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Male Reproductive System, IMG_6933, IMG_6934, IMG_6935, IMG_6936, IMG_6937…

- - - - Leydig cells are located in the
        interstitial (connective) tissue
      - ound nuclei /pale-stained cytoplasm
      - hormone production,
        testosteroneR
  - - - Spermatogonia
        
        oval nuclei
        
        near the basement membrane
        
        type A (stem cells)
        
        type B cells
      - Spermatocytes
        
        large nuclei โครโมโซมติดกันแน่นๆเต็มcell
        
        Derived from type B
        spermatogonium undergo mitosis
        
        primary and secondary spermatocytes
      - Spermatids
        
        มีรูปร่างหลากหลาย
        
        early, intermediate, late spermatids,
        based on the appearance of the nucleus.
      - Spermatozoa
        
        derivatives of spermatid
        
        Head
        
        flattened head
        
        5 µm long and is
        surrounded by Plasmalemma
        
        Tail
        
        subdivided into four regions neck, middle
        piece, principal piece, and end piece
    - - Blood-testis barrier
      - Phagocytosis
      - Exocrine & Endocrine Secretions
        
        Fructose-rich fluid
        
        Androgen binding protein (ABP)
        
        nhibin & Activin
        
        Antimüllerian hormone
  - - - Meiosis I
    - - Meiosis II
    - - Spermiogenesis
- - - - columnar cells with elongated nuclei
        and apical stereocilia
    - - they are short with round nuclei
    - - Storage and maturation site
        for sperm
      - Absorption of excess testicular fluid
  - - - middle circular layer
      - outer longitudinal layer
      - inner longitudinal layer
    - - Transports sperm from epididymis to ejaculatory duct
- - - - Mucosal folds
        produce fragmental central lumen
    - - Pseudostratified columnar
        with many secretory granules
    - - Prostaglandins
      - Fibrinogen
      - Fructose
  - - - Submucosalgland
      - Maingland
      - Mucosal gland
    - - Stroma
        
        fibromuscular connective tissue
      - Parenchyma
        
        tubuloalveolar glands
        
        pseudostratified
        columnar epithelium
      - Prostatic capsule
        
        outer layer ; dense irregular
        collagenous connective tissue
        
        innerlayer;smoothmusclefibers
    - - glycoproteins
      - enzymes
      - lipids
- - - - pseudostratified columnar epithelium
    - - stratified squamous epithelium