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Bones of Pectoral Girdle and Upper Extremity
Bones of Pectoral Girdle and Upper Extremity
48
Anatomy
Undergraduate 1
12/04/2011

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Term
Bones of Pectoral Girdle and Upper Extremity
Definition
Clavicle
Humerus
Scapula
Radius
Ulna
Carpals
Metacarpals
Phalanges
Term
Clavicle - name features
Definition
conoid tubercle
medial (sternal) end
lateral (acromial) end
Term
Conoid Tubercle
Definition
achors a ligament. Located on posteroinferior surface of clavicle - can be used to determine right from left.
Term
Medial (sternal) End
Definition
attaches to to sternal manubrium. Rounded or triangular in cross-section. Can be seen/felt near jugular.
Term
Lateral (acromial) end
Definition
flattened where it articulates with scapula. Conoid tubercle on its posteroinferior surface.
Term
Humerus - name features
(Figure 11.3 pg. 148)
Definition
Head, Neck (anatomical & surgical), Greater tubercle, Lesser tuburcle, intertubercular sulcus/groove, Deltoid tuberosity, Radial groove, Medial epicondyle, Lateral epicondyle, Capitulum, Trochlea, Olecranon fossa, Coronoid Fossa, Radial Fossa
Term
Head of humerus
Definition
fits into shallow glenoid cavity of scapula.
Term
Anatomical Neck of humerus
Definition
separates head from shaft
Term
Surgical Neck of humerus
Definition
more slender than anatomical neck, separates head from shaft. Common site of fracture.
Term
Greater Tubercle of humerus
Definition
larger of 2 prominences opposite the head of humerus
Term
Lesser Tubercle of humerus
Definition
smaller of 2 prominences opposite the head of humerus
Term
Intertubercular sulcus/groove of humerus
Definition
narrow groove separating greater and lesser tubercles, guides tendon of biceps muscle to point of attachment.
Term
deltoid tuberosity of humerus
Definition
attachment site of deltoid muscle; it’s a roughened area at midpoint of shaft
Term
Radial Groove of humerus
Definition
groove runnning obliquely along shaft indicating the way of the radial nerve
Term
Medial epicondyle of humerus
Definition
"funny bone" - knob on medial side and posterior to trochlea, distal end of bone. Ulnar nerve runs in groove underneath.
Term
Lateral epicondyle of humerus
Definition
knob on lateral side and posterior to capitulum, distal end of bone.
Term
Capitulum of humerus
Definition
condyle that articulates with radius of forearm
Term
Trochlea of humerus
Definition
spool looking condyle that articulates with the ulna of forearm.
Term
Olecranon fossa of humerus
Definition
posterior surface of bone above trochlea, allows process of the ulna to move freely when elbow is flexed and extended.
Term
Coronoid Fossa of humerus
Definition
anterior surface of bone above trochlea, allows process of ulna to move freely.
Term
Radial Fossa of humerus
Definition
lateral to coronoid fossa, receives the head of the radius when elbow is flexed
Term
Scapula (name features)
Definition
Acromion process, Coracoid process, Suprascapular notch, Infraspinous fossa, Supraspinous fossa, Spine, Glenoid cavity, Infraglenoid tubercle, Borders (lateral, medial, superior), Angles (superior, inferior)
Term
acromion process of scapula
Definition
enlarged roughened end of the spind of the scapula. Connects with the clavicle.
Term
coracoid process of scapula
Definition
beaklike process; points anteriorly over the tip of the shoulder joint serving as an attachment point for some of the upper limb muscles
Term
suprascapular notch of scapula
Definition
at the base of the coracoid process of scapula - allows nerves to pass
Term
infraspinous fossa of scapula
Definition
one of severak shallow depressions of scapula - under spine - posterior side of scap
Term
supraspinous fossa of scapula
Definition
shallow fossa looks kinda like inverted saddle between spine and posterior aspect of scap
Term
Spine of scapula
Definition
spine projecting off the back of scapula off of which the acromion projects.
Term
glenoid cavity of scapula
Definition
shallow socket that receives the head of the humerus
Term
infraglenoid tubercle
Definition
tubercle INF to on lateral border of scap
Term
Borders of Scapula
Definition
medial (vertebral), lateral (axillary), superior
Term
Angles of scapula
Definition
Superior, Inferior, Lateral
Term
Radius - name features
Definition
Head, neck, radial tuberosity, styloid process, ulnar notch
Term
head of radius
Definition
proximal - articulates with the capitulum of humerus
Term
neck of radius
Definition
supports head
Term
radial tuberosity
Definition
prominence on medial aspect of shaft - attachment point for tendon of the biceps brachii
Term
styloid process of radius
Definition
process at distal end of radius - can feel it at wrist
Term
ulnar notch of radius
Definition
distal- articulates with ulna
Term
Ulna
Definition
Head, olecranon process, radial notch, coronoid process, trochlear notch, styloid process
Term
head of ulna
Definition
distal - has small medial styloid process
Term
olecranon process of ulna
Definition
posterior process - elbow
Term
radial notch of ulna
Definition
located on coronoid process - articulates with head of radius
Term
coronoid process of ulna
Definition
on proximal end - anteriorly - radial notch of coronoid process articulates with head of radius
Term
trochlear notch of ulna
Definition
notch separating olecranon and cornoid processes - articulates with trochlea of humerus
Term
styloid process of ulna
Definition
on head of ulna - attachment point for ligaments of wrist
Term
Carpals - name them
Definition
(medial to lateral - first 4 in proximal row - next 4 in distal row) scaphoid, lunate, triquetral, pisiform, trapezium, trapezoid, capitate, hamate --students like taking prostitutes to the carlton hotel
Term
Metacarpals - name them
Definition
Know how to ID - numbered 1-5 from lateral to medial
Term
Phalanges
Definition
ID specific phalanges in articulated hand - numbered from 1-5 lateral to medial. Named proximal, middle (median), and distal
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