Internal fertilization
Internal Fertilization
Internal fertilization (pronunciation: /ɪnˈtɜːrnəl ˌfɜːrtɪlaɪˈzeɪʃən/) is a reproductive process by which sperm from a male is deposited inside the reproductive tract of a female during copulation, leading to the fertilization of the ovum inside the female body.
Etymology
The term 'internal fertilization' is derived from the Latin words 'internus' meaning 'inside' and 'fertilis' meaning 'fruitful'. It refers to the process of fertilization that occurs inside the body of the organism.
Process
Internal fertilization involves the transfer of sperm from the male to the female through copulation. The sperm then travels up the female's reproductive tract to the ovum, where fertilization occurs. This process is common in many terrestrial animals, including mammals, reptiles, and birds.
Advantages
Internal fertilization has several advantages over external fertilization. It allows for greater protection of the fertilized eggs from predators and environmental conditions. It also allows for more precise timing of reproduction and greater parental care.
Related Terms
- Copulation: The act of sexual procreation between a male and a female.
- Ovum: The female reproductive cell or egg.
- Sperm: The male reproductive cell.
- External fertilization: A mode of reproduction in which a male animal's sperm fertilizes a female animal's egg outside of the female's body.
External links
- Medical encyclopedia article on Internal fertilization
- Wikipedia's article - Internal fertilization
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