Mapa conceptual human body
Valeria Ramirez
Created on September 3, 2024
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Transcript
Epithelial and Connective Tissues
Epithelial
Epithelial
Connective
Connective
Epithelial
Epithelial
Connective
Characteristics:
Classification
Function
Examples
Connective
- By Cell Shape:
- Squamous: Flat and thin (e.g., skin, alveoli).
- Cuboidal: Cube-shaped (e.g., kidney tubules).
- Columnar: Tall and column-like (e.g., digestive tract lining).
- By Cell Layers:
- Simple: Single layer of cells (e.g., lining of blood vessels).
- Stratified: Multiple layers of cells (e.g., skin).
- Pseudostratified: Appears stratified but is a single layer (e.g., respiratory tract).
Simple Squamous: Alveoli of lungs.Simple Cuboidal: Glands and ducts.Simple Columnar: Stomach and intestines.Stratified Squamous: Skin, mouth lining.Pseudostratified Columnar: Trachea lining.
Support (e.g., bones).Protection (e.g., bone, cartilage).Binding of organs (e.g., tendons).Storage (e.g., adipose tissue).Transport (e.g., blood).
1- Cells are closely packed with minimal extracellular matrix.2- Avascular (no blood vessels); nutrients diffuse from underlying tissues.3- Polarity (has an apical surface and a basal surface).4- High regenerative capacity.
1- Fewer cells, more extracellular matrix (ECM).2- Vascular (contains blood vessels) except for cartilage.3- Matrix made of fibers (collagen, elastin) and ground substance.
Loose Connective Tissue:Areolar: Binds organs, supports epithelia.Adipose: Stores fat, insulates, cushions.Reticular: Supports lymphoid organs (e.g., spleen). Dense Connective Tissue:Regular: Parallel collagen fibers (e.g., tendons, ligaments).Irregular: Irregularly arranged collagen fibers (e.g., dermis of skin).Elastic: Elastic fibers (e.g., walls of arteries).
Protection (e.g., skin).Absorption (e.g., intestinal lining).Secretion (e.g., glands).Filtration (e.g., kidney glomeruli).
Areolar: Surrounding blood vessels.Adipose: Under the skin, around organs.Hyaline Cartilage: Nose, trachea.Bone: Skeleton.Blood: Circulatory system.