This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose, Subject name: Anatomy
Keisselbach's plexus is present at - 
Select and explain. 
A. Medial wall of nasopharynx, B. Lateral wall of nasal cavity, C. Anteroinferior part of nasal septum, D. Posterior part of the nasal cavity
C: Anteroinferior part of nasal septum
Answer: C: Anteroinferior part of nasal septum 
Explanation: Ans 'c' i.e., Anteroinferior part of nasal septum o The anteroinferior part or the vestibule of the nasal septum contains anastomoses between the septal branches of the following 4 arteries :1. Anterior ethmoidal arterySphenopalatine arteryGreater palatine arterySuperior labial artery (Branch of facial )o These form a large capillary network called the Kiesselbach's plexus. This is a common site of anterior epistaxis and is known as the Little's area.