TLS Online TPP Program

#Id: 5655

#Unit 7. System Physiology – Animal

TLS Online TPP Program

#Id: 5656

#Unit 7. System Physiology – Animal

The labyrinth has three components: 

Cochlea (containing receptors for hearing)

Semicircular canals (containing receptors that respond to head rotation)

Otolith organs (containing receptors that respond to gravity and head tilt)

TLS Online TPP Program

#Id: 5657

#Unit 7. System Physiology – Animal

The bony labyrinth is a series of channels and filled with a fluid called perilymph, which has a relatively low concentration of K+, similar to that of plasma or the cerebral spinal fluid

TLS Online TPP Program

#Id: 5658

#Unit 7. System Physiology – Animal

The membranous labyrinth more or less duplicates the shape of the bony channels and is filled with a K+-rich fluid called endolymph

TLS Online TPP Program

#Id: 5659

#Unit 7. System Physiology – Animal

Cochlea has three chambers: 

scala vestibuli

scala media

scala tympani

TLS Online TPP Program

#Id: 5660

#Unit 7. System Physiology – Animal

The upper scala vestibuli and the lower scala tympani contain perilymph and communicate with each other at the apex of the cochlea through a small opening called the helicotrema