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The outer ear, external ear, or auris externa is the external part of the ear, ... Additional images. External and middle ear, opened from the front. Right side.
The outer ear is the external portion of the ear and includes the fleshy visible auricle, the ear canal, and the outer layer of the eardrum (also called the tympanic membrane). [2] [3] The auricle consists of the curving outer rim called the helix, the inner curved rim called the antihelix, and opens into the ear canal.
The ear canal (external acoustic meatus, external auditory meatus, EAM) is a pathway running from the outer ear to the middle ear.The adult human ear canal extends from the auricle to the eardrum and is about 2.5 centimetres (1 in) in length and 0.7 centimetres (0.3 in) in diameter.
External auditory meatus is the ear canal; Fossa triangularis is the depression in the fork of the antihelix; Helix is the folded over outside edge of the ear; Incisura anterior auris, or intertragic incisure, or intertragal notch, is the space between the tragus and antitragus; Lobe (lobule) Scapha, the depression or groove between the helix ...
Green is outer ear. Red is middle ear. Purple is inner ear. Date: 15 February 2009: Source:
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.
The tragus is a key feature in many bat species. As a piece of skin in front of the ear canal, it plays an important role in directing sounds into the ear for prey location and navigation via echolocation. [6] Because the tragus tends to be prominent in bats, it is an important feature in identifying bat species. [7]
1 Additional images. 2 References. Toggle the table of contents. Helix (ear) 9 languages. ... External ear. Right auricle. Lateral view. External ear. Right auricle ...