Seminal Vesicles Physiology Notes

Seminal Vesicles

Structure Of Seminal Vesicles

Seminal vesicles are the paired glands situated in the lower abdomen on either side of the prostate gland behind the urinary bladder.

• Each seminal vesicle is a hollow sac of irregular shape and lined by a complexly folded mucous membrane. The mucous membrane is formed by pseudo-striated columnar epithelium. These epithelial cells are secretory in nature.
• The secretion from seminal vesicles is called fluid. Seminal fluid is added to semen via arnpu&. i f vas deferens.

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Properties And Composition Of Seminal Fluid

Properties

The seminal fluid is mucoid and viscous in nature. It is neutral or slightly alkaline in reaction. It adds to the bulk of semen as it forms 60% of the total semen.

Composition

The seminal vesicles secrete several important substances.  for the products of seminal fluid.

Functions Of Seminal Fluid

1. Nutrition To Sperms

The fructose and other nutritive substances in a seminal fluid are utilized by sperms after being ejaculated into the female genital tract.

2. Clotting Of Semen

Fibrinogen from seminal fluid is converted into the r, vacuum as soon as semen is ejaculated.

3. On Fertilization
The prostaglandin of seminal fluid enhances fertilization of the ovum by the following processes:

1. Increasing the receptive capacity of cervical mucosa for sperms
2. Causing reverse peristaltic movement of the uterus and fallopian tubes. This, in turn, increases the rate of transport of sperm in the female genital tract during coitus.