Name:________________________________________________
Date:_________________________
Describe the parts of the heart.
Pacemaker:_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Right Atrium:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Right Ventricle:__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Aorta:_______________________________________________________________________________________________________________________________________________________________________
Left Atrium:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Left Ventricle:__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Septum:___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
The Circulatory System
- Consists of __________________, ______________________ and ______________________.
- Carries substances to cells and ___________________________ away from cells.
- The Heart
- Hollow muscular organ that pumps ________________ throughout the body.
- About the size of your _____________________.
- Each time the heart beats, it pushes blood through the _______________________.
- 4 Chambers of the Heart
- Heart has 2 sides (right and left) that are separated by a wall of _______________________
- Each side has 2 chambers (upper and lower)
- Each upper chamber is called an __________________ (receives blood that comes to the heart)
- Each lower chamber is called a ____________________ (pumps blood out of the heart)
- Arteries, Capillaries and Veins
- Arteries
- Blood vessels that carry blood ________________from the heart.
- Capillaries
- Blood flows from arteries to _________________
- Tiny vessels that exchange substances between blood and body cells.
- Veins
- Blood flows from capillaries to ________________
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