Spermatogonia
Spermatogonia
Spermatogonia (pronunciation: sper·ma·to·go·nia) are the male germ cells that originate in the testes and are responsible for the initiation of spermatogenesis, the process of sperm production.
Etymology
The term "spermatogonia" is derived from the Greek words "sperma" meaning seed and "gonia" meaning generation or birth.
Definition
Spermatogonia are the undifferentiated male germ cells found in the outermost layer of the seminiferous tubules in the testes. They are diploid cells, meaning they contain two sets of chromosomes. Through the process of mitosis, spermatogonia divide and differentiate into primary spermatocytes, which then undergo meiosis to form spermatozoa, the mature male gametes.
Types
There are three types of spermatogonia: Type A dark (Ad), Type A pale (Ap), and Type B. Type Ad cells are reserve spermatogonia, Type Ap and B cells are proliferative spermatogonia, which will eventually differentiate into spermatozoa.
Related Terms
- Spermatogenesis: The process of sperm cell development, initiated by spermatogonia.
- Spermatocyte: A cell that is derived from spermatogonia and undergoes meiosis to form spermatozoa.
- Spermatozoa: The mature male gametes that are capable of fertilizing an egg to form a zygote.
- Testes: The male reproductive organ where spermatogonia are located.
- Seminiferous tubules: The specific location in the testes where spermatogonia reside.
External links
- Medical encyclopedia article on Spermatogonia
- Wikipedia's article - Spermatogonia
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski