Histology Level 1 Sem 1 2024 PDF

1 Histology 2024 HISTOLOGY level 1 - sem 1 10 L.E lecture 1 BY A.G 0  1 Histology lec...

1 Histology 2024 HISTOLOGY level 1 - sem 1 10 L.E lecture 1 BY A.G 0  1 Histology lec 1 Cell structure (1)  The cell is composed of:  GMEL  BY A.G 1  1 Histology 1 o Def o Thickness  E.M :  Molecular structure of the cell membrane  The cell membrane is formed of: BY A.G 2  1 Histology 1) Lipid molecules o   o   1. Phospholipids o 2. Cholesterol o 2) Protein molecules ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ BY A.G 3  1 Histology 3) Carbohydrate molecules   Functions of the cell membrane Exchange of materials   Endocytosis ▪ ▪ Exocytosis o → Functions of cell coat:  BY A.G 4  1 Histology 2 o Def Powerhouse of the cell Size & o shape o o  Number  o o Sites o  BY A.G 5  1 Histology The routine stain for light microscopy (LM) → by (H & E) Hematoxylin (H) Eosin (E) Nature Colour ▪ ▪ E.M.  LM (light microscopy) of mitochondria:  BY A.G 6  1 Histology  Electron microscopy (EM): Outer membrane o o Inner membrane o Intermembranous space o Mitochondrial matrix Functions of mitochondria BY A.G 7  1 Histology 3 o Def o Size o L/M E/M o o o o o  Types: Free ribosomes o o Attached ribosomes BY A.G 8  1 Histology Free ribosomes Attached ribosomes Functions of ribosomes o Free ribosomes  o Attached ribosomes   BY A.G 9