The abdominal passage which connects the abdominal cavity with the scrotal sac in mammals is known as

Males have a number of internal accessory organs. Which one$(s)$ is/are responsible for secreting fluid containing fructose and prostaglandins?

Given below are two statements:
Statement-$I$: The scrotum helps in maintaining the low temperature of the testes.
Statement-$II$: Low temperature,compared to the normal internal body temperature,is necessary for spermatogenesis.
In the light of the above statements,choose the most appropriate answer from the options given below.

In $Cryptorchidism$,the testes fail to descend into the scrotum. What is the surgical procedure to bring the testes into the scrotum called?

Given below is a diagrammatic sketch of a portion of the human male reproductive system. Which of the following parts contributes to the maximum portion of semen?

What is the correct shape and length of the human testis?