Reproductive System Flashcards
What are the 4 components of the ducts?
1- Ejaculatory Duct
2- Urethra
3- Ductus (Vans) Deferens
4- Epididymis
What are the 3 accessory glands? What are their functions?
Adding secretions to the ducts during process of ejaculation
1- Seminal Vesicle (bulk of semen volume)
2- Prostate Gland (sperm activation)
3- Bulbourethral gland (calpers gland). Produces muscus to neutralize residual urine in the urethra.
What are the overall functions of the gonads, accessory glands, and ducts?
gonads: produce sperm and hormones
accessory glands: secrete products for sperm movement
ducts: carry sperm and glandular secretions
What are the 3 features of the scrotum that ensure its function
1) Suspended at different heights (prevents compression)
2) Outside of body (sperm production needs a temp cooler than body temp)
3) Divided by a septum (prevents infection from spending to each other)
What are the 3 functions of the semineferous tubules
Sperm and hormones and germinal epithelial tissue
What happens at the rete testis?
Partial maturation of sperm and it helps with sperm movement by fluid secretions from cells in the rete testis that get beat by cilia
What is the function of the efferent ductules given its name? How does it achieve this?
Carry sperm! cilia
What are the 3 functions of the epididymis?
The epididymis has 3 components head, body and tail.
Matures sperm as it moves thru head and body and store sperm at tail. Sperm also stored in vas deferens. If sperm is not used it gets absorbed by the epididymis.
What is the ejaculatory duct?
Where the vas deferens and the duct of the seminal vesicle meet
What does the seminal gland do?
Makes up bulk of semen volume. Secretes an alkaline fluid that contains (fructose, citric acid, prostaglandings and other things to help sperm motility and fertilizing capacity)
What does the prostate gland do?
Encricles the urethra below the bladder and during ejaculation (smooth muscles in the gland contract) helping the secretions that the prostate gland provides move into the urethra. Associated with sperm activation. Acidic, contains nutrients, some enzymes and prostate specific antigen?
What does the bulbourethral gland do?
Neutralizes acidic urine left in urethra and mucus can help lubricate penis during sex
How does the oocyte travel?
From the ovarian cortex, within a follicle, to the oviduct, to the uterus
Milk pathway
1) Alvelous producing milk in the lobule
2) Lactiferous duct
3) Lactiferous sinus
Summary of spermatogenesis
Spermatogonium stem cells (A and B). A maintains stem cells. B migrates away and differentiates
[Differentiate]
Primary spermatocyte
[meiosis I]
Secondary spermatocyte
[meiosis II]
Spermatid
[differentiate]
Sperm
