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603 Anatomy > Thoracic Cavity > Flashcards

Thoracic Cavity Flashcards

1
Q

“Point” of the Diaphragm

A

cupula, at approximately ICS 6

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2
Q

Lumbar attachments of the diaphragm

A

crura (left and right)

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3
Q

Aortic hiatus

A

opening in the diaphragm that allows the descending aorta, azygous vein, and the thoracic duct to pass through

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4
Q

What organ sits right behind the diaphragm?

A

liver

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5
Q

Caval foramen

A

hole in the musculotendinous plate of the diaphragm for the caudal vena cava to pass through

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6
Q

Esophageal hiatus

A

hole in the musculotendinous plate of the diaphragm for the esophagus and vagal trunks to pass through

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7
Q

Diaphragm blood supply

A

musculophrenic artery

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8
Q

Diaphram Innervation

A

phrenic nerve

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9
Q

spinal roots of the phrenic nerve

A

C5, C6, C7

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10
Q

Viscera

A

organs

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11
Q

3 Parietal Pleuras

A
  1. Costal
  2. Mediastinal
  3. Diaphragmatic
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12
Q

Visceral Pleura in the thoracic cavity?

A

Pulmonary pleura

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13
Q

Cupula pleurae

A

where the costal and mediastinal pleura join cranially, and may extend in front of the first rib

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14
Q

Plica venae cavae

A

fold in the pleura that contains the caudal vena cava, between diaphragm and pericardium

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15
Q

3 Major Spaces of the Thoracic Cavity

A

Mediastinum
2 Pleural Cavities

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16
Q

2 Major Spaces of the Abdominal Cavity

A
  1. Peritoneal
  2. Retroperitoneal
17
Q

Mediastinum

A

center cavity (that is often slightly to left of midline) that separtes the two pleural spaces in the thorax

18
Q

3 Sections of Mediastinum

A
  1. Cranial
  2. Middle
  3. Caudal
19
Q

What is the only thing in the middle mediastinum?

20
Q

Two Portions of Mediastinum

A
  1. Dorsal (above trachea)
  2. Ventral (below trachea)
21
Q

2 Ligaments that secure the heart

A
  1. Sternopericardial
  2. Phrenicopericardial
22
Q

What part of the mediastinum are the two ligaments that secure the heart located?

A

ventral portion

23
Q

What species has a thick mediastinum?

24
Q

Clinical significance of a thick mediastinum?

A

Thicker = does not rupture as easily, can sometimes have only one collapsed lung instead of both

25
Q

Which species has the thinnest mediastinum?

26
Q

Pleuritis

A

inflammation of the pleura (single layer of mesothelial cells) in the thorax

27
Q

Peritonitis

A

inflammation of mesothelial cells in the abdomen

28
Q

pericarditis

A

infammation of the single layer of mesothelial cells around the heart

603 Anatomy (13 decks)

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