The cochlea is a spiral shell shaped cavity in the inner ear filled with a liquid called endolymph which aids in hearing. The malleus, incus and stapes are some of the smallest bones in the body. When sound causes them to vibrate, the human ear picks up the sound. The tympanic membrane or eardrum is a cone-shaped part of the ear that adjusts pressure which makes sounds easier and smoother to hear. The eustachian tube, or auditory tube, connects the middle ear with the throat. It is the eustachian tube that experiences the pressure caused by high or low altitudes such as when flying in an airplane or deep-sea diving.
The triangular fossa and scapha are just two parts of the outer ear that form the shape of the ear. The concha is part of the outer ear that is the passage that leads to the inner ear. The vestibular nerve is located near the cochlea and is the nerve that passes sensory information (hearing) to the brain and throughout the body.
The incorrect options are the lacrimal gland, which is another name for the tear duct located near the eye. The iris is also part of the eye and controls the amount of light that enters the eye. Papillae are another name for the tongue's taste buds. The hard palate is the bony plate that is sometimes called the roof of the mouth.
The tricuspid valve is a part of the heart that regulates blood flow. Alveoli are tiny air sacs that move oxygen through the lungs. The flexor digiti is a muscle found in the fingers and toes. The pyloric canal is part of the stomach that connects to the duodenum.
This quiz was reviewed by FunTrivia editor rossian before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.
