Difference between revisions of "Elbow Muscles - Horse Anatomy"
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::''Lateral'' and ''Medial'' heads: Shaft of the [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] (lateral and medial aspects, respectively) | ::''Lateral'' and ''Medial'' heads: Shaft of the [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] (lateral and medial aspects, respectively) | ||
:'''Insertion''': Olecranon, proteced by the tricipital bursa against the bone, and subcutaneous bursa against the skin | :'''Insertion''': Olecranon, proteced by the tricipital bursa against the bone, and subcutaneous bursa against the skin | ||
| − | :'''Action''': Extends and stabilizes the elbow | + | :'''Action''': Extends and stabilizes the [[Joints and Ligaments- Horse Anatomy#Elbow Joint|elbow]] |
| + | |||
'''''Tensor fasciae antebrachii''''' | '''''Tensor fasciae antebrachii''''' | ||
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:'''Origin''': Caudal border of the [[Bones and Cartilages - Horse Anatomy#Scapula|scapula]] | :'''Origin''': Caudal border of the [[Bones and Cartilages - Horse Anatomy#Scapula|scapula]] | ||
:'''Insertion''':Antebrachial fascia | :'''Insertion''':Antebrachial fascia | ||
| − | :'''Action''': Tenses antibrachial fascia and extends the elbow | + | :'''Action''': Tenses antibrachial fascia and extends the [[Joints and Ligaments- Horse Anatomy#Elbow Joint|elbow]] |
'''''Anconeus''''' | '''''Anconeus''''' | ||
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:'''Origin''': Distal [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] and olecranon fossa,deep to the triceps | :'''Origin''': Distal [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] and olecranon fossa,deep to the triceps | ||
:'''Insertion''': Lateral olecranon, joining the lateral head of the triceps | :'''Insertion''': Lateral olecranon, joining the lateral head of the triceps | ||
| − | :'''Action''': Extends the elbow | + | :'''Action''': Extends the [[Joints and Ligaments- Horse Anatomy#Elbow Joint|elbow]] |
==='''Flexors'''=== | ==='''Flexors'''=== | ||
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:: Lateral - Proximal [[Bones and Cartilages - Horse Anatomy#Radius and Ulna|radius and ulna]] | :: Lateral - Proximal [[Bones and Cartilages - Horse Anatomy#Radius and Ulna|radius and ulna]] | ||
:It runs through the intertubercular groove of the [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] facilitated by the '''bicipital bursa'''. | :It runs through the intertubercular groove of the [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] facilitated by the '''bicipital bursa'''. | ||
| − | ::'''Action''': Flexes the elbow, extends and stabilises the shoulder during the stance phase | + | ::'''Action''': Flexes the [[Joints and Ligaments- Horse Anatomy#Elbow Joint|elbow]], extends and stabilises the [[Joints and Ligaments- Horse Anatomy#Shoulder Joint|shoulder]] during the stance phase |
'''''Brachialis''''' | '''''Brachialis''''' | ||
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:'''Origin''': Proximocaudal [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] | :'''Origin''': Proximocaudal [[Bones and Cartilages - Horse Anatomy#Humerus|humerus]] | ||
:'''Insertion''': Spirals to insert next to biceps on the medial [[Bones and Cartilages - Horse Anatomy#Radius and Ulna|radius]] | :'''Insertion''': Spirals to insert next to biceps on the medial [[Bones and Cartilages - Horse Anatomy#Radius and Ulna|radius]] | ||
| − | :'''Action''': Flexes the elbow | + | :'''Action''': Flexes the [[Joints and Ligaments- Horse Anatomy#Elbow Joint|elbow]] |
[[Category:To Do - AP Review]] | [[Category:To Do - AP Review]] | ||
Revision as of 10:54, 31 October 2012
Extensors
Triceps brachii
- Innervation: Radial n. from the brachial plexus
- It has three heads:
- Origin:
- Insertion: Olecranon, proteced by the tricipital bursa against the bone, and subcutaneous bursa against the skin
- Action: Extends and stabilizes the elbow
Tensor fasciae antebrachii
- Innervation: Radial n. from the brachial plexus
- Overlies the triceps extending from the scapula to the olecranon
- Origin: Caudal border of the scapula
- Insertion:Antebrachial fascia
- Action: Tenses antibrachial fascia and extends the elbow
Anconeus
- Innervation: Radial n. from the brachial plexus
- Origin: Distal humerus and olecranon fossa,deep to the triceps
- Insertion: Lateral olecranon, joining the lateral head of the triceps
- Action: Extends the elbow
Flexors
Biceps brachii
- Innervation: Musculocutaneous n. from the brachial plexus
- Origin: Supraglenoid tubercle of the scapula
- Insertion: Distally, the muscle divides into a medial and lateral portion.
- Medial - Medial tuberosity on the proximal radius
- Lateral - Proximal radius and ulna
- It runs through the intertubercular groove of the humerus facilitated by the bicipital bursa.
Brachialis