Diaphragm

Musculus diaphragma

A musculotendinous dome-shaped partition separating the thoracic and abdominal cavities. It has sternal, costal, and lumbar origins converging on the central tendon. Three major openings transmit the aorta (T12), esophagus (T10), and inferior vena cava (T8).

Type Muscle
Système corporel Muscular
Région corporelle Thorax
Structure parente thoracic segment muscle
Nom latin Musculus diaphragma
FMA ID 13295

Fonction

The primary muscle of respiration. Contraction flattens the dome-shaped muscle, increasing thoracic volume and creating negative pressure to draw air into the lungs during inspiration.

Signification clinique

Diaphragmatic hernias allow abdominal organs to enter the thoracic cavity. Phrenic nerve paralysis causes diaphragmatic elevation. Hiccups result from involuntary diaphragmatic spasms.

Questions fréquentes

What is the Diaphragm?
A musculotendinous dome-shaped partition separating the thoracic and abdominal cavities. It has sternal, costal, and lumbar origins converging on the central tendon. Three major openings transmit the aorta (T12), esophagus (T10), and inferior vena cava (T8).
What is the function of the Diaphragm?
The primary muscle of respiration. Contraction flattens the dome-shaped muscle, increasing thoracic volume and creating negative pressure to draw air into the lungs during inspiration.
What body system is the Diaphragm part of?
The Diaphragm is part of the Muscular.
What conditions affect the Diaphragm?
Diaphragmatic hernias allow abdominal organs to enter the thoracic cavity. Phrenic nerve paralysis causes diaphragmatic elevation. Hiccups result from involuntary diaphragmatic spasms.
Where is the Diaphragm located?
The Diaphragm is located in the Thorax region of the body.

Structures associées

muscle head caput (musculus) muscle tissue muscular tissue musculature muscle group iliopsoas Hyrtl's muscle orbital septum septum orbitale pes anserinus of tibia pes anserine Pectoralis major Musculus pectoralis major muscle belly belly

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.