• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/17

Click to flip

17 Cards in this Set

  • Front
  • Back
Thorax
Region of body between Neck and Abdomen
Outer wall (thoracic wall/cage) Boundaries
□ Anterior - sternum, ribs
□ Lateral - Ribs
□ Posterior - 12 Thoracic vertebrae
□ Inferior - Diaphragm
Outer wall (thoracic wall/cage) Functions
□ Protective of thoracic and part of the abdominal viscera (the organs inside the abdominal cavity)
□ Respiration
□ Supportive of the upper limb
Outer wall (thoracic wall/cage)
Blood Supply
1) Posterior Intercostal aa.
2) Anterior Intercostal aa.
□ Internal Thoracic aa. (aka Subclavian aa.)
Outer wall (thoracic wall/cage) Venous Drainage
1) Anterior Intercostal vv.
2) Posterior Intercostal vv. - empties into the Azygous vv.
3) Azygos vv. - empties into the superior Vena Cava
Outer wall (thoracic wall/cage)
□ Intercostal nn. (aka Thoracic Spinal nn.) - these are the simplest spinal nn.
Pulmonary cavities strictly contain
the lungs
Mediastinum
is the midline between the two lungs.
- The central compartment of the thoracic cavity.
- Heart, trachea, esophagus, Vagus nn., Thymus, Sympathetic Trunk, Aorta, Azygos
Lung Parts
- Left - 2 lobes
-Right - 3 lobes
- lobes are separate and can be removed
Trachea
- airway from nose and mouth to thorax.
- Divides into 2 bronchi
- Bronchi divide into Lobar Bronchi
– Lobar Bronchi divide into segmental bronchi
Pleura
the Serous Membrane in the Thorax.
- reduces friction btwn organs.
Parietal Pleura is...
...is the side of the "balloon" attached to inner side of Thoracic cage
Visceral Pleura is...
...is the side attached to the lung
Collapsed lung is...
...is the result of air getting into the Pleura.
Breathing
- Create a Vacuum in the Lungs by enlarging the Thoracic Cage in a:
- Transverse direction by movement of the ribs (Ribs are elevated by mm.)
- Anterior-Posterior direction
- Superior-Inferior direction by the Respiratory Diaphragm.
Respiratory Diaphragm works by...
Diaphragm contracting builds up pressure to expel air by increasing the size of the thoracic cavity Superior to Inferior
Respiratory Diaphragm INN:
INN: Phrenic nn. from C4, C5, C6.