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10 Questions

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Understanding Respiration in Physiology

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Questions and Answers

What causes pressure variation during inhalation?

Inhalation of atmospheric air into the lungs

Relaxation of the diaphragm muscle

Contraction of the diaphragm muscle (correct)

Exhalation underwater

Which process is usually passive during breathing out?

Running

Exhalation (correct)

Powerlifting

Sneezing

Which activity does not require sustained breath control?

Swimming underwater

Singing

Climbing

Powerlifting (correct)

What is the large volume of gas known as that remains in the lungs after each exhalation?

Functional residual capacity Signup and view all the answers

What is the term used for the cellular energy-yielding process during respiration?

Cellular respiration Signup and view all the answers

What is the main focus of physiological respiration?

Removal of carbon dioxide from cells to the outside environment Signup and view all the answers

What is the key difference between physiologic respiration and cellular respiration?

Cellular respiration involves obtaining energy from oxidizing nutrients but physiologic respiration involves gas exchange Signup and view all the answers

What process takes place in the alveoli during inhalation?

Gas exchange between air and blood Signup and view all the answers

Which term refers to the circulation of blood in the pulmonary capillaries?

Perfusion Signup and view all the answers

What is the primary function of ventilation in mammals?

Bringing air into the lungs for gas exchange Signup and view all the answers