HEAD NECK
TRIANGLES OF NECK
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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inter-tubercle groove of humerus
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crest of the greater tubercle of humerus
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coracoid process of scapula
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medial edge of scapula
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cartilages of the upper eight ribs
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Detailed explanation-1: -In general, the pectoralis major muscle originates from the medial end of the clavicle, sternum, the second to sixth ribs, and the external oblique muscle fascia, passes through the ventral side of the long head of the biceps brachii (LHB), and inserts as one tendon into the crest of greater tubercle.
Detailed explanation-2: -The pectoralis major muscle forms the anterior wall of the axilla. It originates in the clavicle, sternum, and first six costal cartilages and inserts in the greater tubercle of the humerus. This muscle serves several functions, such as adduction and medial rotation of the humerus.
Detailed explanation-3: -The pectoralis major has a broad origin, based on which it is divided into three parts: clavicular part, sternocostal part and abdominal part. All three parts converge laterally and insert onto the greater tubercle of humerus.
Detailed explanation-4: -Trapezius Muscle. Teres Minor Muscle – Attachments, Actions & Innervation. Teres Major Muscle – Attachments, Action & Innervation. 13-Oct-2022