Zusammenfassung der Ressource
Anatomy Test 1
- Homeostasis
- Definition: adjustments made in the body to maintain a level in
a certain range
- pH, blood pressure, breathing rate
- Stimulus
- receptor/ sensors
- Control center
- effector
- homeostasis restored
- Feedback
- Negative: opposes initial change;
corrective adjustment opposes
original deviation from normal level
- Most body systems use this
- Positive: amplifies initial change
so controlled variable continues
to move in the direction of initial
change
- Breast feeding and platelet clotting
- Organization
- Cellular: cells and their parts
- Tissue: groups of similar cells that perform similar functions
- Epithelial: covers exposed surfaces and body cavities
- Connective:
protects,
supports, and
binds
structures and
organs
- Muscle: provides movement
- Nervous:
conducts
nerve
impulses for
communication
- Organ: two or more tissues that perform specific function
- Organism: all body systems working together