Kalpesh J Gadhvi is teaching live on Unacademy Plus
Human reproduction Presented by Kalpesh Gadhvi
About me Kalpesh gadhvi I am pursuing MBBS from PDU medical college Rajkot My hobbies are to play cricket and listen music You can follow me on unacademy If you like my courses than please rate review recommend and share it . o . .
. The ejaculatory duct stores the sperms and transports them to the outside . The urethra starts from the urinary bladder, extends through the penis and opens via the urethral meatus. . Accessory glands include: o A pair of seminal vesicles o Prostate gland o A pair of bulbourethral glands . The secretions of these glands make up the seminal plasma, and provide nutrition and a medium of motility to the sperms
FEMALE REPRODUCTIVE SYSTEM Uterine fundus Uterine cavity Isthmus Ampulla Infundibulum Fallopian tube Endometrium Myometrium Perimetrium Ovary Fimbriae Cervix Cervical canal Vagina
. It is located in the pelvic region: . It includes: o A pair of ovaries o A pair of oviducts o Uterus o Cervix o Vagina o External genitalia o Mammary glands (not part of the reproductive system, but aids in child care)
Ovaries . They are the primary female sex organs. They produce the ovum and other ovarian hormones. . They are located in the lower abdomen, and are 2 to 4 cm in length . They are connected by ligaments to the pelvic walls and to the uterus. . Each ovary is covered by epithelium, and contains the ovarian stroma. . The ovarian stroma is made up of: o Peripheral cortex o Inner medulla
Oviducts . They are also called fallopian tubes. . They are 10 to 12 cm long, and extend from the ovary to the uterus. . The part of each oviduct lying towards the ovary is funnel shaped, and is called infundibulum.lt has finger-like projections called fimbriae. . The infundibulum leads to the ampulla, and then to the isthmus, which has a narrow lumen opening into the uterus.
Uterus o It is also called womb, and is pear shaped. . It is connected to the pelvic walls by ligaments. . The uterine wall consists of: o External perimetrium o Middle myometrium o Internal endometrium, which lines the uterine cavity . The endometrium undergoes changes during the menstrual cycle.
Cervix and Vagina . The cervix connects the uterus to the vagina. . The cervix and the vagina constitute the birth canal External Genitalia . Consists of: o Mons pubis - Fatty tissue covered by skin and pubic hair o Labia majora - Extends from mons pubis and surrounds the vaginal opening o Labia minora - Fold of skin beneath the labia majora o Hymen Partially covers the vaginal opening o Clitoris - Lies at the junction of labia minora
Mammary glands . Present in all female mammals . It is paired and is glandular. Each breast contains 15 to 20 mammary lobes with alveoli which secrete milk. The alveoli open into the mammary tubules, which unite to form memory duct . Many mammary duct combine to form lactiferous duct
Spermatogenesis Spermatogenesis patogonium Spermatozna Secondary spermatocyte Spermatid Pnmary spermatocyte Sertoli cell Spermatogonium Primary spermatocyte Meosis I hy Meiosis I D O Spermatids Mature sperm cells
Structure of a Sperm -Acrosome Head Nucleus Neck- Centrioles Midpiece Mitochondria -Tail Sperm cell