The helicotrema is a small, fluid-filled channel located:

a. At the apex of the cochlea
b. Beneath the capsule of a muscle spindle
c. In the nasal cavity
d. Near the oval window of the middle ear
e. Within the organ of Corti


ANS: A
The helicotrema is the site at which the perilymph of the scala vestibuli becomes continuous with the perilymph of the scala tympani.

Anatomy & Physiology

You might also like to view...

What is the definition of a "motor unit"?

A. All of the motor neurons supplying a single muscle B. A pair of antagonistic muscles C. A single motor neuron plus all the muscle fibers it innervates D. A single muscle fiber plus all of the motor neurons that innervate it E. All of the muscles that affect the movement of any given joint

Anatomy & Physiology

Idina admires Jude's collection of guitars. Jude says, "I plan to sell the collection when I get tired of it." Jude's statement is

a. an offer. b. not an offer because it has not been communicated to Idina. c. not an offer because Jude expressed only an intent to enter into a future contract. d. an acceptance.

Anatomy & Physiology

The celiac trunk divides into two main branches, the gastrosplenic artery and the ________ artery

A) renal B) lumbar C) cranial mesenteric D) gastrohepatic

Anatomy & Physiology

The enterogastric reflex can be triggered by

A. distention of the duodenal wall. B. the presence of food in the stomach. C. increased pH in the duodenum. D. the cerebral cortex. E. the hormone secretin.

Anatomy & Physiology