Term
| What composes the cardiorespiratory system? |
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Definition
| The cardiovascular system and the respiratory system. |
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Term
| What does the cardiorespiratory system do? |
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Definition
| Provides cells with oxygen and removes carbon dioxide. |
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Term
| What is the respiratory system? |
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Definition
| The lungs and respiratory passageways. |
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Term
| What does the respiratory system do? |
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Definition
| Ensures proper cellular functioning by gathering O2 from the environment and transferring it to the body. |
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Term
| What is the cv system comprised of? |
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Definition
| Heart, blood vessels and blood. |
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Term
| What does the cv system do? |
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Definition
| Transportation, regulation and protection. Transports O2 to tissues of the body. |
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Term
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Definition
| Comprised two interdependent but separate pumps. Each pump contains two chambers, each chamber contains one ventricle which pushes blood from the heart into the body. |
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Term
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Definition
| The amount of blood the heart pumps with each contraction. |
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Term
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Definition
| The rate at which the heart pumps. |
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Term
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Definition
| The total amount of blood pumped by the heart PER MINUTE. SV X HR |
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Term
| Effect of aerobic exercise on CO. |
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Definition
| Forces heart to pump more blood by increasing SV due to increased demand of working muscles. |
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Term
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Definition
| Carry blood away from the heart. Thick elastic wall. |
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Term
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Definition
Smallest.
Distribute blood to all the cells of the body.
Exchange site at alveoli and muscles. |
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Term
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Definition
Carry blood to the heart.
Thin walls.
Have one way valves to keep blood from flowing backwards. |
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Term
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Definition
Plasma.
RBC - O2 carrier
WBC - fight infection
Platelets - clotting |
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Term
| Pulmonary circuit of heart. |
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Definition
- starts in the right ventricle
- deoxygenated blood is pumped to the lungs via the pulmonary arteries.
- O2 is picked up by the blood via capillaries and alveoli and CO2 is dropped off.
- O2 rich blood returns to the left atria via pulmonary veins. |
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Term
| Systemic circuit of heart |
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Definition
- starts in left ventricle
- oxygenated blood is pumped to the body via the aorta, arteries, arterioles, and capillaries
- blood drops off O2 and picks up CO2 via capillaries at muscle cells
- O2 poor blood is returned to the right atria via the superior and inferior vena cava (capillaries, venules, veins) |
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Term
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Definition
Systolic - pressure in the arterial system when the blood contracts
Diastolic - pressure in the arterial system when the heart relaxes and refills with blood. |
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Term
| Two places to take heart rate (pulse) |
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Definition
| Carotid artery and radial artery. |
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Term
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Definition
| Accumulation of blood in the systemic veins. Can be prevented by doing light to moderate dynamic activity. |
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Term
| Bioenergetics (energy metabolism) |
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Definition
| Study of how energy is transformed through various biochemical reactions. Through the ingestion of food chemical energy transforms into mechanical energy. |
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Term
| Three classes of nutrients. |
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Definition
Carbohydrates
Fats
Proteins |
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Term
| How is ATP used at the muscle? |
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Definition
| Adenosine triphosphate splits into adenosine diphosphate and phosphate. The free energy is transferred to the heads of the myosin filaments. |
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Term
| What are the three energy systems? |
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Definition
ATP-CP = creatine phosphate
anaerobic = glucose
Aerobic = fatty acids and glucose. |
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Term
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Definition
- use of stored up energy at muscle cell
- 10 - 20 maximal intensity
- produced without oxygen
- CP to produce ATP |
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Term
| Anaerobic glycolysis system |
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Definition
- sub maximal activity
- 20 sec to two minutes
- ATP produced from glycogen
- by product = lactic acid
- without O2 |
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Term
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Definition
-2+ minutes to aprox 90 minutes
-low to moderate intensity
-muscle cells use stored glycogen and fat in the presence of O2 to reproduce ATP
- with O2 |
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