Practical Class 2: Functional Anatomy – the Upper Limb Flashcards
Define
Upper Limb
The upper limb refers to the entire arm, including the shoulder, upper arm, forearm, and hand.
Define
Shoulder Joint
The ball-and-socket joint formed by the head of the humerus and the glenoid cavity of the scapula, allowing for a wide range of motion.
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Scapula
The shoulder blade, a flat, triangular bone located on the posterior side of the thorax.
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Spine of Scapula
A bony ridge on the posterior surface of the scapula, extending from the acromion to the medial border.
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Acromion
The lateral end of the spine of the scapula that forms the highest point of the shoulder.
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Coracoid Process
A bony projection on the anterior aspect of the scapula, providing attachment for muscles and ligaments.
Define
Glenoid Cavity or Fossa
A shallow, cup-shaped depression on the lateral aspect of the scapula that articulates with the head of the humerus.
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Medial (Vertebral) Border
The edge of the scapula that faces the vertebral column.
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Clavicle
The collarbone, a slender bone that connects the sternum to the acromion of the scapula.
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Acromial (Lateral) End
The end of the clavicle that articulates with the acromion of the scapula.
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Sternal (Medial) End
The end of the clavicle that articulates with the sternum.
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Humerus
The long bone of the upper arm or forelimb, extending from the shoulder to the elbow.
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Head, Shaft (humerus)
The rounded proximal end of the humerus that fits into the glenoid cavity, and the elongated portion of the bone extending distally.
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Medial and Lateral Epicondyles of the humerus
Prominent bony projections on the distal end of the humerus, serving as attachment sites for muscles of the forearm.
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Capitulum (Lateral Condyle)
The rounded, knob-like structure on the distal end of the humerus that articulates with the head of the radius.
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Trochlea (Medial Condyle)
The spool-shaped structure on the distal end of the humerus that articulates with the trochlear notch of the ulna.
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Deltoid Tuberosity
A roughened area on the lateral side of the humeral shaft where the deltoid muscle attaches.
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Greater Tubercle
A large, bony prominence on the proximal end of the humerus, located laterally to the head.
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Intertubercular Sulcus
A groove located between the greater and lesser tubercles of the humerus, through which the tendon of the biceps brachii passes.
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Ulna
The medial bone of the forearm, located on the inner side of the forearm when in the standard anatomical position.
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Olecranon Process (Elbow)
The prominent bony projection on the proximal end of the ulna, forming the point of the elbow.
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Trochlear Notch
A deep, C-shaped notch on the proximal end of the ulna that articulates with the trochlea of the humerus.
Define
Styloid Process
A pointed, bony projection on the distal end of the ulna.
Define
Radius
The lateral bone of the forearm, located on the outer side of the forearm when in the standard anatomical position.