Presentation on theme: "Tissues Chapter 4. 5/8/2015copyright (your organization) 20032 What is a Tissue? A group of SIMILAR cells that function together to carry out specialized."— Presentation transcript:
5/8/2015copyright (your organization) 20036 Forms the coverings of all of the body’s surfaces Lines body cavities Functions: –Protection –Secretion –Absorption –Excretion –Filtration –Diffusion –Sensory Reception
5/8/2015copyright (your organization) 20037 Types of Epithelial Tissue
5/8/2015copyright (your organization) 200317 Functions Bind structures together Supports the organs and the body (Framework) Stores fat Transports substances Protects from disease Helps repair tissue damage
5/8/2015copyright (your organization) 200326 Components Made up of cells that can shorten or contract in order to produce movement in body parts Well supplied with blood vessels Cells are long and slender (muscle fibers) Actin and myosin are contractile proteins. –http://www.sci.sdsu.edu/movies/actin_ myosin.htmlhttp://www.sci.sdsu.edu/movies/actin_ myosin.html
5/8/2015copyright (your organization) 200327 3 Types of Muscle Tissues 1.Skeletal->regular (voluntary) Aka. Striated (striped) Many nuclei per cell b/c extremely long 2.Smooth->intestines (involuntary) Non-striated 1.Cardiac->heart (involuntary) Striated
5/8/2015copyright (your organization) 200329 Located in the brain, spinal cord, and nerves Coordinates and controls many of the bodies activities Stimulates muscle contractions Creates awareness Has a role in emotions, memory, and reasoning.
5/8/2015copyright (your organization) 200332 Flat sheet of pliable tissue that covers or lines a body part 1.Mucous Membranes- > line body cavity that opens to the outside Ex: Respiratory and Digestive Tracts 2.Serous Membranes- > line body cavity that does not open to the outside ~ Layers 1.Parietal-attaches to cavity wall 2.Visceral-attaches to organs ~Types 1.Pleural 2.Pericardial 3.Peritoneum