URT & LRT

Question 1

Describe the tracheal features (superiorly-inferiorly)

+nervers, arteries, start/end, features, nearby bodies

Answer 1

• Epiglottis
• C6
• RECURRENT LARYNGEAL NERVES run up to LARYNX via tracheo-oesophageal grooves
• 16-20 cartilage rings, posteriorly completed by TRACHEALIS
• Eosophagus lies posterior to tracheal tube
• COMMON CAROTID ARTERIES (laterally in neck)
• VAGUS NERVES (bilaterally. to trachea)
• Carina cartilage found at bifurcation at level T4/5 and at STERNAL ANGLE

Question 2

PRIMARY BRONCHI

Answer 2

R 1º BRONCHI => EPARTERIAL BRONCHUS + HYPARTERIAL. BRONCHUS (BEFORE ENTERING LUNG)

L 1º BRONCHI => ENTERS AFTER THEN BRANCHES.

Question 3

MAJOR LYMPHATICS

Answer 3

• trachea,bronchi, lungs => TRACHEOBRONCHIAL L. NODES
• BRONCHOMEDIASTINAL LN @ HILUM
• SUPERFICIAL LYMPH PLEXUS @ VISCERAL PLEURA

Question 4

Where does trachea start and end (vertebral level)

Answer 4

C6-T4/5