Question

Describe, using anatomical terms/directions, the location and special features/colors of the respiratory organs: epiglottis, glottis, larynx, trachea, primary bronchus, diaphragm and lungs.

Answer 1

Epiglottis

• It is present in pharynx/larynx.
• It is covered by mucus membrane so is ligjt pink in colour.
• It prevent aspiration of food into respiratory tract by covering it during swallowing.

Glottis

• Present in larynx
• It is opening between vocal fold.
• It helps in Phonation.

Larynx

• Location - anterior aspect of neck.
• Made of 3 paired and 3 unpaired cartilage. It also have several internsic and extrinsic muscles.
• Function - prevent aspiration, Phonation.

Trachea

• Connect larynx to lung. Located in thoracic cavity.
• It divides at Carina into right and left bronchus.
• It is made of cartilage
• Act as conduit between larynx and lung thus ensures the passage of air into lung.

Primary bronchus

• Connect trachea to lung.
• There are two primary bronchus - right and left. Right bronchus is less angulated than left.
• They further divide into secondary then into tertiary bronchus.
• Act as conduct air to both lung.

Lung

• Located in thoracic cavity. 2 in number right and left.
• Left lung is smaller than right.
• Contains alveoli which are main functional organ of respiration.
• It is light pink in colour but due to population and smoking it turns black- brown.
• Function - main respiratory organ. Oxygenated and removal of carbon dioxide.

Diaphragm

• Present below lung at bottom of thoracic cavity. It seperate it from abdominal cavity.
• Made of skeletal muscle.
• It is primary muscle of respiration.

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