Anatomy and Function of the Diaphragm Quiz

Challenge your understanding of the diaphragm's structure and function with these anatomy quiz questions. Test yourself now!

#1

What is the primary muscle responsible for respiration at rest?

Pectoralis major
Rectus abdominis
Serratus anterior
Diaphragm
#2

What is the main function of the diaphragm?

Digestion
Breathing
Circulation
Balance
#3

Which nerve innervates the diaphragm?

Vagus nerve
Phrenic nerve
Sciatic nerve
Optic nerve
#4

Which of the following is NOT attached to the diaphragm?

Ribs
Sternum
Vertebrae
Clavicle
#5

Which of the following structures passes through the diaphragm?

Esophagus
Trachea
Aorta
All of the above
#6

What is the term for the opening in the diaphragm through which the esophagus passes?

Foramen magnum
Hiatus
Fossa ovalis
Femoral canal
#7

In which region of the body can referred pain from the diaphragm be felt?

Shoulder
Lower back
Abdomen
Hip
#8

During inhalation, the diaphragm contracts and moves:

Upward
Downward
Sideways
In a circular motion
#9

Which muscle assists the diaphragm in the process of forced inhalation?

External intercostals
Internal oblique
Transversus abdominis
Quadratus lumborum
#10

What is the term for the dome-shaped upper surface of the diaphragm during contraction?

Apex
Crest
Central tendon
Dome arch
#11

Which part of the diaphragm is primarily responsible for separating the thoracic and abdominal cavities?

Central tendon
Costal part
Crural part
Sternal part
#12

During expiration, the diaphragm relaxes and moves:

Upward
Downward
Inward
Outward

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