anatomy CH.1 test (everything)

Homeostasis

The relative constancy of the body’s internal environment

Charatceristics of Human Life

Organization, Metabolism, Reponsiveness, Movement, Growth, Reproduction, Development

2. Metabolism

reactions in the body, requires energy

3. Responsiveness

ability to sense changes within or around the organism and react to them

4. Movement

self initated change in position, motion of internal parts

5. Growth

increase in body size (also repair)

6. Reproduction

passing DNA to new individuals

7. Development

changes in the body, including differentiation

Effectors

muscles or glands that respond to deviation from the set point

High Blood Glucose

Blood sugar rises, pancreas releases insulin, insulin lowers blood sugar

Low Blood Sugar

Gluclose levels drop, pancreases releases glucagon, liver breaks down stored glycogen into gluclose, blood sugar rises

chemical level

atoms and molecules

cellular level

basic units of life

tissue level

groups of similar cells working together

organ level

2 or more tissues forming a structure

organ system level

organs working together

organism level

the entire human body