Muscles 2 Flashcards
(26 cards)
What are the main extensors of the shoulder?
Supraspinatus and Biceps Brachii
How many heads does the triceps muscle have in the dog?
4
What muscle protects the radial nerve?
Brachialis
What are the flexors of the shoulder?
Long head of triceps, Infraspinatous, Teres major and minor
What are the extensors of the elbow?
All 4 heads of Triceps
What are the Flexors of elbow?
Biceps brachii, Brachialis
Flexors of carpus
Superficial digital flexor, deep digital flexor, flexor carpi ulnaris
Hip flexors
Iliopsoas, Rectus femoris
Hip extensors
Superficial, medial, and deep gluteals
Stifle extensors
Rectus femoris, vastus lateralis, vastus intermedius, vastus medialis
Stifle flexors
BIceps femoris, Semitendinosus, Semimebranosus, Gastrocnemius
Hock flexors
Long digital extensor and cranial tibial
Hock extensors
Gastrocnemius, superficial digital flexor, deep digital flexor
What is the function of the Latissimus Doris?
Flex the shoulder
Draw the trunk cranial in weight bearing
Adductor the shoulder
Support the trunk
Which muscle is responsible for shoulder flexion or extension depending on position, shoulder abduction and lateral rotation, and stabilizes lateral shoulder?
Infraspinatous
What is the proximal attachment of the infraspinatous?
Infraspinous process
What is the distal attachment of the infraspinatous?
Lateral side of greater tubercle of humerus
Which nerve innervate the infraspinatous?
Suprascapular nerve
How many parts does the Deltoideus have?
2
Spinous head. Shoulder flexion
Acromegaly head. Shoulder abduction
What are the actions of the supraspinatous muscle?
Extends the shoulder
Stabilizes and prevents collapse of the shoulder
What is the distal attachment of the supraspinatous muscle?
Greater tubercle of humerus via thick tendon
Which muscle abducts, extends and stabilizes the shoulder medically?
Subscapularis
What are the actions of the Teres Major?
Shoulder flexion and medial rotation
What are the actions of the Teres minor?
Shoulder flexion and lateral rotation
