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ALPHABETICAL INDEX
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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TERMS AND DEFINITIONS
LINKS TO THE VIRTUAL HUMAN BODY
ear
Organ of hearing and balance made up of three parts: the outer ear, middle ear and inner ear.

earlobe
Fleshy extremity of the outer ear, having no cartilage.

eighth rib
First false rib.

eighth thoracic vertebra
Vertebra located between the seventh and ninth thoracic vertebrae.

elbow
Joint connecting the arm to the forearm.

elevator muscle of angle of mouth
Muscle connecting the maxilla to the angle of the mouth, allowing it to be raised.

elevator muscle of scapula
Muscle connecting the first four cervical vertebrae to the scapula; it especially allows the scapula to be lifted and the head to be inclined.

elevator muscle of upper lip
Muscle connecting the maxilla to the skin of the upper lip, allowing it to be raised.

elevator muscle of upper lip and wing of nose
Muscle connecting the maxilla to the nasal ala and upper lip; it allows the upper lip to be raised and the nostrils to dilate.

eleventh rib
First floating rib.

eleventh thoracic vertebra
Vertebra located between the tenth and twelfth thoracic vertebrae.

endometrium
Mucous membrane lining the inside of the uterus to receive the fertilized ovule; its cyclical destruction in the absence of fertilization causes menstruation.

epicranial aponeurosis
Fibrous layer connecting the occipital muscle to the frontal muscle and covering the roof of the skull.

epididymis
Long canal folded on itself, located above and behind the testicle, in which spermatozoa produced by the seminifer tubes are stored and mature until ejaculation.

epiglottis
Mobile cartilaginous lamina located in the upper part of the larynx, directing food to the esophagus at the moment of swallowing and preventing food from entering the lower airways.

esophagial hiatus
Muscular opening of the diaphragm, allowing the passage of the esophagus and vagus nerves.

esophagus
Muscular membranous channel forming the upper part of the digestive tract, between the pharynx and the stomach.

ethmoid bone
Irregular unpaired bone located behind the nasal cavity, at the juncture of the face and skull.

extensor muscle of index
Muscle connecting the ulna to the index finger, allowing it to extend; it also assists in the extension of the hand at the wrist.

extensor muscle of little finger
Muscle connecting the lateral epicondyle of the humerus to the phalanges of the little finger, allowing it to extend.

extensor retinaculum of muscles of hand
Fibrous layer covering the tendons of the extensor muscles of the hand.

external acoustic meatus
Bony canal in the temporal bone through which sounds captured by the pinna reach the cavity of the tympanic membrane.

external carotid artery
Branch of the common carotid artery, irrigating the face, neck and scalp.

external iliac artery
Terminal branch of the common iliac artery, irrigating part of the pelvis and thigh.

external iliac lymph nodes
Nodes grouped near the external iliac vein and artery, filtering lymph especially from the abdominal wall and certain viscera of the pelvic region.

external iliac vein
Extension of the femoral vein, joining the internal iliac vein at the pelvis to form the common iliac vein.

external intercostal muscles
Muscles of the thoracic cage, connecting the ribs to each other; chiefly active during inhalation, they especially allow the ribs to be lifted.

external jugular vein
Superficial vein, draining blood from the brain, face and neck, to the suclavian vein.

external nasal veins
Veins carrying blood from the nose to the facial or angular vein.

external oblique muscle
Broad thin muscle connecting the last eight ribs to the iliac crest; it allows flexion and rotation of the trunk, compression of the internal organs and assists in exhaling.

external pudendal veins
Veins receiving certain veins of the external genitalia and emptying into the great saphenous vein.

eye
Organ of vision serving to perceive shapes, distances, colors and movements.

eyebrow
Arched group of short hairs above the eye, protecting it from light and perspiration.

eyelashes
Short curled hairs on the outer edge of the eyelids; they prevent dust and other foreign particles from depositing on the eye.