Topic 27 - Diaphragm Flashcards

1
Q

The 5 layers of diaphragm

A
Pleura
Fascia endothoracica
M.phrenicus
Fascia transversa abdominis
Peritoneum
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2
Q

M.phrenicus

A

From corona muscularis. Pars costalis, pars lumbaris and pars sternalis.

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3
Q

Capula/dome - capsula diaphragmatica

A

The most cranial part of the diaphragma´s curve, which projects into thoracic cavity.

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4
Q

Arcus lumbocostalis and trigonum lubocostalis

A

An arch which connects lumbal and costal part. Beside this there is a triangular region where m.phrenicus is absent.

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5
Q

Centrum tendinosum

A

Central tendinous plate where the parts of m.phrenicus meets. Has an opening for caudal vene cava between thoracic and abdominal cavity - foramen venae cavae.

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6
Q

Pars lumbaris

A

Consist of crus dexter and crus sinister, which are arising from the 3-4 L.vertebrae and together forming an opening for aorta - hiatus aorticus. Is the crus dexter is thicker, it extends more ventrally and surrounds oespphagus - hiatus oesophageus.

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7
Q

Action of diaphragm

A

Most important inspiratory muscle. Also helps increasing abdominal pressure.

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