OINAs (Exam 1) Flashcards
1
Q
Ventral serratus
A
*O: Transverse processes of C4-7
* I: Scapular cartilage
* N: Ventral branch of local cervical
* A: Suspends the trunk, raises the neck when the forelimb is fixed, & may support inspiration
2
Q
Subclavius
A
*O: Sternum & costal cartilages
* I: Blends w/ supraspinatus & shoulder fascia
* N: Cranial pectoral n.
* A: Suspends the trunk & stabilizes the shoulder joint
3
Q
Omotransversarius
A
*O: Shoulder fascia
* I: Transverse processes of C2-4
* N: Medioventral branch of local cervical nn
* A: Protract the limb & bends the neck laterally
4
Q
Superficial pectoral
A
- O: Costal cartilages & Manubrium sterni
- I: Forearm fascia & deltoid tuberosity
- N: Cranial & caudal pectoral n
- A: Connect the forelimb w/ the trunk, adduct, & pro & retract the forelimb
5
Q
Deep pectoral
A
- O: Sternum, distally on ribs, & tunica flava abdominis
- I: Major/minor tubercles of the humerus & tendon origin of coracobracialis
- N: Cranial & caudal pectoral
- A: Suspends the trunk btw/ the forelimbs, retracts limb, & stabilizes the shoulder joint
6
Q
Trapezius
A
- O: Nuchal & supraspinous ligaments from C2 to T10
- I: Dorsal third of scapular spine (thoracic part) & entire scapular spine (cervical part)
- N: Dorsal branch of accessory n
- A: Elevates the shoulder, draws scapula craniodorsally & caudodorsally
7
Q
Rhomboideus
A
- O: Nuchal & dorsoscapular ligaments from C2 to T8
- I: Scapular cartilage
- N:Medioventral br of the local thoracic & cervical n
- A: Draws scapula dorsally & cranially & elevates the neck
8
Q
Latissimus dorsi
A
- O: Supraspinous ligament from T3 caudally via thoracolumbar fascia
- I: Teres major tuberosity of humerus together w/ teres major muscle
- N: Thoracodorsal n
- A: Retracts the limbs, flexes the shoulder joint, & when the limb is fixed it draws the trunk cranially
9
Q
Supraspinatus
A
- O: Supraspinous fossa & scapular cartilage & spine
- I: Greater & lesser tubercles of humerus
- N: Suprascapular
- A: Extends & Stabilizes the shoulder joint
10
Q
Infraspinatus
A
- O: Infraspinous fossa & scapular cartilage & spine
- I: Fleshy on the greater tubercle of the humerus, strong tendon to the lat & surface of the greater tubercle distal to lat insertion
- N: Suprascapular
- A: Extends & flexes the shoulder joint, functions as a contractile ligament
11
Q
Teres minor
A
- O: caudal border of the scapula
- I: Proximal to deltoid tuberosity
- N: Axillary
- A: Flexes the shoulder joint
12
Q
Deltoideus
A
- O: Caudal border of the scapula & clavicular inscription
- I: Crest of the humerus & deltoid tuberosity
- N: Axillary
- A: Advances limb & Flexes shoulder joint
13
Q
Subscapularis
A
- O: Subscapular fossa of scapula
- I: Lesser tuberosity
- N: Subscapular & axillary
- A: Predominantly an extensor of the shoulder joint
14
Q
Teres major
A
- O: Caudal border of the scapula
- I: Teres tuberosity
- N: Axillary
- A: Flexes shoulder joint
15
Q
Biceps brachii
A
- O: Supraglenoid tubercle
- I: Radial tuberosity, medial collateral lig, vialacertus on the tendon of the extensor carpi radi
- N: Musculocutaneous
- A: Extensor of the shoulder joint, flexor of the elbow joint, stabilizer of carpus (in stay apparatus)
16
Q
Brachialis
A
- O: Proximocaudal surface of humerus
- I: Proximomedial surface of radius
- N: Musculocutaneous & radial
- A: Flexor of elbow joint
17
Q
Triceps brachii
A
- O: Caudal border of the scapula (long head), deltoid tuberosity (Lateral head), medial surface of humerus (medial), & border of olecranon fossa (anconeus)
- I: Lateral surface of olecranon
- N: Radial
- A: Extends elbow joint & raises joint capsule to prevent its being pinched during extension of joint
18
Q
Extensor carpi radialis
A
- O: Lateral supracondylar crest & radial fossa
- I: Proximodorsal on Mc3
- N: Radial
- A: Extends carpus
19
Q
Common digital extensor
A
- O: Lateral epicondyle f the humerus
- I: Proximal phalanx & extensor process of distal phalanx
- N: Radial n
- A: Carpal & digital extensor
20
Q
Lateral digital extensor
A
- O: Proximal end of radius & ulna
- I: Proximodorsal on the proximal phalanx
- N: Radial
- A: extensor of fetlock joint (not digit)
21
Q
Extensor carpi ulnaris (ulnaris lateralis)
A
- O: Lateral epicondyle of the humerus
- I: Short tendon on the accessory carpal bone & proximal on Mc4
- N: Radial
- A: Extend carpus
22
Q
Flexor carpi ulnaris
A
- O: Medial epicondyle of humerus & medial on olecranon
- I: accessory carpal bone
- N: Ulnar
- A: Flexes carpus
23
Q
Superficial digital extensor
A
- O: Medial epicondyle of humerus
- I: Distal collateral tubercles of the proximal phalanx & proximal collateral tubercles of the middle phalanx
- N: Ulnar
- A: Flexes digit & carpus & extends the elbow joint
24
Q
Deep digital flexor
A
- O: Medial epicondyle of humerus, olecranon, & middle caudal surface of radius
- I: Flexor surface of distal phalanx
- N: Median & ulnar
- A: Flexes digit/carpus & extends the elbow joint
25
Flexor carpi radialis
* O: Medial epicondyle of humerus
* I: Proximal end of MC 2
* N: Median
* A: Flexes the carpus
26
Interosseus (medius)
* O: Proximocaudal on MC & palmar carpal lig
* I: Proximal sesamoid bones
* N: Deep branch of ulnar
* A: Counteracts overextension of the fetlock joint
27
Superficial gluteal
28
Middle gluteal
29
Deep gluteal
30
Quadriceps femoris
31
Biceps femoris
32
Semitendinosus
33
Semimembranosus
34
Gracilis
35
Adductor
36
Sartorious
37
Pectineus
38
Long digital extensor
39
Peroneus (fibularis) tertius
40
Cranial tibial
41
Lateral digital extensor
42
gastrocnemius
43
Soleus
44
Deep digital flexor
45
Superficial digital flexor
46
Long digital extensor
47
Lateral digital extensor
48
Interosseous
