The above diagrams shows human male reproductive system (one side only )
(a) Identify 'X' and write its location in the body .
(b) Name the accessory gland 'Y' and its reaction.
(c) Name and state the function of 'Z'.

Explanation

(a) X`rarr`Testis
The seminiferous tubules of testis open into the vasa efferentia through rete testis.
(b) `Y rarr` Seminal vesicle
The male accessory glands include paired seminal vesicles. Secretion of this gland constitute the seminal plasma which is rich in fructose, calcium and certain enzymes.
(c) `Z rarr` Epididymis
The epididymis leads to vas deferens that ascends to the abdomen and loops over the urinary bladder. It receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct.