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The evolution of mammalian auditory ossicles was an evolutionary process that resulted in the formation of the bones of the mammalian middle ear. These bones, or ossicles, are a defining characteristic of all mammals. The event is well-documented [1] and important [2] [3] as a demonstration of transitional forms and exaptation, the re-purposing ...
Anatomical terminology. [ edit on Wikidata] The human earlobe ( lobulus auriculae ), the lower portion of the outer ear, is composed of tough areolar and adipose connective tissues, lacking the firmness and elasticity of the rest of the auricle (the external structure of the ear). In some cases the lower lobe is connected to the side of the face.
Jaw jerk reflex. The jaw jerk reflex or the masseter reflex is a stretch reflex used to test the status of a patient's trigeminal nerve ( cranial nerve V) and to help distinguish an upper cervical cord compression from lesions that are above the foramen magnum. [1] [2] The mandible —or lower jaw—is tapped at a downward angle just below the ...
t. e. 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 sound vibrations sent from the ear drum to the fluid-filled labyrinth ( cochlea ). The absence of the auditory ossicles would constitute a moderate-to-severe hearing loss.
April 20, 2024 at 6:00 AM. It was more than two decades ago when an Arizona man called sheriff's deputies in Yavapai County, Ariz., to report a unique and disturbing discovery: While perusing his ...
53000. Anatomical terms of neuroanatomy. [ edit on Wikidata] The auriculotemporal nerve is a sensory branch of the mandibular nerve (CN V 3) that runs with the superficial temporal artery and vein, and provides sensory innervation to parts of the external ear, scalp, and temporomandibular joint. The nerve also conveys post-ganglionic ...
The inferior alveolar nerve ( IAN) (also the inferior dental nerve) is a sensory [1] [contradictory] branch of the mandibular nerve (CN V 3) (which is itself the third branch of the trigeminal nerve (CN V) ). The nerve provides sensory innervation to the lower/mandibular teeth and their corresponding gingiva as well as a small area of the face ...
Structure [ edit] In humans, the mandible is the largest and lowest bone in the facial skeleton. [2] It is the only movable bone of the skull (discounting the vibrating ossicles of the middle ear ). [3] It is connected to the skull's temporal bones by the temporomandibular joints.
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