. Describe in brief the role of (i) testis (ii) seminal vesicle


Describe  in  brief  the role of (i) testis  (ii) seminal vesicle, (iii) vas deferens, (iv) ureter and  (v)  prostate  gland  in  human  male  reproductive system

Best Answer

Role in human male reproductive system:

 

(i) Testis. Testis is the main reproduction organ of the male reproductive system. There are two testes located outside the abdominal cavity in scrotum because sperm formation requires a lower temperature than the normal body temperature. So testis produces male germ cells (sperms). Testis also produces male sex hormone (testosterone).

 

(ii) Seminal   vesicle. Seminal vesicle is a pair of male reproductive glands present between the rectum and urinary bladder. It secretes seminal fluid which is alkaline and neutralises the acidity of urine an activates sperms.

 

(iii) Vas deferens. Vas deferens or sperm duct is a long tube which joins the testes with another tube called urethra coming from the bladder. The sperms formed in the testis are delivered through the vas deferens to urethra.

 

(iv) Ureter. These are a pair of long, narrow, thin-walled and  tubular  structures which start  from the hilum of the kidneys,  run downward and  open in· urinary  bladder. These conduct the urine from the kidneys to urinary bladder

 

(v) Prostate gland. It is a single, large sized & lobulated gland present just below the urinary bladder. It adds its secretion to the sperm which provides nutrision to the sperms

 

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