Spermatogenesis Flashcards
What is the spermatogenesis?
The synthetisation of spermatozoa
Where does the spermatogenesis is process?
In the seminiferous tubule
What happened in the epididymis
The maturation of the sperm cell
What are the different phases of spermatogenesis?
- Multiplication
- Growth
- Maturation
- Transformation
- Liberation
What happened during the multiplication to the spermatogonia?
Mitosis
In what the spermatogonia A are transformed?
In spermatogonia B
The Growth is the begening of what?
Mitosis 1
The Meiosis 1 transform 1 … into 2 ….
Primary spermatocyte Secondary spermatocyte
What are the secondary spermatocyte compared to the primary spermatocyte
Haploide N
What’s the process during the maturation?
Meiosis 2
During the meiosis 2 secondary spermatocyte become
4 early spermatids
During the transformation how are called the spermatids and what is their shape?
Late spermatids Round
During the transformation what happened to the nucleus?
Decrease, RNA
During the transformation what happened to the Golgi aparatus?
Acrosome
During the transformation what happened to the centriole?
Flagellum (Tail)
During the transformation what happened to the mitochondria?
Mid piece
During the transformation what happened to the citoplasm?
Residual body
At the end of the transformation what have became the late spermatids?
Spermatozoa
During the liberation what way the spermatozoa follows?
Lumen - Epididymis
What is the structure of a mature spermatozoa? (From to top to bottom)
Head - Neck - Middle piece - Flagellus
With whqt the semens is composed?
Spermatozoa + seminal plasma
What happened to the concentration of spermatozoa when the volume increase?
It decrease
What are the 2 types of abnormal spermatozoa?
Compensable defects and uncompensable defects
What the uncompensable defects can’t do?
Fertilized the Eggs
