Upper limb and Breast Flashcards
Pectoral girdle consist of ?
2 bones
- Clavicle
- Scapula
Pectoral girdle are joined to ?
- Axial skeleton by sternoclavicular joint
- Each other by acromioclavicular joint
What are the bones of upper limb?
- Scapula
- Clavicle
- Humerus
- Radius
- Ulnar
- Carpal
- Metacarpal
- Phalanges
Scapula extends from which ribs ?
2nd until 7th ribs
Describe the convexity of the clavicle
- Medial 2/3 convex anteriorly and circular in cross dissection
- Lateral 1/3 convex posteriorly and flattened in cross dissection
What is the medial articulation of the clavicle?
- Medially at the sternoclavicular joint
- Attached to 1st costal cartilage by the costoclavicular ligaments
What is lateral articulation of the clavicle?
- Laterally with acromion at the acromioclavicular joint (incomplete articular disc in joint)
- Attached to coracoid process by tough coracoclavicular ligaments
Which bone of upper limb that has no medullary cavity, first to ossify in fetus and the only long bone develop in membrane ?
Clavicle
Clavicle is the most common fractured bone in body. Usually happen at ?
Junction of middle and outer third
Where is the direction of head of humerus ?
Is a third of sphere and faces medially, upwards and backwards
Head of humerus are separated from greater and lesser tubercle by __________.
Anatomical neck of humerus
Greater and lesser tubercle are separated by ? The groove contain ______.
Bicipital groove
Contains tendon of long head of biceps
Where does the head and shaft of humerus met ? What structure lies within ?
Surgical neck of humerus
Lies the axillary artery and circumflex humeral vessels
Shaft is _______ in section above and _______ lower down.
Circular
Flattened
