#1
What is the primary muscle responsible for respiration at rest?
Diaphragm
ExplanationMain muscle for breathing at rest.
#2
What is the main function of the diaphragm?
Breathing
ExplanationPrimary function is to aid in breathing.
#3
Which nerve innervates the diaphragm?
Phrenic nerve
ExplanationNerve responsible for diaphragmatic control.
#4
Which of the following is NOT attached to the diaphragm?
Clavicle
ExplanationClavicle is not connected to the diaphragm.
#5
Which of the following structures passes through the diaphragm?
All of the above
ExplanationVarious structures pass through, including esophagus, aorta, and vena cava.
#6
What is the term for the opening in the diaphragm through which the esophagus passes?
Hiatus
ExplanationOpening through which esophagus passes.
#7
In which region of the body can referred pain from the diaphragm be felt?
Shoulder
ExplanationPain can radiate to the shoulder region.
#8
During inhalation, the diaphragm contracts and moves:
Downward
ExplanationMoves downward to expand the chest cavity.
#9
Which muscle assists the diaphragm in the process of forced inhalation?
External intercostals
ExplanationAssists in expanding the chest cavity.
#10
What is the term for the dome-shaped upper surface of the diaphragm during contraction?
Apex
ExplanationDome-shaped top during contraction.
#11
Which part of the diaphragm is primarily responsible for separating the thoracic and abdominal cavities?
Crural part
ExplanationPart of the diaphragm separating thoracic and abdominal regions.
#12
During expiration, the diaphragm relaxes and moves:
Upward
ExplanationMoves upward to compress the chest cavity.