Human Reproduction
Punjab Board · Class 12 · Biology
Flashcards for Human Reproduction — Punjab Board Class 12 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.
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Get startedWhat are the main components of the male reproductive system?
Answer
The male reproductive system consists of: (1) A pair of testes - the primary organs that produce sperms and androgens; (2) Male sex accessory ducts - rete testis, vasa efferentia, epididymis, and vas …
Why are testes located outside the abdominal cavity in the scrotum?
Answer
The testes are housed in the scrotum, a pouch-like structure located outside the abdominal cavity, because they require a lower temperature than the normal body temperature for spermatogenesis (sperm …
Describe the structure and function of seminiferous tubules.
Answer
Seminiferous tubules are highly coiled tubules found inside the testis, with 250 testicular lobules each containing 1-3 tubules. The inner lining of seminiferous tubules contains two types of cells: (…
What is the role of Leydig cells (Interstitial cells) in male reproduction?
Answer
Leydig cells, also called interstitial cells, are located in the interstitial spaces (regions between seminiferous tubules) in the testis. Their primary function is to synthesize and secrete testoster…
What is the structure of a human sperm, and what is the function of each part?
Answer
A human sperm has four main parts: (1) Head - contains an elongated haploid nucleus and is covered by an acrosome cap filled with enzymes that help penetrate the egg; (2) Neck - a short connecting seg…
Compare the male and female reproductive systems in terms of gamete production.
Answer
Key differences in gamete production: SPERMATOGENESIS (Males): Begins at puberty; Continuous throughout adult life; Produces four equal-sized, motile haploid sperms from each spermatogonium; Over 200 …
What are the main components of the female reproductive system?
Answer
The female reproductive system consists of: (1) Primary organs - A pair of ovaries that produce ova and female hormones (estrogen and progesterone); (2) Accessory ducts - Pair of fallopian tubes (ovid…
Describe the structure and parts of the fallopian tube (oviduct).
Answer
Each fallopian tube (oviduct) is approximately 10-12 cm long and extends from the ovary to the uterus. It has four distinct regions: (1) Infundibulum - the funnel-shaped region closest to the ovary, w…
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