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division, the latter has both cervical and mastoid parts (previously the parts were designated cleidocervicalis m.and cleidomastoideus m.). features a clavicular intersection that separates its cleidobrachialis m. (In contrast, intrinsic muscles are attached totally to limb bones and thus they move only joints of the limb.) The largest extrinsic limb muscle, the serratus ventralis m., holds the weight of the trunk as it is suspended between the thoracic limbs. They move the limb relative to the body, but if the limb is anchored by body weight, the body is moved relative to the limb. Their actions depend on weight distribution. Extrinsic muscles have one attachment on the limb and one attachment on the trunk or neck/head. There are eight extrinsic muscles of the thoracic limb. The superficial-deep boundary is often ambiguous. The former occupies the subcutaneous space between deep fascia and the skin. The latter is found among the muscles and bones of the trunk and limbs.
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Fascia and areolar tissue are found together in both superficial (subcutaneous) and deep locations.Ī distinction is made between superficial fascia and deep fascia. These include: superficial fascia, areolar tissue, cutaneus trunci m, and mammary glands (5 pair in the dog 4 pair in the car).Ī distinction can be made between fascia (highly fibrous) and areolar tissue (less fibrous with pockets for fat and fluid).
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#Intrinsic versus extrinsic foot muscles skin
After examining the outer surface of the cadaver, incise and reflect skin from the thorax, neck, and brachium.