Respiratory Physiology

Which muscles are primarily responsible for inspiration (inhalation)?

What is the function of negative intrathoracic pressure in respiration?

What is the volume of air inspired and expired during one breath called?

Where does the exchange of oxygen and carbon dioxide take place in the lungs?

What are the two main systems that control breathing?

What happens when there is an increase in carbon dioxide levels?

What is the primary function of the respiratory system?

What are the secondary functions of the respiratory system?

How does oxygen diffuse from the alveoli into the blood?

What are the fibrous connective tissue bands that vibrate as air passes over them, producing sound?

Which muscles are responsible for expiration (exhalation)?

What is the term used to describe the volume of air left in the lungs after maximum expiration?

Where does the exchange of oxygen and carbon dioxide take place in the lungs?

What is the function of the pulmonary circulation?

What is the primary function of the respiratory system?

What controls the rate and depth of respiration?

What is the term used to describe the volume of air inspired and expired during one minute?

A slight lowering of the oxygen levels in the blood can result in a condition called;

A slight lowering of the oxygen levels in the blood can result in a condition called hypoxia & the RC will

If oxygen levels drop too low the RC neurons become

Pressure within the thorax is positive with respect to the atmospheric pressure

Pressure within the thorax is negative with respect to the atmospheric pressure

Pleural fluid acts as a

The lungs passively follow movements of the

Two fibrous connective tissue bands (vocal folds) stretch across the _________ __ ___ ________and vibrate as air passes over them producing sound

Breathing is controlled by the __________ __________ area in the medulla oblongata of the __________ (add a comma after the first two words)

Respiration requires _________ movement of _____ into and out of the _______ (add comma after each answer)

Respiration requires appropriate _______ and __________ to meet the body's need for ___________ at any given time (add comma after each answer)

Mechanical system involves

Chemical system involves

What warms inhaled air

How does panting cool blood

Where are the receptors for smell

How does the respiratory system maintain Acid-base balance

The pulmonary artery to the lungs _______________________

After the pulmonary artery to the lungs divides into left and right arteries the blood vessels

At the capillary level there is a network of capillaries around the alveoli where

At the capillary level there is a ________ ___ ________ around the alveoli where exchange of oxygen and carbon dioxide take place

Muscles used for respiration are

Breathing requires conscious effort

Oxygen rich blood enters the pulmonary venules which

Pulmonary veins carry oxygen-rich blood to the left atrium and then

Pulmonary veins carry oxygen-enriched blood to the Left Atrium through the left AV valve to the Left ventricle and out through the aorta and to the systemic circulation to supply the body w/ oxygen for internal respiration

Pulmonary veins carry oxygen-enriched blood to the Left Atrium through the left AV valve to the Left ventricle and out through the aorta and to the systemic circulation to supply the body w/ oxygen for external respiration

If there is an imbalance

Air in the alveoli of the lungs is ________________________________ blood in the capillaries around the alveolar sacs

Why does oxygen diffuse across the alveolar and capillary walls into the blood where oxygen concentration is low

Because oxygen levels in the alveoli level are high

Respiration requires appropriate _______ and __________ to meet the body's need for ___________ at any given time (add comma after each answer)

Respiration requires _________ movement of _____ into and out of the _______ (add comma after each answer)

Two fibrous connective tissue bands (vocal folds) stretch across the _______________ and vibrate as air passes over them producing sound