NASM Chapter 3 - The Cardiorespiratory System - 3rd Edition Flashcards

typical adult
Terms Definitions
Composed of the cardiovascular and respiratory sytems providing the tissues of the kinetic chain with oxygen, nutrients, protective agents and a means to remove wate by-products.
The Cardio Respiratory System
Composed of the heart, the blood it pumps and the blood vessels.
The Cardiovascular System
A muscle that rhythmically contracts to push blood throughout the body.
The Heart
The size and weight of a typical adult heart.
The size of a typical adult fist weighing roughly 300 g.
Mediastinum
The space in the chest between the lungs that contains all the internal organs of the chest, except the lungs.
Typical heart rate
70 - 80 beats per minute.
The Sinoatrial (SA) Node
Located in the right atrium, is termed the pacemaker for the heart because it initiates the heartbeat.
The Atrioventrical (AV) Node
Delays the impulse from the SA before moving on to the ventricals
The superior chamber of the heart that receives blood from the viens and forces it into the ventricles.
The Atrium
The inferior chamber of the heart that receives blood from its corresponding atrium and , in turn, forces blood into the arteries.
The Ventricles
The side of the heart that receives deoxygenated blood.
The right side
The side of the heart that receives oxygenated blood.
The left side
Antioventricular and Semilunar Valves
Valves preventing a backflow or spillage of blood back into the chambers
Stroke Volume (SV)
The amount of blood that is pumped out with each contraction of the ventricle.
Typical Adult Stroke Volume
75 - 80 mL per beat
The combination of beats per minute and stroke volume
Cardiac Output
The fluid that circulates in the heart, arteries, capillaries and veins which carries nutrients and oxygen to all parts of the body and also rids the body of waste products
Blood
Average amount of blood the average person holds
5 L or roughtly 1.5 gallons
Three support mechnisms of the blood
- Transportation (Nutrients, Hormones)
- Regulation (Body Temp)
- Protection ( Clotting, immune Cells)
A network of hollow tubes that circulates blood throughout the body.
Blood Vessels
Vessels that carry blood away from the heart
Arteries
Vessels that carry blood from the capillaries toward the heart
Veins
Small terminal branches of an artery, which end in capillaries
Arterioles
The smallest blood vessels, which connect venules with arterioles
Capillaries
The very small veins that connect capillaries to the larger veins
Venules
The Respiratory System
A system of organs that collects oxygen from the external environment and transports it to the blood stream.
What is the Pulmonary System?
Another name for the respiratory system.
The process of actively contracting inspiratory muscles to move air into the body.
Inspiration
Expiration
The process of actively or passively relaxing inspiratory muscles to move air out of the body.
Located in the thorax or the thoracic cavity composed of skeletal structure and soft tissue.
The Respiratory Pump
What are the structures of the respiratory passageways?
- Conduction
- Respiratory
Alveolar Sacs
The sacs in the lungs that collect oxygen and carbon dioxide through inhilation and exhilation
Requires Oxygen
Aerobic
Does not require oxygen
Anaerobic
The biology of energy transformations and exchanges within the body, and between it and the environment
Bioenergetics
A cellular structure that supplies energy for many biochemical cellular processes.
Adenosine Triphosphate (ATP)
Pathways for the Bioengergetic Continuum
- ATP-CP
- Glycolysis
- Oxidative
Which pathway(s) are Aerobic?
Oxidative
Which Pathway (s) are Anaerobic?
- ATP-CP
- Glycolysis
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