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Latissimus Dorsi

Latissimus dorsi (lat) is a large, flat triangular muscle which is also the widest muscle in the human body. It begins in the lower portion of the back and tapers as it ascends to a narrow tendon that attaches to the humerus anteriorly. Due to which the

Psoas Major

Psoas Major is a long fusiform muscle stretching from the sides of lumbar vertebrae to the lesser trochanter of the femur. The enclosing of the Psoas major is a fascial sheath known as Psoas Sheath. Origin The origination of the psoas major  muscle takes place from 14

Ventral Root of Spinal Nerves

A ventral root as well as a dorsal root combines to create a spinal nerve, which travels outside from the vertebral canal via an intravertebral foramen (bone opening). The ventral root (motor root) of every single spinal nerve includes axons from motor neurons whose cell bodies are

Psoas Minor, Iliacus and Quadratus Lumborum

Psoas Minor The Psoas Minor muscle is present in the bodies of only 50% of the people. If present, it runs in the downward direction, in front of the psoas major. Resembling the plantaris muscle of the leg in create and shape, it is only restricted to

Arachnoid Mater (Spinal Cord)

The arachnoid mater is located amongst the pia mater internally as well as dura mater externally and is a fragile impermeable membrane that surrounds the spinal cord. A wide space which is filled with cerebrospinal fluid, referred to as the subarachnoid space separates it from the pia

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