Nasal Septum Anatomy and Innervation

The video tutorial provides a comprehensive overview of the nasal septum, covering its structure, including the bony and cartilaginous parts, borders, and surfaces. It details the blood supply, highlighting the different arteries involved, and explains the innervation, focusing on both general and special sensory nerves. The tutorial aims to enhance understanding of the nasal septum's anatomy and its functional aspects.

What is the nasal septum primarily composed of?

• Muscle tissue

• Osteocartilaginous partition

• Only cartilage

• Only bone

Which bone is NOT involved in the formation of the bony part of the nasal septum?

• Vomer bone

• Perpendicular plate of the ethmoid bone

• Nasal spine of the frontal bone

• Zygomatic bone

What forms the cartilaginous part of the nasal septum?

• Nasal bone

• Only inferior nasal cartilages

• Only septal cartilage

• Septal cartilage and inferior nasal cartilages

How many main borders does the nasal septum have?

• Four

• Five

• Three

• Two

Which artery supplies the posterior part of the nasal septum?

• Posterior ethmoidal artery

• Sphenopalatine artery

• Superior labial artery

• Anterior ethmoidal artery

What is the dangerous area in the nasal septum where many arteries anastomose?

• Kisselbach's plexus

• Maxillary sinus

• Sphenopalatine foramen

• Olfactory bulb

Which nerve provides special sensory innervation to the nasal septum?

• Superior alveolar nerve

• Trigeminal nerve

• Olfactory nerve

• Anterior ethmoidal nerve

Which part of the nasal septum is innervated by the anterior ethmoidal nerve?

• Posterior superior part

• Anterior inferior part

• Anterior superior part

• Posterior inferior part

What type of innervation does the olfactory nerve provide?

• General sensory

• Motor

• Special sensory

• Autonomic

Which ganglion is involved in the innervation of the posterior superior part of the nasal septum?

• Ciliary ganglion

• Pterygopalatine ganglion

• Otic ganglion

• Submandibular ganglion