Describe in brief the role of
(0) testis
(ii) seminal vesicle,
(iii) vas deferens,
(iv) ureter and
(v) prostate gland in human male reproductive system.
Answers
Explanation:
(i)Testis: These are the main reproductive part in male reproductive system and the formation of germ-cells or sperms takes place in testis. These are located outside at the abdominal cavity in Scrotum due to low temperature requirement than the body temperature for the sperm formation. These are responsible for secretion of hormone known as testosterone.
(ii) Seminal vesicles: These are the glands which add their secretions so that sperms are now in a fluid and can be easily transported and this fluid also provides nutrients
(iii) Vas deferens: The sperms are delivered through vas deferens which unites with a tube coming from the urinary bladder.
(iv) Ureter: These are a pair of long, narrow, thin walled and tubular structure which starts from kidneys and open in urinary bladder. These are responsible for conducting urine from kidneys to urinary bladder.
(V) Prostate gland: These are the glands which along with seminal vesicles, add their secretions so that sperms are now in a fluid and can be easily transported and this fluid also provides nutrients
Answer:
(a) The role of seminal vesicles and the prostate gland are as follows:
(i) Seminal vesicles produce seminal plasma which is in the form of fluid makes the transport of sperms smooth.
(ii) Prostate gland secretes prostatic fluid that keeps the sperms alive and helps them to swim vigorously.
(b) Two functions performed by testis
in human beings are as follows:
(i) Formation of sperms takes place in testis.
(ii) They secrete the hormone testosterone which regulates the formation of sperms and brings changes in appearance of boys at the time of puberty.
Explanation: