Name there major muscles in the back?

Major Muscles of the Back:

1. Trapezius: The trapezius is a large, superficial muscle that covers much of the upper back. It extends from the base of the skull to the mid-back and can be divided into three sections: the upper, middle, and lower trapezius. The upper trapezius elevates and retracts the scapula (shoulder blade), while the middle and lower trapezius depress and retract the scapula.

2. Latissimus Dorsi: Also known as the "lats," the latissimus dorsi is a large muscle that covers the lower back and sides. It originates along the spine and inserts into the humerus (upper arm bone). The lats primarily function to adduct (bring towards the midline) and extend the arm at the shoulder joint. They are also involved in stabilizing and rotating the shoulder.

3. Erector Spinae: This group of muscles runs along the spine from the base of the skull to the pelvis. The erector spinae muscles are responsible for extending and stabilizing the spine, as well as assisting with lateral flexion (side bending). It consists of several sub-muscles, including the longissimus, iliocostalis, and spinalis muscles.

4. Rhomboids: The rhomboids are a pair of muscles located between the shoulder blades. They connect the thoracic vertebrae (spine) to the scapula. The rhomboids primarily function to retract (pull back) the scapula, which helps to stabilize the shoulder joint and improve posture.

5. Levator Scapulae: The levator scapulae is a thin muscle that runs from the neck to the scapula. It functions to elevate (raise) the scapula and assist in neck flexion (bending forward).