Page 69 - EM BIOLOGY NOTES 10TH CLASS PSR DIGITAL BOOKS

DRAWING DIAGRAMS - PARTS - PROCEDURE

MALE REPRODUCTIVE SYSTEM Male reproductive system

1. In testis males, two testies are located in pocket like
structure, outside the body wall is called scrotum (or) scrotal sac.
2. Each testis has several lobules.
3. Each tobule contains several seminiferous tubules.
4. The spermatozoa produced in very large number in that tubules.
5. Vas-efferentia collects spermatozoa from the tubules.
6. Vas-efferentia forms epididymis. Here sperms are stored
temporarily and moved into vasdeferens then to urethra of penis and sends
out of the body.
7. There are 5 accessory glands include in M.R.P. They are
1 prostrate, 2 seminal vesicles and 2 cowper’s glands.
8. These accessory glands secrete a fluid called Semen. This provides
nutrients for sperm to keep alive and helps as a medium for the movement
of the sperms.
SPERM CELL Structure of Sperm cell

1. Sperms are male gametes. How to draw
pl. scan QR
2. They are produced in male gonads called Testis.
3. They are micro-scopic and motile.
4. They have an oval head piece, a neck, a middle piece and a tail.
5. Head piece consists a large haploid nucleus. It carries the characters from
parent to offspring.
6. A sac like structure called Acrosome is present on the head.
7. Neck is short, it connects head with middle piece.
8. Middle piece contains several Mitochondria which produce energy required for
the movements of sperm.
9. A long tail attached to the middle piece. It helps in the swimming of sperm to
RAJU’S NATURAL SCIENCE ACADEMY reach the ovum.
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