WebbInfraspinous fossa Fossa infraspinata. Definition. The infraspinatous fossa is much larger than the preceding; toward its vertebral margin a shallow concavity is seen at its upper part; its center presents a … In human anatomy, the infraspinatus muscle is a thick triangular muscle, which occupies the chief part of the infraspinatous fossa. As one of the four muscles of the rotator cuff, the main function of the infraspinatus is to externally rotate the humerus and stabilize the shoulder joint. Visa mer It attaches medially to the infraspinous fossa of the scapula and laterally to the middle facet of the greater tubercle of the humerus. The muscle arises by fleshy fibers from the medial two … Visa mer • Anatomy figure: 03:03-04 at Human Anatomy Online, SUNY Downstate Medical Center • ExRx Visa mer The infraspinatus is the main external rotator of the shoulder. When the arm is fixed, it adducts the inferior angle of the scapula. Its synergists are teres minor and the deltoid. The … Visa mer From an evolutionary prospective, the pectoral muscles – the pectoralis major and pectoralis minor – are thought to have evolved from a … Visa mer
Upper extremity-I - TOPOGRAPHIC ANATOMY OF THE UPPER …
Webb大圆肌（英語： Teres major ）是上肢一束附着在肩胛骨和肱骨上的肌肉，是七个肩胛肱骨肌肉之一，是厚实但有些扁平的肌肉，位于背闊肌上方，有助于肱骨的伸展和内侧旋转。 该肌肉有时候会被混淆为旋转肌群肌肉，但实际上它并不像 小圆肌 （ 英语 ： Teres minor muscle ） 那样附着在肩关节囊上 ... WebbThe infraspinatus muscle occupies the infraspinous fossa, and crosses the lateral part of shoulder joint ot the roughened area of the greater tubercle of humerus. It acts as a … county seat of miller county mo
Interspinous ligament - Physiopedia
WebbThe mucous sheaths of the tendons on the back of the wrist. (Anatomical snuffbox not labeled, but visible at right.) The anatomical snuff box or snuffbox or foveola radialis is a triangular deepening on the radial, dorsal aspect of the hand —at the level of the carpal bones, specifically, the scaphoid and trapezium bones forming the floor. WebbOrigin: infraspinous fossa on the posterior surface of the scapula. This muscle completely fills the infraspinous fossa of the scapula and its fibers pass laterally. Insertion: greater tubercle of the humerus. Action: it is also one of the rotator cuff muscles that stabilizes the shoulder and provides external rotation of the upper arm. Webbadjective. in· fra· spi· nous ˌin-frə-ˈspī-nəs. : lying below a spine. especially : lying below the spine of the scapula. briafael frydig ap llywarch