Question

The membranous Labyrinth or internal ear contains a fluid called
(a) Perilymph
(b)Hemolymph
(c) Lymph
(d) Endolymph

Answer 1

Hint: This is the fluid contained in the membranous labyrinth of the inner ear. It is also called Scarpa's fluid, after Antonio Scarpa. Chemically it is similar to an intracellular fluid which is high in potassium and low in Na.

Complete answer:
The membranous Labyrinth or internal ear contains a fluid called endolymph. This fluid is contained in the membranous labyrinth of the inner ear. The major cation in endolymph is of potassium, with the values of sodium and potassium concentration being 0.91 mM and 154 mM, respectively.

Additional Information: -The inner ear consists of two parts: the bony labyrinth and the membranous labyrinth. within the membranous labyrinth, the fluid endolymph is present
-The endolymph has unique ionic compositions that suit their functions of regulating electrochemical impulses of hair cells.
-The electric potential of endolymph is ~80-90 mV more positive than the electric potential of perilymph because of the higher concentration of potassium compared to sodium-
-Perilymph is an extracellular fluid in the inner ear which surrounds the membranous labyrinth.
-Haemolymph is a fluid found in the body of arthropods. This fluid is equivalent to blood.
-The fluid that circulates within the system lymphatica is understood as lymph. As the blood passes through the capillaries in tissues, a touch amount of water alongside tiny water-soluble substances moves out of the cells leaving the larger proteins and most of the formed element.
So, the correct answer is 'Endolymph'.

Note: -There are three semicircular canals or ducts that are located in the innermost part of the inner ear of each ear: the superior canal, the posterior canal, and the lateral canal.
-All three types of the canal is filled with a fluid named endolymph.
-All these contain motor sensors within the fluids.