Animal Tissues Flashcards
The study of tissues and their structures.
Histology
A group of cells with similiar structures and functions.
Tissues
What are the four major types of animal tissues?
1) Epithelial 2) Connective 3) Muscle 4) Nervous
It covers external and internal surfaces throughout the body. The outer layer of the skin and found in the lining of cavities such as digestive tract, respiratory passages, blood vessels, etc.
Epithelial Tissues
What are the 2 classification of epithelial tissues based on layers?
Simple and Stratified
What are the classifications of epithelial tissues bases on shapes?
Squamous, Cuboidal, Columnar
Consists of single layer of flat, often hexagonal cells that allow substance to pass by diffusion and osmosis. Located at the lining of blood vessels, alveoli of the lungs.
Simple Squamous
Consists of a single layer of cube shaped cells that secrete and absorb substances. Located at kidney tubule glands.
Simple Cuboidal
Consists of a single layer of tall, narrow cells that secrete and absorb substances and aid in the movement of particles. Located in the lungs, lining of stomach, intestines, gallbladder, etc.
Simple Columnar
Consists of a single layer of cells that synthesize and secrete mucus into the free surface. Located at the lining of nasal cavity, pharynx and trachea.
Pseudostratified columnar
Consists of several layers of cells that are cuboidal in the basal layer and progressively flattened towards the surface. Located at the outer layer of the skin.
Stratified Squamous
Characterize by large amounts of extracellular materials that separates cells from one another.
Connective Tissues
2 types of fibrous connective tissue?
Loose and Dense
2 types of supporting connective tissue?
Cartilage and Bone
Type of fluid connective tissue?
Blood