Internal intercostal muscles are a group of skeletal muscles located between the ribs. They are eleven in number on either side.
origin : Rib – superior border .
Insertion : Rib – inferior border.
Nerve : Intercostal nerves.
Actions :
Hold ribs steady
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Gluteus maximus muscle and minimus, as the gluteal muscles, and sometimes referred to informally as the “glutes”) is the main extensor muscle of the hip. Gluteus Maximus Muscle Anatomy Origin the posterior surface of the ilium, sacrum, and coccyx. It slopes across the buttock at a 45-degree angle. Insertion It inserts into the iliotibial tract…
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