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Anatomy Lab > Unit 2 > Flashcards

Unit 2 Flashcards

1
Q

Coracoclavicular

A

Proximal Attachment Site: coracoid process of scapula
Distal Attachment Site: conoid tubercle of clavicle
Function: prevent separation between clavicle and coracoid process

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2
Q

Coracoacromial

A

Proximal Attachment Site: coracoid process of scapula
Distal Attachment Site: acromion of scapula
Function: prevent upward displacement of humerus

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3
Q

Glenohumeral

A

Proximal Attachment Site: margin of glenoid cavity
Distal Attachment Site: neck of humerus
Function: prevent excessive motion of humerus

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4
Q

Acromioclavicular

A

Proximal Attachment Site: acromion of scapula
Distal Attachment Site: clavicle
Function: prevent separation between clavicle and acromion process

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5
Q

Annular

A

Proximal Attachment Site: anterior margin of radial notch
Distal Attachment Site: posterior margin of radial notch
Function: stabilize the head of the radius against the ulna

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6
Q

Radial Collateral

A

Proximal Attachment Site: lateral epicondyle of humerus
Distal Attachment Site: annular ligament
Function: prevent adduction of elbow

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7
Q

Ulnar Collateral

A

Proximal Attachment Site: medial epicondyle of humerus
Distal Attachment Site: coronoid process and olecranon of ulna
Function: prevent abduction of the elbow

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8
Q

Deltoid

A

Origin: spine and acromion of scapula; lateral 1/3 of clavicle
Insertion: deltoid tuberosity of humerus
Function: flexes, abducts, extends, rotates the arm
Innervation: axillary nerve

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9
Q

Supraspinatus

A

Origin: suprasionous fossa of scapula
Insertion: greater tubercle of humerus
Function: abducts the arm
Innervation: suprascapular nerve

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10
Q

Infraspinatus

A

Origin: infraspinous fossa of scapula
Insertion: greater tubercle of humerus
Function: laterally rotates the humerus
Innervation: suprascapular nerve

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11
Q

Teres minor

A

Origin: lateral border of dorsal scapula
Insertion: greater tubercle of humerus
Function: laterally rotates the humerus when arm is adducted
Innervation: axillary nerve

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12
Q

Subscapularis

A

Origin: subscapular fossa of scapula
Insertion: lesser tubercle of humerus
Function: medially rotates the humerus
Innervation: upper and lower subscapular nerves

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13
Q

Teres Major

A

Origin: lateral border of scapula
Insertion: intertubercular sulcus of humerus
Function: extends, adducts, medially rotates the humerus
Innervation: lower subscapular nerve

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14
Q

Latissimus dorsi

A

Origin: iliac crest; thoracic and lumbar vertebrae
Insertion: intertubercular sulcus of humerus
Function: extends, adducts, medially rotates the arm
Innervation: thoracodorsal nerve

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15
Q

Triceps brachii – long head

A

Origin: infraglenoid tubercle of the scapula
Insertion: olecranon of the ulna
Function: extends the arm at the shoulder and extends the forearm at the elbow
Innervation: radial nerve

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16
Q

Triceps brachii – lateral head

A

Origin: lateral shaft of humerus
Insertion: olecranon of the ulna
Function: extends the forearm at the elbow
Innervation: radial nerve

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17
Q

Triceps brachii – medial head

A

Origin: posterior shaft of the humerus
Insertion: olecranon of the ulna
Function: extends the forearm at the elbow
Innervation: radial nerve

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18
Q

Anconeus

A

Origin: posterior surface of the lateral epicondyle of the humerus
Insertion: olecranon of the ulna
Function: extends the forearm at the elbow
Innervation: radial nerve

19
Q

Pectoralis major

A

Origin: clavicle; sternum; and 7th rib
Insertion: greater tubercle of humerus
Function: flexes, medially rotates, and adducts the arm
Innervation: lateral and medial pectoral nerves

20
Q

Pectoralis minor

A

Origin: anterior of ribs 3-5
Insertion: coracoid process of the scapula
Function: protracts the scapula
Innervation: medial pectoral nerve

21
Q

Serratus anterior

A

Origin: upper eight ribs
Insertion: medial border of the scapula
Function: protracts and rotates the scapula
Innervation: long thoracic nerve

22
Q

Coracobrachialis

A

Origin: coracoid process of the scapula
Insertion: medial, midshaft of humerus
Function: flexes the arm at the shoulder
Innervation: musculocutaneous nerve

