« previous next »

Author Question: What happens to semen directly after ejaculation? What will be an ideal ... (Read 60 times)

appyboo

  • Hero Member
  • *****
  • Posts: 527
on: Jun 22, 2018
What happens to semen directly after ejaculation?
 
  What will be an ideal response?

Question 2

Semen normally contains secretions from the seminal vesicles and the prostate gland, and about 50 to 150 million sperm per milliliter. Why is sperm required in such large numbers?
 
  What will be an ideal response?


taylorsonier

  • Sr. Member
  • ****
  • Posts: 377
Reply #1 on: Jun 22, 2018
Answer to Question 1

Directly after ejaculation, the semen initially coagulates into a thick mucus-like liquid, probably an evolutionary development to aid in procreation by decreasing the chances it would leak back out of the vagina. after 5 to 20 minutes, the prostatic enzymes contained in the semen cause it to thin out and liquefy. if it does not liquefy normally, coagulated semen from heterosexual men may be unable to complete its movement through the cervix and into the uterus.

Answer to Question 2

Sperm is required in such large numbers because during procreation only a small fraction of them ever reaches the ovum during procreation. Also, the sperm work together to achieve fertilization; for example, many die and block the os of the cervix for the other sperm, and the combined enzyme production of all sperm are necessary for a single spermatozoon to fertilize the ovum.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl First-pass effect: (a) drugs are absorbed; (b) drugs enter hepatic portal circulation and go directl
Some column-mounted ignition switches act directly on the contact points, whereas others use a link ... Some column-mounted ignition switches act directly on the contact points, whereas others use a link ...
The excitatory and inhibitory signals that directly influence the activity of a motor neuron. The excitatory and inhibitory signals that directly influence the activity of a motor neuron.
Direct immunoassays. A labeled antibody binds directly to the antigen. The label on the antibody can ... Direct immunoassays. A labeled antibody binds directly to the antigen. The label on the antibody can ...
Male Reproductive System - Semen Male Reproductive System - Semen
Video: Central Nervous System Animation

For a complete list of videos, visit our video library