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Heart and tissues
Question | Answer |
---|---|
4 categories of human tissues | Muscle, nervous, epithelial and connective |
Muscle tissue? | Supports the body and allows it to move |
Nervous tissue? | Coordinates info from sensory organs |
Epithelial tissue? | Helps to protect the body from invasion by microbes, fluid loss & injury |
Connective tissue? | Supports & connects the tissue & organs of the body |
How many layers does the heart have | 3 |
Epicardium? | Outer layer of heart that that has 2 layers of pericardium |
Myocardium? | Middle layer of heart. Contains the cardiac muscular tissue; performs function of pumping what's necessary for blood circulation |
Endocardium? | Smooth inner layer that keeps blood from sticking to the inside of the heart |
The heart works by shifting between how many phases | 2 |
Systole? | The cardiac muscles are contracting and moving blood from any given chamber |
Diastole? | The heart muscles are relaxing and the chamber is expanding to fill with blood |
The biggest artery in the body | Aorta |
The biggest vein in the body | Superior vena cava (svc) |
Anabolism? | To build |
Catabolism? | To break down |
Largest solid organ in the body | The liver |