BIO210Y5 Lecture Notes - Lecture 22: Nurse Cell, Mitosis, Rectal Examination
Document Summary
Males not only get rid of urine but also transport semen from areas that are producing sperm and semen where ejaculation takes place. Different accessory structures key ductus deferens, seminal gland, which secretes fluid for semen, bulbourethral gland which lubricates tip. Around gonads is the scrotum, which hold and protects them together. It has one connection with urethra, which pinches during ejaculation. Digital prostate exam is a rectal exam because they share a wall. The reason is the doctor can easily examine from this area to detect any cancer. Know that mature sperm is first produced in gonads, and then spermatozoa travel from epididymis to ductus deferens, then you add semen (which makes it fully 100% mature) and is then directly ejaculated into the penis body. Transverse view of scrotum: seminiferous tubules: contain specialized cells that lead to production of gametes, epididymis travelling down and then to the single ductus tube, the spermatozoa are suspended almost in hibernation.
