Shoulder bones Flashcards
fossa
a pit/indentation/hollow in bone
tubercle
small protruding notch or nodule in bone
process
projection/protrusion or outgrowth from the body
clavicle functions
- Lever/strut for mobility
- passage between neck and arm
- transmits forces from appendicular to axial skeleton
- commonly broken due to intake of force when falling of hands
clavicle articulates with sternum through what joint?
sternoclavicular joint
clavicle articulates with scapula through what joint?
acromioclavicular joint
which end is bulbous
sternal end
which end is flattened
acromial end
conoid tubercle
clavicle
- useful landmark for inferior side
- attachment for conoid ligament
- near acromial end
- posterior side of inferior surface
- small stuck out lump
impression for the costoclavicular ligament
- attachment of clavicle to costal cartilage of first rib
- sometimes not really visible, look for rough patch near sternal end
trapezoid line
- runs obliquely from conoid tubercle to lateral/acromial end
- attachment of trapezoid ligament
subclavian groove
- indentation between conoid tubercle and impression for costoclavicular ligament
- subclavius muscle attachment
- on inferior surface
subscapular fossa
indentation/pit in the centre of the anterior surface below scapular notch
coracoid process
curved hook like projection above lateral angle
protrudes anteriorly and slightly laterally
scapular notch
groove medial to coracoid process
location of the suprascapular nerve
small notch above subscapular fossa
glenoid cavity/fossa
shallow hollow for articulation with the humerus
located on lateral end
visible from side on in median plane
spine of scapula
posterior protrusion links to acromion
supraspinous fossa
fossa above spine
appears to protrude cranially
infraspinous fossa
fossa below spine
acromion
widened flat part lateral to spine
moves slightly cranially and laterally from spine
supraglenoid tubercle
notch located above glenoid fossa
infraglenoid tubercle
small notch located below glenoid fossa
humeral head
large semicircular section facing medially and slightly anteriorly
anatomical neck
ring around humeral head
surgical neck
transverse section at the top of shaft
greater tubercle
large notch lateral to head and anatomical neck
lesser tubercle
smaller notch anterior to head and neck
intertubercular/bicipital groove
groove/pit between the two tubercles
humeral shaft
main body of humerus