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(a) Trace the path of sperms from where they are produced in human body to the exterior. (2)(b) Write the functions of secretions of prostate gland and

seminal vesicles in hum.


(a) The formation of germ-cells or sperms takes place in the testes. The sperms formed are delivered through the vas deferens which unites with a tube coming from the urinary bladder. Along the path of the vas deferens, prostate glands and the seminal vesicles add their secretions so that the sperms are now in a fluid which makes their transport easier and this fluid also provides nutrition to the sperms.

(b) Seminal vesicles and prostate glands secrete fluid which(i) provide nutrients to the sperm in the form of fructose, calcium, and some enzymes.(ii) act as lubricant and enhance sperm motility.
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