Cardiorespiratory System Flashcards
What is the cardiorespiratory system?
Cardiovascular and respiratory systems: consists of the heart and blood vessels which work with the respiratory system. Tgese vody systems carry oxygen to the muscles and organs of the body, and remove waste products such as co2
What is the cardiovascular system?
Heart, blood and blood vessels. Is an organ system that permits blood to circulate and transport nutrients such as amino acids and electrolytes, oxygen, carbon dioxide, hormones and blood cells to and from the cells in the body to provide nourishment
what is a cardiac muscle?
Shorter, more tightly connected than skeletal muscles, involuntary, fires synchronously
what is the Atria?
Smaller, Superior chamber of the heart, receive blood from veins. Each of the two upper cavities of the heart from which blood is passed to the ventricles
What is the function of the right atrium?
Gathers deoxygenated blood returning to the heart.
What is the function of the left atrium?
Gathers oxygenated blood from the lungs
explain briefly how the cardiorespiratory system works?
The right atrium receives deoxygenated blood from the body through the vena cava and pumps it into the right ventricle which sends it to the lungs to be oxygenated. The left atrium acts as a holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart and the body through the aorta
What is the Sinoatrial node?
located in the right atrium initiate impulses from the heart rate “the heart’s natural pacemaker”
In other words send out regular electrical impulses from the chamber (The Atrium) causing it to contract and pump blood into the bottom chamber (The ventricle)
what are the ventricles?
Larger, inferior chambers of the heart, pump blood out
What is the function of the right ventricle?
Pumps deoxygenated blood to the lungs
What is the function of the left ventricle?
Pumps oxygenated blood to the body
what are arteries?
Carry blood away from the heart. They are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body
what are veins?
Transferred blood back to the heart
What is arterioles?
Small branches of arteries, end in capillaries
what are capillaries?
Smallest blood vessels, site of gas, chemical, and water Exchange. they are very tiny blood vessels, so small that a single red blood cell can barely fit through them.
what are blood vessels?
Are the components of the circulatory system that transport blood through the human body. The vessels transport blood cells, nutrients, and oxygen to the tissues of the body.
What are the three kinds of blood vessels?
Arteries, veins, and capillaries.
What are venules?
Very small veins, connect capillaries to larger veins
what is stroke volume?
Amount of blood pumped with each contraction
What is the heart rate?
The rate at which the heart pumps, average on train adult 70 to 80
what is cardiac output?
Volume of blood pumped through the circulatory system per minute, heart rate X stroke volume
What is the respiratory system?
Lawrence and respiratory passageways , brings in oxygen, removes CO2
what is inspiration?
Contracting inspiratory muscles to move air into lungs
what are the inspiratory muscles
- Primary: diaphragm, external intercostals
- secondary: scalenes, pectoralis minor, sternocleidomastoid
what is expiration?
relaxing inspiratory muscles( passive), Contracting expiratory muscles (active) to move air out
What is maximal oxygen consumption ( VO2 max
Highest rate of oxygen transport and utilization achieved at maximal physical exertion
what is dysfunctional breathing?
Associated with the stress and anxiety, may result in headaches, fatigue, for circulation, and/or poor Sleep patterns
cardiorespiratory exercise:
What are the benefits of increasing it?
Cardiac output, breathing efficiency coma oxygen transport and use, use of fats for fuel , mental alertness , ability to relax and sleep, tolerance to stress, lean body mass, metabolic rate.
cardiorespiratory exercise:
what happens if you decrease it?
resting heart rate, cholesterol, blood pressure, and the risk of heart disease, blood clots, depression, anxiety, obesity, and diabetes
