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Gross Anatomy > Thorax > Flashcards

Thorax Flashcards

0
Q

Borders of the Inferior Thoracic Apeture

A
  • T12
  • 11th and 12th pairs of ribs
  • Joined costal cartilages of ribs 7-10, forming costal margin
  • Xiphisternal joint
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1
Q

Boundaries of the Superior Thoracic Apeture

A
  • T1 vertebra
  • First pair of ribs and their costal cartilages
  • Superior border of the manubrium
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2
Q

What are the three types of ribs?

A
  • True (vertebrocostal)
  • False (vertebrochondral)
  • Floating (free)
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3
Q

Characteristics of thoracic vertebra

A
  • Bilateral costal facets (demifacets)
  • Costal facets on transverse processes (except inferior 2-3)
  • Long inferiorly slanting spinous processes
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4
Q

Thoracic Outlet Syndrome

A
  • Not to be confused with the Thoracic Apertures.

- Refers to the aperture into the lower neck and upper limb in which nerves and vasculature pass.

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5
Q

What forms the intercostal nerves?

A

-The anterior rami of T1-T11

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6
Q

What forms the subcostal nerve?

A

-Anterior rami from T12

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7
Q

What are nerves of the anterolateral abdominal wall?

A
  • Thoraco-abdominal nerve
    • anterior and lateral cutaneous branches
  • Subcostal nerve
  • Iliohypogastric and ilio-inguinal nerve
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8
Q

The Inguinal Ligament is:

A

-The most inferior part of the external oblique aponeurosis.

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9
Q

The Inguinal Canal Walls

A
  • Anterior wall: external oblique aponeurosis, reinforced by fibers of internal oblique
  • Posterior wall: transverse fascia, inguinal falx (conjoint tendon)
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10
Q

The inguinal canal roof and floor:

A

Roof: transversalis fascia, musculo-aponeurotic arches of internal oblique and transversus abdominus, medial crus of external oblique aponeurosis.
Floor: iliopubic tract, superior surface of inguinal ligament, lacunar ligament.

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11
Q

Two Lateral Compartments of the Thoracic Cavity

A

-The pulmonary cavities that contain the lungs and pleurae (lining membranes)

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12
Q

The Central Compartment of the Thoracic Cavity

A

-The mediastinum: heart, great vessels, trachea, esophagus, thymus, lymph nodes

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13
Q

The Visceral Pleura

A

-(pulmonary pleura): covers lungs and adheres to all surfaces including the fissures; cannot be separated from the lungs.

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14
Q

The Parietal Pleura

A

-lines the pulmonary cavities, adhering to the thoracic wall, mediastinum, and diaphram

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15
Q

What is the pleura cavity?

A

-the potential space between the visceral and the parietal layers of the pleura that contains a capillary layer of serous pleural fluid.

16
Q

What are the four parts of the parietal pleura?

A
  • Costal
  • Mediastinal
  • Diaphragmatic
  • Cervical
17
Q

Costodiaphragmatic recesses

A

-surround the upward convexity of the diaphragm inside the thoracic wall

18
Q

Three surfaces of the lungs:

A
  • Costal
  • Mediastinal
  • Diaphragmatic
19
Q

Three borders of the lungs:

A
  • Anterior
  • Posterior
  • Inferior

Gross Anatomy (65 decks)

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