6.4 Organs Flashcards
1
Q
What is an organ?
A
Collection of tissues adapted to perform a particular function in an organism
2
Q
What is an organ system?
A
A group of organs working together to carry out major functions in the body
3
Q
What are 3 examples of organ systems in animals?
A
- Digestive
- Cardiovascular
- Gas exchange
4
Q
What does the digestive system do? What is its function?
A
Takes in food.
- Breaks down large insoluble molecules into smaller soluble ones
- Absorbs nutrients into the blood
- Retains water needed by the body
- Removes undigested material from the body
5
Q
What does the cardiovascular system do? What is its function?
A
Moves blood around the body - To provide an effective transport system for the substances it carries
6
Q
What does the gaseous exchange system do? What is its function?
A
Brings air into the body so oxygen can be extracted for respiration and CO2 can be expelled
