Keisselbach's plexus is present at -
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.
Medial wall of nasopharynx
Lateral wall of nasal cavity
Anteroinferior part of nasal septum
Posterior part of the nasal cavity
Nose