What is the primary function of the diaphragm?
Thoracic surface of the diaphragm

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To support the spine
To separate the thoracic and abdominal cavities
To aid in digestion
To separate the heart and lungs
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which structure is continuous with the xiphoid process?
The aortic hiatus
The superior quarter of the diaphragm
The central tendon
The phrenic nerve
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the central tendon of the diaphragm play during respiration?
It increases thoracic pressure
It supports the heart
It flattens the diaphragm dome
It contracts the abdominal muscles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From which spinal nerves does the phrenic nerve arise?
T1 to T3
L1 to L3
C3 to C5
C1 to C3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which major opening in the diaphragm allows the aorta to pass through?
Esophageal hiatus
Aortic hiatus
Vena caval foramen
Lesser aperture
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What structure passes through the esophageal hiatus?
Inferior vena cava
Phrenic nerve
Aorta
Esophagus
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which nerves pass through the lesser apertures of the diaphragm?
Splanchnic nerves
Intercostal nerves
Vagus nerves
Phrenic nerves
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