Ch 3 - The Cardiorespiratory System Flashcards
Which term describes the number of heart beats per minute and the amount of blood pumped per minute/beat?
Cardiac Output
Which of the following is true of a skeletal muscle?
It is a voluntary muscle
Which of the following refers to vessels that transport blood from the capillaries toward the heart?
Veins
Heavy breathing results in an increase in the activity level of which of the following secondary respiratory muscles?
Scaleness
Normal breathing uses which primary respiratory muscle?
Diaphram
Which term refers to the amount of blood pumped out of the heart with each contraction?
Stroke Volume
When should the three measurements for resting heart rate be taken for greatest accuracy?
At the same time each day upon waking
Arterioles branch out into vessels known as what?
Capillaries
Within what range is the typical resting heart rate of a human being?
70-80 bpm
What system of organs that collects oxygen from the external environment and transports it to the bloodstream?
Respiratory System
What is a small terminal branch of an artery that ends in capillaries?
Arteriole
After leaving the left ventricle, blood enters which structure?
Aorta
What may be the best measure of cardiorespiratory fitness?
Maximal oxygen consumption
Which structure is water and chemicals exchanged between the blood and tissues?
capillaries
What is a life-sustaining fluid that supplies the body’s organs and cells with oxygen and nutrients and helps regulate body temperature, fight infections and remove waste products?
Blood
