Week 1 Flashcards
(77 cards)
Anatomy
The study of structure
In Greek, it means “ cutting up”
Physiology
The study of function
In greek, it means “relationship to nature”
Characteristics of Living organisms (there are 7)
- Cellular composition
- Metabolism
- Growth
- Excretion
- Responsiveness/ Irritability
- Movement
- Reproduction
Characteristics of Living organisms:
Cellular composition
Cells are the basic unit of life
1. Smallest organism to carry out the function of life.
2. All living organisms are composed of cells.
Characteristics of Living organisms:
Metabolism
Meta = all together
Organisms that carry out a # of chemical reactions.
Characteristics of Living organisms:
Growth
Where building outweights breaking down procces
1. The growth of individual cells in size.
2. Increased # of cells.
Characteristics of Living organisms:
Excretion
An organism process to eliminate potentially toxic waste products produced by metabolism.
Characteristics of Living organisms:
Responsiveness/ Irritability
Organisms’ ability to sense and react to changes or stimuli in the environment.
Characteristics of Living organisms:
Movement
The ability of an organism to move or individual cells’ movement or of material within or between cells.
Characteristics of Living organisms:
Reproduction
- Cells reproduce to replace old and dead cells.
- Organism creates offspring.
Levels of Structure Organization (there are 6 from smallest to largest)
- Chemical lvl
- Cellular lvl
- Tissue lvl
- Organ lvl
- Organ system lvl
- Organism lvl
Levels of Structure Organization:
Chemical lvl
Smallest lvl
1. Atoms
2. Molecules
3. Macromolecule
Levels of Structure Organization:
Cellular lvl
Groups of many different molecules get together and create cellular structures.
1. Organelles
2. Cells
Levels of Structure Organization:
Tissue lvl
More than 2 cells combine to perform a common function, membrane sheets that cover cavities and cartilage. Cells and surrounding extracellular matrix.
Levels of Structure Organization:
Organ lvl
2 or more tissues combine to form a structure or organ.
Levels of Structure Organization:
Organ system lvl
2 or more organs carry out a broad function in the body.
Levels of Structure Organization:
Organism lvl
Organ systems function together to make up working human body.
Anatomical position
Frame of reference from which all body parts and regions are described. Human standing, facing forward with palms out.
Anterior
Front/ Beginning
Posterior
Backside/ End
Ventral
Stomach side
Dorsal
Back side
Superior
Above
Inferior
Below
