Blutgefäße der Nasenhöhle

The video tutorial provides a comprehensive overview of the anatomy of the nasal cavity, focusing on the arterial and venous systems. It explains the blood supply from the internal and external carotid arteries, detailing the roles of the facial, maxillary, and ethmoidal arteries. The venous outflow is also covered, highlighting the facial vein and pterygoid plexus. Clinical insights are provided on Locus Kiesselbach, a common site for nasal bleeding, and its management. The tutorial uses anatomical illustrations to enhance understanding.

What is the primary focus of the initial section of the nasal cavity anatomy?

• The external carotid artery

• The median section of the skull

• The maxillary artery

• The lateral wall of the nasal cavity

Which arteries are primarily responsible for the blood supply to the nasal cavity?

• Palatine and maxillary arteries

• Internal and external carotid arteries

• Facial and temporal arteries

• Ophthalmic and ethmoidal arteries

What is the role of the facial artery in the nasal cavity?

• Supplies the lateral nasal ramus

• Supplies the nasal septum

• Supplies the posterior ethmoid cells

• Supplies the hard palate

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

• Maxillary artery

• Temporal artery

• Facial artery

• Ophthalmic artery

What does the posterior ethmoidal artery primarily supply?

• Lateral nasal wall

• Anterior nasal septum

• Posterior ethmoid cells

• Nasal skin

Which vein follows the course of the facial artery?

• Pterygoid plexus

• Superior ophthalmic vein

• Lateral nasal ramus vein

• Angular vein

Where does the venous blood from the posterior ethmoid cells eventually end?

• Cavernous sinus

• Pterygoid plexus

• Superior ophthalmic vein

• Facial vein

What is the clinical significance of the locus Kiesselbach?

• It is a common site for nasal bleeding

• It is a common site for nasal tumors

• It is a major site for nasal infections

• It is a major site for nasal fractures

Which artery is NOT part of the locus Kiesselbach?

• Maxillary artery

• Superior labial artery

• Anterior ethmoidal artery

• Temporal artery

What is the recommended first step in managing anterior nasal bleeding?

• Apply a nasal tamponade

• Bend the head backward

• Sit down and bend the head forward

• Apply pressure to the nasal bridge