Lecture 2 Flashcards
(51 cards)
Testes contain what ?
Seminiferous tubules , loos connective tissue , leydig cell
Production of spermatozoa occurs at ?
Seminiferous tubules
Leydig cell produce ?
Testosterone
What are the phases of spermiogenesie
Cap phase , acrosomal phase , maturation phase
in cap phase golgi go to ?
Caudal part of the cell
Flagellum formed by what ?
Distal centriole
Cap in cap phase Is formed by ?
Acrosomic vesicle
The cap has two membrane mention them ?
Inner acrosomal membrane and outer acrosomal membrane
What happen to the spermatic nucleus in acrosomal phase
Elongated
What two new structures are formed in acrosomal phase
The neck and annulus
The neck will become the junction between ……..
Middle piece and head
The annulus will become the junction between……..
Middle piece and principal piece
What is the process where spermatid mature
Spermiation
What is the optimal Tem to produce sperm
2 , 3 degree below body temperature
The head of the sperm contains
Acrosome and nucleus
What is the function of the enzyme in the acrosome
Facilitate the sperm penetration
The mid piece contains ?
Centrioles and mitochondria
What are the sertoli cell function
Nourishment of seminiferous tubules, phagocytosis and add to seminal fluid
What is the function of androgen binding protein
Maintain testosterone level in seminiferous tubules
What is inhibin and activin function
Inhibit FSH , activate FSH
Blood testes barrier prevent
Autoimmune destruction of sperm and immun attack
Blood testes barrier produce
FAS ligand
Leydig cell produce
Testosterone, androgens, Dihydrotestasterone , dehydropiandrostero
Androgen affects ?
Increase bone matrix , BMR, larynx size , oxygen utilization, skin thicknesss