Reproductive System - Male System Flashcards
What is the Ejaculatory Tract Regulate?
It regulates the movement of semen into the urethra.
What does the sphincter regulate?
The sphincter regulates voiding of the urine from the bladder.
Urethra conducts urine and semen but NEVER….
Are released at the same time.
What is an Erection, and how is it caused?
An erection is caused due to blood flow into the erectile tissue of the penis.
What is an Erection, and how is it caused?
An erection is caused due to blood flow into the erectile tissue of the penis.
How does the Parasympathetic and the Sympathetic N.S. work with erections?
The parasympathetic nervous system causes the arteries leading to the penis to dilate which increases the blood flow, veins that carry blood away from the penis become compressed. From there, the stimulation of the sympathetic nervous system causes the ejaculation of semen.
3 Main Functions of the Male Reproductive System
1.) Produce gamates
2.) Deliver gamates
3.) Protect and support gamates
Parts of the Sperm Cell Head..
Cell Memberane, Nucleus - haploids (23 chromosomes), acrosomes - contain digestive enzymes that dissolve the outer layer of the egg, and centriole.
Middle Part of the Sperm..
Is the Mitochondria, the energy source.
The Tail part of the Sperm cell..
Also known as the Flagellum, increases motility movement of tail and propels sperm.
Specifically, where is sperm produced; which tubule?
Sperm is produced in the Testes, each testis is filled with twisting tubules called seminiferious tubules.
Step 1 of the Sperm Stages..Seminiferious Tubules
The Seminiferious Tubules are lined with sperm producing cells called spermatogenia. (A diplod, contains 46 chromosomes)
Step 2 of Sperm Cell Stages…
They divide through the process of meiosis and become spermatocytes, which are haploids (23 chromosomes)
Step 3 of Sperm Cell Stages..
Within 9-10 weeks, the spermatocytes begin to differientiate into spermatids, which then turn into sperm cells.
Where do the sperm cells mature?
The sperm cells mature in the epidermis which is a coiled tube that is located in the outer layer of the testes.
