Anatomy Exam
Week 2
Reading Summary : Chap 1-3
Chapter 1
Anatomy: studies the structure of body parts and their relationship to one another. Can be seen, felt, examined.
Physiology: concerns the function of the body in other words, how the body parts work and carry out their life-sustaining activities
Complementary of structure and function
Function reflect structure, what a structure can do depends on is specific form
Levels of structural organization:
Cells – smallest living unit
Tissues – group or similar cells that have a common function
Organ level – discrete structure composed of atleast 2 tissues
Organ system – organs that work together to accomplish common purpose
Organism – sum of all structural levels
Necessary life function
1- maintaining boundaries,: internal environment remains distincts from external
2- Movement
3- Responsiveness: ability to sense changes in the environment
4- Digestion: breaking down ingested food
5- Metabolism: includes all chemical reaction in body cells
6- Excertion
7- Reproduction
8- Growth
Survival Needs
1) Nutrients – used for cell building and energy
2) Oxygen - chemical reaction that make energy are oxidation
3) Water
4) Body Temperature
5) Appropriate atmospheric pressure
Homeostasis
- Ability to maintain relatively stable internal condition even though the outside world changes
Simuli – receptor – Control center – effector
Negative feedback
- The output shuts off original effect of stimuli or reduce intensity
Positive feedback
- The response enhances the original stimulus so that the response is accelerated
Chapter 2
Chemistry comes Alive
Matter: anything that takes up space and mass
Energy: capacity to do work or put matter into motion
Potential (stored energy)
Kinetic ( active and working energy)
Elements: substances that cannot be decomposed into smaller substances
Atoms: made of protons, neutrons and electrons
Reading Summary : Chap 1-3
Chapter 1
Anatomy: studies the structure of body parts and their relationship to one another. Can be seen, felt, examined.
Physiology: concerns the function of the body in other words, how the body parts work and carry out their life-sustaining activities
Complementary of structure and function
Function reflect structure, what a structure can do depends on is specific form
Levels of structural organization:
Cells – smallest living unit
Tissues – group or similar cells that have a common function
Organ level – discrete structure composed of atleast 2 tissues
Organ system – organs that work together to accomplish common purpose
Organism – sum of all structural levels
Necessary life function
1- maintaining boundaries,: internal environment remains distincts from external
2- Movement
3- Responsiveness: ability to sense changes in the environment
4- Digestion: breaking down ingested food
5- Metabolism: includes all chemical reaction in body cells
6- Excertion
7- Reproduction
8- Growth
Survival Needs
1) Nutrients – used for cell building and energy
2) Oxygen - chemical reaction that make energy are oxidation
3) Water
4) Body Temperature
5) Appropriate atmospheric pressure
Homeostasis
- Ability to maintain relatively stable internal condition even though the outside world changes
Simuli – receptor – Control center – effector
Negative feedback
- The output shuts off original effect of stimuli or reduce intensity
Positive feedback
- The response enhances the original stimulus so that the response is accelerated
Chapter 2
Chemistry comes Alive
Matter: anything that takes up space and mass
Energy: capacity to do work or put matter into motion
Potential (stored energy)
Kinetic ( active and working energy)
Elements: substances that cannot be decomposed into smaller substances
Atoms: made of protons, neutrons and electrons