Trachea begins
Continuation of larynx @ lower border of c6
Trachea end
Sternal angle (t4, 2nd cc) by dividing into rt and lt main bronchi at angle of carina
Trachea’s length
10-12 cm
Tracheas arterial supply
Bronchial and inferior thyroid arteries
Trachea’s venous drainage
Lt brachiocephalic vein
Trachea’s lymph drainage
Pre & paratracheal lymph nodes
Tracheas nerve supply
Vagi & sympathatic ganglia
Ant. Relations of cerv. Part of trachea
- inf. Thyroid veins
- isthmus of thyroid gland (2nd,3rd & 4th tracheal rings
- sternohyoid muscle
- sternothyroid muscle
Post. Releations of cerv. Part of trachea
Esophagus and RLN
Side relations of cerv. Part of trachea
CCA
Brachiocephalic artery
Thyroid lobes
Post. Relations of thoracic part of trachea
Esophagus
ant. relations of thoracic part of trachea
- manubrium sterni
- sternohyoid muscle
- sternothyroid
- inferior thyroid vein
- LT brachiocephalic vein
- thymus gland
- arch of aorta
- left CCA
- deep cardiac plexus (on bifurcation)
right relations of thoracic part of trachea
- azygous arch
- right lung and pleura
- right vagus
- SVC
left relations of thoracic part of trachea
- arch of aorta
- left CCA
- left subclavian artery
- left RLN
RIGHT BRONCHUS
- wider
- shorter
- divides extra pulmonary
- V with line of trachea
LEFT BRONCHUS
- narrower
- longer(5cm)
- divides intra pulmonary
- horizontal (90) with trachea
