Pectoral Girdle and Upper limbs Flashcards

1
Q

How many bones comprise the pectoral girdle and what are they

A

4, scapula and clavicles

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2
Q

Glenoid cavity

A

lateral shallow cavity of the shoulder joint where the humerus fits

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3
Q

What does clavicle mean

A

small key

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4
Q

What is the only direct connection between the pectoral girdle and the axial skeleton

A

the clavicle

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5
Q

Epaulettes

A

descended from ancient segments of armor designed to protect the easily broken clavicle

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6
Q

sternoclavicular joint

A

The articulation of the clavicle to the sternum

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7
Q

Acromioclavicular joint (A-C joint)

A

The articulation of the clavicle with the acromion

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8
Q

What does acromion mean

A

shoulder peak

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9
Q

Conoid tubercle

A

on the inferior surface of the later end of the clavicle

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10
Q

What does conoid mean

A

small cone swelling

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11
Q

scapula

A

broad flat triangular bone positioned on the posterior aspect of the rib cage overlying ribs 2-7

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12
Q

Spine of scapula

A

prominent diagonal bony ridge on the posterior surface of the scapula

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13
Q

supraspinous fossa

A

above the spine of the scapula

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14
Q

infraspinous fossa

A

below the spine of the scapula

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15
Q

Acromion

A

forms the bony tip of the shoulder

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16
Q

Coracoid

A

inferior to the acromion, helps to stabilize the anterior portion of the shoulder joint

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17
Q

subscapular fossa

A

anterior surface of the scapula

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18
Q

Subcapularis

A

large muscle that overlies the subscapular foss

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19
Q

Greater tubercle

A

on the humerus, is positioned laterally and helps form the rounded contour of the shoulder

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20
Q

lesser tubercle

A

smaller than the greater tubercle and located more medially

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21
Q

intertubercular groove

A

in between the two tubercles of the humerus

22
Q

anatomical neck

A

between the tubercles and the head of the humerus

23
Q

surgical neck

A

narrowing of the bone immediately distal to the tubercles

24
Q

Deltoid tuberosity

A

roughened area on the shaft of the humerus along its lateral mid region where the deltoid muscle attaches

25
Capitulum
lateral rounded condyle that articulates with the radius
26
What does capitulum mean
little head
27
trochlea
the medial condyle that articulates with the ulna
28
What does trochlea mean
pulley
29
Ulnar nerve
nerve in the medial epicondyle of the humerus. often called the funny bone
30
radial fossa
accommodates the head of the radius when the elbow is flexed
31
Coronoid fossa
accommodates the coronoid process of the ulna
32
Ulna
medial bone of the antebrachium
33
Radius
lateral bone of the antebrachium
34
What does radius mean
rod or spoke of wheel
35
head of the radius
on the proximal end and articulates with the capitulum of the humerus
36
Radial notch
on the proximal end of the ulna where the radius articulates with the ulna
37
Radial tuberosity
proximal end of the radius where the biceps brachii muscle attaches
38
styloid process of radius
lateral bump on the antebrachium that is confused for a wrist bone
39
What does styloid mean
resembles a pillar or post
40
Ulnar notch
on the distal end of the radius where he ulna articulates with the radius
41
Trochlear notch
interlocks with the trochlea of the humerus to form a firm hinge joint
42
Coronoid process
forms the anterior portion of the trochlear notch and fits into the coronoid fossa of the humerus
43
Olecranon
forms the posterior portion of the trochlear notch and fits into the olecranon fossa of the humerus
44
Head of ulna
on the distal end
45
interosseous membranes
dense regular connective tissue between the ulna and radius; tibia and fibula
46
median nerve
is damaged in crucifixion causing inward contraction of the thumb
47
carpal bones
wrist bones. There are 8
48
pollex
thumb
49
A-C separation
dislocation of clavicle and acromion
50
Lateral epicondylitis
(tennis elbow) strain on the muscles or tendons that attach to the lateral epicondyle
51
Medial epicondylitis
repetitive stress is applied to the medial epicondyle
52
Colles fracture
results on silver fork deformity