Life Span on Humans. Immediately after lice eggs hatch, the nymphs need food. Using their claws to crawl from the hair shafts to the scalp, young adult and mature lice feed on the hostâs blood multiple times throughout the day.
Confidence votes 7.6K. The Latin word for ear is auris (-is, f.). The diminutive, spelled either auricula or oricula, is used to refer to the external, visible part of the ear (it is the latter that gave rise to the modern Romance words for ear: Italian orecchio, Spanish oreja, French oreille, etc.).
For other uses, see Ear (disambiguation). The ear is the organ of hearing and, in mammals, balance. In mammals, the ear is usually described as having three partsâthe outer ear, middle ear and the inner ear. The outer ear consists of the pinna and the ear canal. Since the outer ear is the only visible portion of the ear in most animals, the word ear often refers to the external part alone. The middle ear includes the tympanic cavity and the three ossicles.