FORELIMB Flashcards
What muscles are responsible for extension of the shoulder
Supraspinatus
Origin and insertion of the supaspinatus
Origin= supraspinatus fossa Insertion= greater tubercle of the humerus
Which nerve innervates the supraspinatus muscle
Suprascapular nerve
What muscles flex the shoulder
Deltoids
Teres major
Origin and insertion of the deltoids
Origin = scapula spine and acromion Insertion = deltoid tuberosity of humerus
What nerve innervates the deltoid muscles
Auxiliary nerve
Origin and insertion of the teres major
Origin= caudal border of the scapular
Insertion=teres major tuberosity of the humerus
What nerve innervates the teres major
Auxiliary nerve
What muscles extend the elbow
Brachial triceps
Describe the origin and insertion of the brachial triceps
Origin = humerus Insertion= olecranon
Which nerve innervates the brachial triceps
Radial nerve
What muscle flex the elbow
Brachial biceps
Brachialis
Origin and insertion of the brachial biceps
Origin =supraglenoid tubercle of scapular
Insertion= medial tuberosity of radius
Which nerve innervates the brachial biceps muscle
Musculocutaneous nerve
Origin and insertion of the brachialis muscle
Origin= humerus Insertion= Coronoid process of the ulnar
What nerve innervates the brachialis muscle
Musculocutaneous nerve
What muscles extend the carpus/digits
- lateral digital extensor
- common digital extensor
- radial carpal extensor
- ulnar carpal extensor
Origin and insertion of the lateral digital extensor
Origin = lateral epicondyle of humerus Insertion= proximal phalanx of digits 4 and 5
Origin and insertion of the common digital extensor
Origin= lateral epicondyle of the humerus Insertion= distal phalanx of each digit
Origin and insertion of the radial carpal extensor
Origin= lateral epicondyle of humerus Insertion= metacarpal 3 bone
Origin and insertion of ulnar carpal extensor
Origin= lateral condyle of humerus insertion= accessory carpal bone and metacarpal bone 5
What muscles flex the carpus and digits
- radial carpal flexor
- ulnar carpal flexor
- superficial digital flexor
Origin and insertion of radial carpal flexor muscle
Origin = medial epicondyle of humerus Insertion = metacarpal bones 2 and 3
Origin and insertion of ulnar carpal flexor muscle
Origin= medial epicondyle of the humerus Insertion= accessory carpal bone
Origin and insertion of the superficial digital flexor muscle
Origin= medial epicondyle of olecranon Insertion= middle phalanx of each digit
What nerve innervates the radial carpal flexor
Median nerve
Why nerve innervates the ulnar carpal flexor muscle
Radial nerve
What nerve innervates the superficial digital flexor muscle
Median nerve
Which muscle pronate the forelimb
Pronator teres
Origin and insertion of the pronator teres
Origin= medal epicondyle of the humerus Insertion= dorsal surface and medial border of radius
What nerve innervates the pronator teres
Median and ulnar nerves
What is pronation
Medial rotation of the limb
Which muscles supinate the forelimb
Supinator
Origin and insertion of the supinator
Origin= lateral epicondyle of the humerus Insertion= upper medial radius
What nerve innervates the supinator
Radial nerve
What is supination
Medial rotation of the limb
Describe the shoulder joint
Scapular and humerus
Ball and socket joint
Protraction, retraction, flexion and extension
Describe the elbow joint
Humerus radius and ulnar
Hinge joint
Flexion and extension
Describe the carpus joint
2 rows of carpal bones
Hinge joint
Flexion and extension
Describe the metacarophalangeal joint
Condyle of metacarpus and proximal phalanges
Hinge joint
Flexion and hyperextension
Describe the proximal interphalangeal joint
Proximal and middle phalanges
saddle
Flexion and extension
Describe the distal interphalangeal joint
Middle and distal phalanges
Saddle joint
Flexion and extension
Describe the formation and location of the brachial plexus
Formed by the ventral rami of spinal nerves C6-T1
Found sat the axilla , space between the limb and the trunk
List the order at which the nerves of the forelimb leave the brachial plexus
- suprascapular
- subscapular
- musculocutaneous
- axillary
- radial
- median
- ulnar
Describe the major arteries of the forelimb
Auxiliary Subscapular Brachial Medial Radial Ulnar The veins and arteries run alongside the corresponding nerves
Where can a pulse be felt in the forelimb
- brachial
- radial
Which vein do you use in forelimb for iv
Cephalic
Which muscles are involved in the thoracic sling
- rhomboideus
- serratus ventralis
- pectoralis