Organ systems Flashcards
Why do we have a cardiovascular system?
6 points
- to transport nutrients to body cells
- to transport O2 to body cells
- to transport CO2 and other wastes from body cells
- to transport hormones
- to transport disease-fighting white blood cells
- to regulate body temperature
What are the 3 Human Circulation
- Cardiac circulation = The heart
- Pulmonary Circulation = circulation to lungs
- Systemic circulation = Circulation to body
What are the four chambers in the heart
- Left atrium
- Left Ventricle
- Right atrium
- Right Ventricle
The Digestive System
What are 2 types of digestion: Give examples
Mechanical and chemical digestion happens in the mouth
MECHANICAL
- chewing (grinding, tearing of food by the teeth)
- churning food (muscle contractions in the stomach)
TEETH TONGUE
CHEMICAL
- chemical action (acids and enzymes) to break food into smaller molecules
SALIVA
The Respiratory System
THE RESPIRATORY SYSTEM should include :
5 points
- a large surface area
- lungs provide this
- a thin, moist surface for gas exchange
- system for moving gases in and out of lungs
- a site for gas exchange (alveoli)
- Blood supply for transport of gasses
What is the main way to take in oxygen
the nose because nasal hair filters the air and the mucus in the nose keeps air warm and moist and filters also.
What is the respiration formula
chemical reaction that releases energy (ATP)
C6H12O6 + 6O2 → 6CO2 + 6 H2O + Energy
Glucose+oxygen → Energy + water + carbon dioxide
musculoskeletal System
What are the 3 types of muscle tissue
skeletal - found in voluntary muscles
smooth - found in involuntary muscle (intestine)
cardiac muscles-found in heart
nervous system
