called alveoli.
The cells of the alveoli secrete milk,which is stored in the cavities (lumens) of the alveoli.
The alveoli open into mammary tubules.
The tubules of each lobe join to form a mammary duct.
Several mammary ducts join to form a wider mammary ampulla,which is connected to the lactiferous duct through which milk is sucked out.

(A) The female reproductive system consists of a pair of ovaries,a pair of oviducts,a uterus,a cervix,a vagina,and the external genitalia.
Among these,the accessory ducts include the oviducts (Fallopian tubes),the uterus,and the vagina.
Ovaries are the primary sex organs,not accessory ducts.
Therefore,the correct option is $A$.