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What are the muscles of the human back: Extrinsic (superficial), intermediate, & intrinsic (deep) muscles in upper & lower back with function & labeled diagram
7 lip 2024 · Your lat muscles are the largest muscles in the upper half of your body. They start below your shoulder blades and extend to your spine in your lower back. Levator scapulae: These are smaller muscles that start at the side of your neck and extend to your shoulder blades.
3 lis 2023 · The extrinsic (superficial) back muscles, which lie most superficially on the back. These muscles are also called immigrant muscles, since they actually represent muscles of the upper limb that have migrated to the back during fetal development.
The muscles of the back can be arranged into 3 categories based on their location: superficial back muscles, intermediate back muscles and intrinsic back muscles. The intrinsic muscles are named as such because their embryological development begins in the back, oppose to the superficial and intermediate back muscles which develop elsewhere and ...
There are three different muscle groups found in the back: the superficial group, the deep group, and the intermediate group. Muscles found in the superficial group include rhomboid major, rhomboid minor, levator scapulae, trapezius, latissimus dorsi.
The superficial and intermediate muscle groups (or extrinsic muscles) are also called immigrant muscles, since they actually represent muscles of the upper limb that have migrated to the back during fetal development. The deep/intrinsic back muscles, are also called true back muscles.
The large muscles of the upper back, also known as traps – are shaped like trapezoids or diamonds. They move the shoulder blades ( scapulae ). The trapezoid attaches to the occipital bone of the skull, the outer portion of the clavicle, and the acromion process of the scapula.
