Cardiorespiratory Exam Review Question Preview (ID: 54291)


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Which chamber of the heart has the thickest walls?
a) left ventricle
b) right ventricle
c) left atrium
d) right atrium

The amount of blood pumped per minute is called?
a) mean arterial pressure
b) cardiac output
c) stroke volume
d) ejection fraction

During systole
a) ventricular pressure rises
b) atrioventricular valves open
c) atria and ventricles empty
d) ventricles fill with blood

Which type of blood vessel allows exchange of nutrients, wastes, and blood gases?
a) capillaries
b) veins
c) arteries
d) venules

When exercise begins, blood flow is redirected from the __________ and __________ and sent to the muscles.
a) skin, liver
b) liver, kidneys
c) skin, kidneys
d) brain, heart

Which factor most determines blood flow resistance?
a) radius
b) length
c) tension
d) blood viscosity

Blood supply to the heart tissues is provided by what arteries?
a) coronary
b) aorta
c) inferior and superior vena cava
d) pulmonary

Together, the cardiovascular system and respiratory systems provide oxygen to the cells and remove carbon dioxide. Which of the following is NOT one of the 4 processes for doing this?
a) Pulmonary ventilation
b) Cardiac ventilation
c) Pulmonary diffusion
d) Capillary diffusion

IN ORDER, starting from the nose air travels through the:
a) Trachea, pharynx, larynx, glottis, bronchioles, then alveoli
b) Trachea, larynx, pharynx, bronchial tree, then bronchioles
c) Pharynx, larynx, trachea, bronchial tree, bronchioles, then alveoli
d) Pharynx, glottis, larynx, trachea, bronchial tree, then bronchioles

When at rest, the intercostal muscles move the ribs ________________ and the sternum ______________ during _______________.
a) ribs upward and inward and the sternum up and forward -Inspiration
b) ribs down and outward, and the sternum down and forward - Inspiration
c) ribs upward and outward, and the sternum up and forward - Expiration
d) ribs downward and inward, and the sternum down and in - Expiration

During ___________________, the diaphragm muscle contracts and flattens down towards the abdomen.
a) inspiration
b) expiration
c)
d)

Gas exchange is able to occur in the body because of the partial pressures of each gas ________________________. Thus, oxygen enters the blood while carbon dioxide leaves.
a) Transfers between areas of equal pressure
b) Is constant
c) Moves from an area of higher to lower pressure
d) Moves from an area of lower to higher pressure

Myoglobin releases oxygen when:
a) Oxyhemoglobin levels are very low
b) Oxyhemoglobin levels are very high
c) a muscle is at rest
d)

With age, HRmax _____
a) increases
b) decreases
c)
d)

Working together, the _________, _________, and _______ regulate breathing
a) Brain stem, cerebral cortex, and pons
b) Lungs, heart, and brain
c) Respiratory system, brain, and systemic circulation
d) Cardiovascular, respiratory, and endocrine systems

Which of the following does NOT play a factor in stroke volume?
a) Volume of arterial blood leaving the heart
b) Volume of venous blood to the heart
c) Ventricular capacity
d) Ventricular contractibility

A good indicator of cardiorespiratory endurance; increases with exercise intensity until ~40-60% max then plateaus
a) Stroke volume
b) Heart rate
c) Cardiac output
d) Blood flow

Increases to active muscles during exercise and decreases to the organs
a) Cardiac output
b) Blood flow
c) Stroke volume
d) Heart rate

Measure of pressure against vessel walls
a) Cardiac output
b) Stroke volume
c) Blood pressure
d) Blood flow

The sympathetic nervous system (epinephrine and norepinephrine) causes a rise in HR just before exercise
a) Anticipatory response
b) Valsalva Maneuver
c) Pulmonary diffusion
d) Capillary diffusion

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