Search results
Results from the WOW.Com Content Network
The scapula (pl.: scapulae or scapulas [1]), also known as the shoulder blade, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone). Like their connected bones, the scapulae are paired, with each scapula on either side of the body being roughly a mirror image of the other.
The appendicular skeleton is the portion of the vertebrate endoskeleton consisting of the bones, cartilages and ligaments that support the paired appendages (fins, flippers or limbs).
The root of the spine of the scapula is the most medial part of the scapular spine. It is termed "triangular area of the spine of scapula", based on its triangular shape giving it distinguishable visible shape on x-ray images. [1] The root of the spine is on a level with the tip of the spinous process of the third thoracic vertebra. [2]
While this slightly closes the angle between the clavicle and the scapula, it also widens the shoulder. [4]: 40 The scapula can be elevated and depressed from the neutral position to a total range of 10 to 12 centimetres (3.9 to 4.7 in); at its most elevated position the scapula is always tilted so that the glenoid cavity is facing superiorly.
This muscle aids in respiration, medially rotates the scapula, protracts the scapula, and also draws the scapula inferiorly. sternocleidomastoid: Attaches to the sternum (sterno-), the clavicle (cleido-), and the mastoid process of the temporal bone of the skull. Most of its actions flex and rotate the head.
spaced out labels a bit more: 13:00, 4 January 2007: 513 × 399 (311 KB) LadyofHats {{Information |Description=the adult skull is normally made up of 22 bones. Except for the mandible, all of the bones of the skull are joined together by sutures, semi-rigid articulations formed by bony ossification, the presence of Sharpey's fibres permi
The shoulder girdle [5] or pectoral girdle, [6] composed of the clavicle and the scapula, connects the upper limb to the axial skeleton through the sternoclavicular joint (the only joint in the upper limb that directly articulates with the trunk), a ball and socket joint supported by the subclavius muscle which acts as a dynamic ligament. While ...
dorsal scapular nerve (C4 and C5) retracts scapula and rotates it to depress glenoid cavity, fixes scapula to thoracic wall: serratus anterior: 2 1 rhomboid minor: Upper limb, Vertebral column, Right?/Left? nuchal ligaments and spinous processes of C7- to T1 vertebrae: medial border of scapula, superior to insertion of rhomboid major: dorsal ...