Definition of Equivalent Decimals. Decimalsâ¦sometimes, they can be a little confusing. How can we tell if two decimals are equivalent, even if they appear differently on the page? How can the lowly zero aid in the detection of equivalent decimals? Well, if you stick with me, you'll have found the answers to these questions and mastered equivalent decimals by the end of this lesson!
The ossicles (also called auditory ossicles) are three bones in either middle ear that are among the smallest bones in the human body. They serve to transmit sounds from the air to the fluid-filled labyrinth (cochlea). The absence of the auditory ossicles would constitute a moderate-to-severe hearing loss. The term ossicle literally means tiny bone and, though the term may refer to any small bone throughout the body, it typically refers to the malleus, incus, and stapes (hammer, anvil, and stirrup) of the middle ear.
Tectum. The tectum is in the dorsal part of the midbrain. The superior colliculi are a part of the visual system and are involved in visual reflexes and reactions to moving stimuli. The inferior colliculi appear as four bumps on the dorsal surface of the brain stem and are a part of the auditory system.he midbrain, or mesencephalon is made up of two main structures and surrounds the cerebral aqueduct.