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pectorial girdle ct
arm and hand bones
| Question | Answer |
|---|---|
| how many cervical vertebrae are there | 7 |
| how many thoracic vertebrae are there | 12 |
| what is the most superior portion off the sternum called | manubrium |
| how many lumbar vertebrae are there | 5 |
| origin | point of a muscle that attaches to a nonmoving bone |
| insertion | point of a muscle that attaches to a moving bone |
| proximal | closer to |
| distill | farther away |
| medial | to the inside |
| lateral | to the outside |
| acromion process | provides attachment points for the deltoid and trapezious muscles |
| coracoid process | provides attachment points of the pectoralis minor and coraco brachialis and the short head of the biceps brachii |
| head of the humerus | articulates with the glenoid cavity of the scapula |
| sternal end of the clavicle | articulates with the manubrium |
| costal cartilage | allows the true ribs to attach to the sturnum and false ribs to connect to the 7th true rib |
| acromial end of the clavicle | articulates with the acromian process of the scapula |
| pronation | palm down |
| supination | palm up |
| pisiform | articulates with the styloid process of the ulna (smallest bone in the hand and is the only carple bone to be contained within a tendon) |
| triquetrum | articulates withh the head of the ulna |
| hamate | only carple to articulate with 2 metacarples |