Blood vessels of nasal cavity

This tutorial covers the blood vessels of the nasal cavity, focusing on the arterial supply and venous drainage. It explains the contributions from both the external and internal carotid arteries, detailing the branches and their roles. The venous drainage is also discussed, highlighting the similarities with the arterial supply. Clinical notes on the significance of the blood supply, such as the Kieselbach plexus and its role in nosebleeds, are provided.

What is the primary focus of the tutorial on blood vessels of the nasal cavity?

• Arterial supply and venous drainage

• Nerve supply and muscle function

• Bone structure and cartilage

• Respiratory function and airflow

Which artery is a branch of the external carotid artery and supplies the nasal cavity?

• Ophthalmic artery

• Facial artery

• Vertebral artery

• Brachial artery

What is the terminal branch of the maxillary artery that supplies the nasal cavity?

• Inferior alveolar artery

• Superior labial artery

• Anterior ethmoidal artery

• Sphenopalatine artery

Which artery is the first branch of the internal carotid artery involved in nasal cavity supply?

• Ophthalmic artery

• Maxillary artery

• Lingual artery

• Facial artery

What are the two main branches of the ophthalmic artery that supply the nasal cavity?

• Facial and maxillary arteries

• Anterior and posterior ethmoidal arteries

• Sphenopalatine and greater palatine arteries

• Superior and inferior labial arteries

Which vein follows the course of the lateral nasal branch of the facial artery?

• Lateral nasal branch of the facial vein

• Greater palatine vein

• Sphenopalatine vein

• Anterior ethmoidal vein

Into which plexus does the sphenopalatine vein drain?

• Cavernous sinus

• Jugular vein

• Teragrid plexus

• Superior ophthalmic vein

What is the clinical significance of the Kieselbach plexus?

• It regulates blood pressure

• It drains the lymphatic system

• It supplies the brain with oxygen

• It is a common site for anterior nosebleeds

Which artery is NOT part of the Kieselbach plexus?

• Inferior alveolar artery

• Greater palatine artery

• Sphenopalatine artery

• Anterior ethmoidal artery

What is the medical term for nosebleeds?

• Rhinitis

• Sinusitis

• Rhinorrhea

• Epistaxis