23
Q

Biceps brachii – long head

A

Origin: supraglenoid tubercle of the scapula
Insertion: radial (bicipital) tuberosity of radius
Function: flexes the arm at the shoulder; flexes the forearm at the elbow; supinates the forearm
Innervation: musculocutaneous nerve

24
Q

Biceps brachii – short head

A

Origin: coracoid process of the scapula
Insertion: radial (bicipital) tuberosity of radius
Function: flexes the arm at the shoulder; flexes the forearm at the elbow; supinates the forearm
Innervation: musculocutaneous nerve

25
Q

Brachialis

A

Origin: anterior humeral shaft
Insertion: coronoid process of the ulna
Function: flexes the forearm at the elbow
Innervation: musculocutaneous nerve

26
Q

Flexor carpi radialis

A

Origin: medial epicondyle of humerus
Insertion: base of 2nd and 3rd metacarpals
Function: flexes the forearm at the elbow; flexes and adducts the wrist
Innervation: median nerve

27
Q

Flexor carpi ulnaris

A

Origin: medial epicondyle of humerus
Insertion: pisiform, hamate, base of 5th metacarpal
Function: flexes the forearm at the elbow; flexes and adducts the wrist
Innervation: ulnar nerve

28
Q

Palmaris longus

A

Origin: medial epicondyle of humerus
Insertion: palmar aponeurosis
Function: flexes the elbow; flexes the wrist
Innervation: median nerve

29
Q

Flexor digitorum superficials

A

Origin: medial epicondyle of humerus; anterior radius and ulna
Insertion: middle phalanges 2-5
Function: flexes wrist and digits
Innervation: median nerve

30
Q

Pronator teres

A

Origin: medial epicondyle of humerus
Insertion: lateral midshaft of radius
Function: flexes the forearm at the elbow; pronates the forearm
Innervation: median nerve

31
Q

Pronator quadratus

A

Origin: distal ulna
Insertion: shaft of radius
Function: pronates the forearm
Innervation: median nerve

32
Q

Brachioradialis

A

Origin: lateral supracondylar ridge of humerus
Insertion: styloid process of radius
Function: flexes the forearm at the elbow
Innervation: radial nerve

33
Q

Extensor carpi radialis longus

A

Origin: supracondylar ridge of humerus
Insertion: base of 2nd metacarpal
Function: extends the elbow; extends and abducts the wrist
Innervation: radial nerve

34
Q

Extensor carpi radialis brevis

A

Origin: lateral epicondyle of humerus
Insertion: base of 3rd metacarpal
Function: extends the elbow; extends and abducts the wrist
Innervation: radial nerve

35
Q

Extensor carpi ulnaris

A

Origin: lateral epicondyle of humerus
Insertion: base of 5th metacarpal
Function: extends the elbow; extends and adducts the wrist
Innervation: radial nerve

36
Q

Extensor digitorum

A

Origin: lateral epicondyle of humerus
Insertion: distal phalanges of digits 2-5
Function: extends the elbow, wrist, and digits
Innervation: radial nerve

37
Q

Extensor digiti minimi

A

Origin: lateral epicondyle of humerus
Insertion: proximal phalanx of 5th digit
Function: extends 5th digit
Innervation: radial nerve

38
Q

Extensor indicis

A

Origin: distal ulnar shaft
Insertion: proximal phalanx of 2nd digit
Function: extends 2nd digit
Innervation: radial nerve

39
Q

Supinator

A

Origin: lateral epicondyle of humerus
Insertion: radius distal to radial tuberosity
Function: supinates the elbow
Innervation: radial nerve

40
Q

Abductor pollicis longus

A

Origin: proximal ulna and radius
Insertion: 1st metacarpal
Function: abducts the thumb
Innervation: radial nerve

41
Q

Extensor pollicis longus

A

Origin: shaft of ulna and interosseous membrane
Insertion: base of distal phalanx of thumb
Function: extends the thumb
Innervation: radial nerve

42
Q

Extensor pollicis brevis

A

Origin: shaft of radius and interosseous membrane
Insertion: base of proximal phalanx of thumb
Function: extends the thumb
Innervation: radial nerve

43
Q

Flexor pollicis longus

A

Origin: anterior radius and interosseous membrane
Insertion: distal phalanx of thumb
Function: flexes the thumb
Innervation: median nerve

44
Q

Flexor digitorum profundus

A

Origin: coronoid process and shaft of ulna, interosseous membrane
Insertion: distal phalanges 2-5
Function: flexes wrist and digits
Innervation: ulnar nerve

Anatomy Lab (5 decks)

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