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humerus
(redirected from arm bone)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
humerus: see arm arm, upper limb in humans. Three long bones form the framework of the arm: the humerus of the upper arm, and the radius (outer bone) and ulna (inner bone) of the forearm.
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humerus
1. the bone that extends from the shoulder to the elbow
2. the corresponding bone in other vertebrates

humerus [′hyüm·ə·rəs]
(anatomy)
The proximal bone of the forelimb in vertebrates; the bone of the upper arm in humans, articulating with the glenoid fossa and the radius and ulna.


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A half moon shape is attached to a stem, which is inserted straight down the middle of the arm bone.
A half-moon shape is attached to a stem, which is inserted straight down the middle of the arm bone.
The upper arm bone provides a lot of information about the lifestyle of the animal, because its shape gives clues to the pattern of movement and can tell us for example whether the animal lifted the front part of its body clear of the ground," said Professor Per Ahlberg at the Department of Physiology and Developmental Biology.
 
 
 
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