Basic Structure Notes
Tissue
Tissues are 60-90% water that is slightly salty called tissue fluid
When there is excess fluid, this is called edema and an insufficient amount is called
dehydration
Main Types of Tissues
1. Epithelial-covers the body and is main tissue. Also lines the intestinal, circulatory,
respiratory, and urinary tracts. Also forms some of body glands
2. Connective- is the supporting fabric of organs
a. Hard- cartilage and bone (osseous tissue)
b. Softi. adipose (fat)
ii. fibrous connective tissue like ligaments and tendons
iii. liquid- like blood and lymph (vascular tissue)
3. Nerve- special cells called neurons
4. Muscle tissue- produce power and movement
a. Skeletal
b. Cardiac
c. Visceral or smooth (in walls of vessels)