Question

Tectorial membrane is present is :

• A. Upper chamber of cochlea
• B. Middle chamber of membranous labyrinth
• C. Lower chamber of Cochlea
• D. Between external ear and middle ear

Answer 1

The correct option is B Middle chamber of membranous labyrinth

Tectorial membrane is found in the inner ear of mammals. The cochlea of inner ear has two membranes, one is the basilar membrane and the other is tectorial membrane. Tectorial membrane is present between scala vestibuli and scala tympani. It is an extracellular connective tissue and covers the sensory receptor cells of inner ear.

The tectorial membrane (TM) of the inner ear is a ribbon-like strip of extracellular matrix that spirals along the entire length of the cochlea.

Tectorial membrane is present in the middle chamber of membranous labyrinth.