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Anatomy > Neck and Forelimb > Flashcards

Neck and Forelimb Flashcards

1
Q

Nuchal Ligament

A

Supports head and prevents excessive ventroflexion

O: 1st three thoracic spinous processes
I: Dorsal spinous process of C2

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2
Q

Supraspinatus

A

Extend and stabilize joint

O: Supraspinous fossa
I: Greater tubercle, anterior to the infraspinatus

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3
Q

Infraspinatus

A

Extend or flex the joint, abduct shoulder, rotate arm laterally, stabilize the joint

O: Infraspinous fossa
I: Lateral greater tubercle between Supraspinatus and Teres Minor tendons

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4
Q

Teres Minor

A

Flex shoulder and externally rotate arm

O: Distal 1/3 of caudal border of scapula
I: Greater tubercle, caudal to Infraspinatus tendon

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5
Q

Deltoideus (2 heads)

A

Flex shoulder

O: Spine of scapula (spinous head) and Acromion (acromial head)
I: Deltoid tuberosity of humerus

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6
Q

Teres Major

A

Flex shoulder, rotate arm medially

O: Caudal angle and border of scapula
I: Teres Major tuberosity of humerus (prox and med humerus)

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7
Q

Subscapularis

A

Addict and extend shoulder, during flexion; aids in stabilizing joint; tendon functions as a medial collateral ligament

O: Subscapular fossa
I: Minor tubercle of humerus via short tendon

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8
Q

Anconeus

A

Extend elbow

O: Distal-lateral humerus, just proximal to elbow
I: Lateral surface of prox 1/8 of Ulna
N: Radial nerve

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9
Q

Triceps Brachii - Medial Head

A

Extend elbow

O: Medial surface of humerus
I: Olecranon
N: Radial nerve

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10
Q

Triceps Brachii - Accessory Head

A

Extend elbow

O: Neck of humerus
I: Olecranon
N: Radial nerve

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11
Q

Triceps Brachii - Lateral Head

A

Extend elbow

O: Proximal lateral humerus
I: Olecranon
N: Radial nerve

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12
Q

Triceps Brachii - Long Head

A

Extend elbow and flex shoulder

O: Caudal border of scapula
I: Olecranon
N: Radial nerve

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13
Q

Biceps Brachii

A

Flex elbow and extend shoulder

O: Supraglenoid tubercle of scapula
I: Ulna and Radius, medially, just distal to elbow

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14
Q

Extensor Carpi Radialis

A

Extend carpus

O: Lateral epicondyle of humerus
I: Proximal ends of MC 2 and 3
N: Radial nerve

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15
Q

Common Digital Extensor

A

Extends joints of the four digits and carpus

O: Lateral epicondyle of humerus
I: Extensor processes of distal phalanges of digits 2-5
N: Radial nerve

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16
Q

Deep Digital Flexor

A

Flex digits and carpus

O: Humeral head, Ulnar head, Radial head
I: Palmar surface of proximal end of distal phalanges of each digit

17
Q

Flexor Carpi Ulnaris

A

Flex carpus

O: Ulnar head and Humeral head
I: Accessory carpal bone

18
Q

Superficial Digital Flexor

A

Flex carpus, MC/P, and prox interphalangeal joints of digits 2-5

O: Medial epicondyle of humerus
I: Medial and lateral surfaces of middle phalanges of digits 2-5 (wraps around deep digital flexor tendon)

Anatomy (4 decks)

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