Closer to the front of the embryo, the vesicles differentiate into a rudimentary saccule, which will eventually become the saccule and cochlea.
32.
Closer to the front of the embryo, the vesicles differentiate into a rudimentary saccule, which will eventually become the saccule and cochlea.
33.
When the head moves vertically, the sensory cells of the saccule are disturbed and the neurons connected to them begin transmitting impulses to the brain.
34.
From the posterior wall of the saccule is given off a canal, the "'ductus endolymphaticus "'( endolymphatic duct ).
35.
The spine apparatus consists of membranous saccules and tubules along with wispy filamentous material and is usually associated with a large mushroom-shaped dendritic spine.
36.
The vestibule is a region of the inner ear which contains the saccule and the utricle, each of which contain a macula to detect linear acceleration.
37.
There are six receptor organs located in the inner ear : cochlea, utricle, saccule, and the lateral, anterior, and posterior semicircular canals.
38.
The saccule and utricle detect different motions, which information the brain receives and integrates to determine where the head is and how and where it is moving.
39.
In mammals, otoliths are small particles, composed of a combination of a gelatinous matrix and calcium carbonate in the viscous fluid of the saccule and utricle.
40.
From the lower part of the saccule a short tube, the canalis reuniens of Hensen, passes downward and opens into the ductus cochlearis near its vestibular extremity.
