Cells Pt 3 Flashcards
(14 cards)
Cell
The smallest structural and functional unit of an organism.
Tissue
Speculated cells that work together to perform a function
Organ
Specialized tissues that work together to perform a function
Organ system
Specialized organs working together to perform a function
Organism
Any life form that is made of cells
Circulatory System
Circulates blood and lymph through the body
Excretory System
The body system that discharges waste
Digestive System
Converts food into energy for the entire body
Respiratory System
Responsible for taking in oxygen and expelling carbo dioxide
Muscular System
System that permits movement of the body and maintains posture
Nervous System
System that coordinates actions by transmitting signals to and from different parts of the body
Sensory System
System that processes sensory information
Skeletal System
The internal support structure of the body
Fight or Flight reaction
A physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival
