Osteology of the Upper Limb Flashcards

1
Q

The elements of the upper limb include:

A

Clavicle (collar bone; part of the pectoral girdle) Scapula (shoulder blade; part of pectoral girdle) Humerus (arm/brachium) Radius (forearm/antebrachium) Ulna (forearm/antebrachium) Carpals (wrist/carpus) Metacarpals (hand/manus) Proximal and distal phalanges

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2
Q

What two bones make up the pectoral girdle?

A

Clavicle Scapula

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3
Q

Muscles that attach to the clavicle

A

Pectoralis Major (anterior border) Subclavius (inferior surface) Trapezius (superior surface) Deltoid (superior surface & anterior border)

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4
Q

Muscles that attach to the Coracoid Process of Scapula

A

Short head of biceps brachii Coracobrachialis Pectoralis minor

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5
Q

Muscles that attach to the Spine of Scapula

A

Deltoid Trapezius

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6
Q

Muscles that attach to the Medial (Vertebral) Border of Scapula

A

Serratus anterior Rhomboid major Rhomboid minor Levator scapulae (superior angle) Latissimus dorsi (inferior angle)

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7
Q

Muscles that attach to Lateral (Axillary) Border of Scapula

A

Teres minor Teres major

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8
Q

Glenoid Attachments

A

Supraglenoid tubercle Infraglenoid tubercle

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9
Q

Supraglenoid tubercle

A

Long head of biceps brachii

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10
Q

Infraglenoid tubercle

A

Long head of triceps brachii

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11
Q

Anterior muscles of the rotator cuff

A

Subscapularis

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12
Q

Posterior muscles of the rotator cuff

A

Supraspinatus Infraspinatus Teres minor

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13
Q

Head of humerus:

A

Articulates with glenoid of scapula

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14
Q

Less tubercle of humerus:

A

For attachment of subscapularis

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15
Q

Greater tubercle of humerus:

A

For attachment of Supraspinatus, Infraspinatus, and Teres minor

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16
Q

Bicipital groove (intertubercular sulcus) of humerus:

A

For long tendon of biceps brachii Between greater and lesser tubercles

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17
Q

Deltoid tuberosity of humerus:

A

For attachment of deltoid muscle

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18
Q

Midshaft of humerus:

A

Provides attachment for coracobrachialis and brachialis muscles

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19
Q

Medial epicondyle of humerus:

A

Provides origin for wrist & finger flexors (Common flexor origin)

20
Q

Lateral epicondyle of humerus:

A

Provides origin for wrist & finger extensors (Common extensor origin)

21
Q

Head of radius

A

Articulates with capitulum of humerus & radial notch of ulna

22
Q

Radial tuberosity of radius

A

Provides attachment site for biceps brachii tendon

23
Q

Radial shaft of radius

A

Provides attachment sites for pronators & supinators of the forearm, as well as some of the flexors & extensors of the wrist and fingers

24
Q

Distal end of radius

A

Articulates with the scaphoid & lunate carpal bones

25
Trochlear notch (semilunar notch) of the ulna
Articulates with trochlea of humerus to form the stable hinge joint of the elbow
26
Coronoid process of the ulna
Provides insertion point for brachialis & origin for pronator teres
27
Olecranon process ("elbow") of the ulna
Provides insertion for the triceps tendon
28
Ulnar shaft of the ulna
Provides origin for pronator quadratus & supinator as well as digital extensors
29
Distal ulna
Does NOT articulate with the carpal bones
30
How many bones make up the carpals?
8 bones
31
How many bones make up the metacarpals?
5 bones
32
Describe the Phalanges
14 bones 5 digits Each has 3 segments but thumb has only 2
33
Name the bones of the carpals
Scaphoid Lunate Triquetrum Pisiform Hamate Capitate Trapezoid Trapezium
34
Joints of wrist & hand
Carpometacarpal joints Metacarpophalangeal joints Interphalangeal joints
35
The flexors and extensors of the wrist have their insertions on \_\_\_\_\_.
Carpals
36
The flexors and extensors of the the digits have their insertions on \_\_\_\_\_\_\_.
Phalanges
37
The intrinsic muscles of the hand mostly originate and insert on \_\_\_\_\_\_\_, but some insert on structures associated with \_\_\_\_\_.
Metacarpals Phalanges
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