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| Deltoid |
The deltoid is not fully developed in fetal pigs. It is an elongated, thin muscle extending the anterior surface of the shoulder of the forelimb. This muscle raises the humerus.Using the blunt probe, you must remove all the fat and connective tissue from this area before you can fully isolate this muscle.
The following pictures are the extensors of the wrist and digits found on the lateral side of the forearm.
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| Antebrachial Fascia |
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| Brachioradialis |
The brachioradialis assists in flexing the elbow.
The picture to the left shows the other four extensors of the wrist and digits. Starting from the far left they are: extensor carpi radialis, extensor digitorum communis, extensor digitorum lateralis, and extensor carpi ulnaris.
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| Biceps Brachii |
The biceps brachii lies just medial to the brachiocephalic and the pectoralis muscles. It comes from the scapula and inserts on the proximal ends if the radius and the ulna. This muscle flexes the lower forearm. To isolate this muscle you must use the blunt probe to remove any connective tissue form the area. Then use the probe to separate the biceps brachii muscle from the surrounding muscles.
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| Triceps Brachii |
The triceps muscle consists of the triceps brachii medial head and the triceps brachii long head. You must use your blunt probe to remove any connective tissue and fat from the area and then separate both muscles from each other. This muscle extends the elbow.
The picture to the left shows the other four extensors of the wrist and digits. Starting from the far left they are: extensor carpi radialis, extensor digitorum communis, extensor digitorum lateralis, and extensor carpi ulnaris.
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