Includes both the layers (first) and the shape of the cells (second)
i.e. stratified cuboidal
Columnar
قسمة الظهارة
Naming Epithelia
The name may also include any accessory structures
Goblet cells - ملایا گیا
اهداب
تکا
لاتيع القيمة اتفاقية
Special epithelial tissues (don't follow naming convention)
Naming Epithelia
Psuedostratified
Transitional
Classifications of Epithelia
Squamous
Cuboidal
Columnar
Se
Describes shape of cells
Squamous cells
Wider than tall (plate or "scale" like)
Cuboidal cells
As wide as tall, as in cubes
Columnar cells
Taller than they are wide, like columns
Naming the epithelia
Includes both the layers (first) and the shape of the cells (second) i.e. stratified cuboidal
Epithelia names
Squamous
Cuboidal
Columnar
اتقالية
Transitional Epithelium
Transitional Epithelium
Basal cells usually cuboidal or columnar
Superficial cells dome-shaped or squamous
Relaxed state
Stretched state
الأقبيةالصادرة
Esau G
الأقبيةالصامة
Connective Tissue
Most diverse and abundant tissue
Main classes of Connective Tissue
Connective tissue proper
Cartilage
Bone tissue
Blood
Components of Connective Tissue
Cells (varies according to tissue)
Matrix (Fibers varies according to tissue)
Ground substance (varies according to tissue - dermatin sulfate, hyaluronic acid, keratin sulfate, chondroitin sulfate...)
Common embryonic origin-mesenchyme
الاصل حنيني متحرك الشائع
In bacteria cell, there are few, if any, internal compartments, and while they contain simple structures like ribosomes, most have no membrane-bounded organelles
Bacteria do not have a true nucleus
Genetic material or bacterial chromosome
دائرة من DNA
The entire cytoplasm is one unit with no internal support structure (the strength of the cell comes primarily from its rigid wall)