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3 Νοε 2023 · Key facts about the back muscles; Extrinsic/superficial back muscles: Immigrant muscles of the upper limb that lie superficially in the back. - Superficial layer: trapezius, latissimus dorsi, levator scapulae, rhomboid muscles - Intermediate layer: serratus posterior muscles
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.
3 Νοε 2023 · It comprises the vertebral column (spine) and two compartments of back muscles; extrinsic and intrinsic. The back functions are many, such as to house and protect the spinal cord, hold the body and head upright, and adjust the movements of the upper and lower limbs.
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.
24 Ιουλ 2024 · Think of these four upper back muscles — the supraspinatus, infraspinatus, teres minor, and subscapularis — as critical infrastructure.
Your back muscles work together to allow you to bend over, twist, turn your head and extend your back. They also help you breathe by expanding and contracting your chest when you breathe in (inhale) and out (exhale).
The superficial back muscles consist of the trapezius, levator scapulae, rhomboid major, rhomboid minor, and latissimus dorsi muscles (Figure 1-1A; Table 1-1). Although these muscles are located in the back, they are considered to be muscles of the upper limbs because they connect the upper limbs to the trunk and assist in upper limb movements ...
