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28 Cards in this Set
- Front
- Back
Sternocephalicus muscle |
Both sides fo body |
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Splenius Muscle
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Adds to fleshy part of the dogs neck |
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Rhomboideus muscle
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Thick muscle that has four sides and a very pointy front end. |
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Omotransversarius muscle
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Thick full muscle that begins in the neck. |
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Rhomboideus muscle
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Thick muscle that has four sides and a very pointy front end. |
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Brachiocephalicus muscle
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Has one insertion but hen splits into two thereafter. |
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Supraspinatus muscle
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Creates the form of the front shoulder |
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Infraspinatus muscle
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Contributes to the shoulders Form and shape.
Origin - outer top part of the scapula (infraspinous fossa). Insertion - Into the outer side of the greater tubericle of the humerus. Action - extend or flex shoulder joint, abduct shoulder, rotate arm laterally and stabilize the shoulder joint. |
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Deltoid muscle
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This muscle is a superficial muscle that has two portions. The front portion which is
wider and arises from the scapulars spine and the acromial portion which is smaller and tapers at both ends. Origin - Acromial - acromion at the bottom end of the scapulars spine. Spinal – scapulars spine Insertion - On the outside of the humerus a third of the way down. Action - Makes shoulder joint flex and pulls the foreleg away from the dog’s body |
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Biceps Brachii
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This is a slender muscle with only one head. |
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Triceps Brachii muscle
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This muscle is a big fleshy superficial muscle that has three heads, two long
heads and one lateral head. Origin - Long head – on the rear edge of the scapula from the lower part until two thirds up. Lateral Head – on the humerus’s curved ridge on upper and outer surface. Insetion - At the humerus on the top and side of the olecranon (elbows point) Action - Long Head – Flexes the shoulder joint and extends the elbow joint Lateral Head – only extends the elbow joint |
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Latissimus Dorsi muscle
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A superficial muscle. It is a large thin muscle that is
triangular in shape. Origin - On the Top of the spines muscles starting at the top of the shoulder to the tips of the lumbar vertebrae as well as from the last two or three ribs. Insertion - On the nearest middle part of the humerus. Action - pulls leg backwards |
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Pectoralis Descendens muscle
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Origin - On the sternums front end |
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Pectoralis Transversus Muscle
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Is a flat and rectangular shaped muscle.
Origin - It starts at the front portion of the sternum and goes down to the level where the fourth rib is. Insertion - It inserts in a line that runs down most of the front of the humerus. Action - Pulls forelimb towards the middle line of the body |
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Pectoralis Profundus
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Origin - On the majority of the sternum (not the front tip) and from the surface of the front part of the abdomen where the xiphoid process is.
Insertion - On the top inside surface of the humerus, and vertically from the upper third till the upper half of the front of the humerus. Action - adducts foreleg and moves it backwards with movement |
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Trapezius Muscle
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triangular shaped superficial muscle. It is divided into two smaller triangular shaped muscles by a by a thin tendinous area |
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Longissimus Dorsi Muscle
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it is the biggest and longest muscle in spine |
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Serratus Ventralis Muscle
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A deep layer muscle that is divided into two portions The Neck portion and the Chest portion. |
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Gluteus Medius Muscle
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Gives the dogs buttocks its form. |
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Superficialis Gluteus muscle
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Origin - It originates from the first tail vertebrae, the front half of the ligament that connects the sacrum to the ischiatic tuberosity and the fascia that covers the gluteus medius. |
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Gracilis Muscle
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It lies on the back part of the inner side of the thigh
Origin - The middle bottom of the pelvis Insertion - inserts into the tibias front edge and into the heel bone. Action - Pulls limb, extends hip, flexes knee joint, extends ankle joint. |
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Sartorius Muscle
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Starts on the front end of the pelvis and ends on the inside of the dog’s knee. This muscle has two long muscle bands that are next to each other. A front (Cranial) part and a rear (caudal) part.
Origin - Front portion – in a line on the pelvis front edge. Rear portion – in a line on the bottom edge of the front end of the pelvis. Insertion - Front portion – inserts into the patella and the fascia of the knee along with the vastus medialis and the rectus femoris. Rear Portion – The front edge of the tibia Action - Flex hip and extend stifle |
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Quadriceps muscles
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There are four muscles that make up this muscle. Vastus Lateralis, Vastus Medius, Deep Vastus Intermedius and the Rectus Femoris.
Origin - Vastus medialis – in small areas. On the inside of the femur near its upper end. Vastus lateralis – in small areas. On the outside of the femur near its upper end. Deep vastus intermedius – On the inside of the femur. Rectus Femoris – in one area on the pelvis. Insertion - All of the vastus muscles insert into their own areas of the rectus femoris then they all insert together into the patella and so also the tibia. Action - extend stifle and flex hip |
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Tensor Fascae Latae Muscle
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Is a triangular shaped muscle that divides into two on its surface |
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A hamstring muscle Biceps femoris
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Big and wide muscle that consists of the superficial head and the deep head. |
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A hamstring Muscle. Semitendinosus Muscle
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forms a very small part of the thighs rear profile.
Origin - It originates on the Outside corner of the back part of the pelvis. Insertion - It inserts about one fourth of the way down the tibia on its front edge. And on the calcaneus of the heel bone. Action - Extends hip and ankle joint, flexes knee joint and rotates leg inwards |
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A hamstring Muscle. Semimembranosus Muscle
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fleshy thick muscle that has two heads.
Origin - On the back end of the pelvises bottom edge in a line. Insertion - Inserts On the inner back corner of the femur in a vertical line and ends In two places, just before the bottom of the bone, and in a small area on the inside of the top end of the tibia. Action - Pulls the limb towards the middle of the body, extends hip joint |
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Hind Adductor muscle
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There are three adductor muscles. Adductor longus, adductor magnus and the brevis muscle. These muscles are found in the deep layer of the muscles.
Origin - They all originate on the pelvic joint via the symphysial tendon. Also Near the ischiatic arch, the ventral surface of the pubis and ventral surface of the ischium. Insertion - Inserts into the whole lateral lip of the caudal rough face of the femur. Action - Adduct limb and extend dogs hip and stabilizes hind leg |