1. Muscular & Neural Tissue
Interactive notes: pgs

2. Muscle Tissue Specialized for movement or contraction Three types
Skeletal
Cardiac
Smooth

3. Skeletal Muscle Long slender cells called muscle fibers Multinucleated
Striated (banded)
Voluntary movement
Adult cells do not divide
Division through satellite cells (stem)
Can partially repair itself

5. Cardiac Muscle Only in the heart Cell is a cardiocyte
Usually 1 nucleus
Branching network of cells
Intercalated discs allow for simultaneous muscle contraction
Striated INVOLUNTARY muscle
Limited repair

7. Smooth Muscle
Walls of blood vessels, around bladder, respiratory, circulatory, and digestive tracts
Small spindle shaped cell
Can divide and repair
Nonstriated INVOLUTARY muscle

9. Neural Tissue Conduct electrical impulses throughout the body
Two types
Neurons
Longest cells in the body
Cell body (w/nucleus), axon (nerve fibers, dendrites
Cannot divide and limited ability to repair
Neuroglia
Support and repair neural tissue and supply nutrients to neurons

11. Tissue Injuries & Repair
Homeostasis after injury involves two stages
Inflammation
Coordination of multiple tissues
Swelling, redness, warmth, & pain
May indicate infection
Dead tissue is Necrotic
May accumulate pus (enclosed pus is an abscess)
Regeneration
Tissue level
Damaged tissues repaired and replaced

12. Aging and Tissue Structure/Cancer
Effectiveness of repair decreases with age
Hormonal Triggers
More Sedentary Lifestyle
Cancer rates increase
Chemical exposure and environmental factors
Cummulative