Bones of upper limb notes first year mbbs notes

here are 7 main areas covered in the upper limb; The muscles, bones, joints, nerves, blood and lymphatic supply, anatomical areas, and the structures in the hand. There are a large number of muscles in the upper limb, these are involved in allowing us to move and perform important tasks such as gripping with our hands or raising our arms, they also provide extra stability around the shoulder joint. There are 4 main groups of bones in the upper limb, the bones of the shoulder girdle, upper arm, forearm, and the bones of the hand. These provide skeletal support as well as being the site of origin and attachment for the many muscles to act as leverage points. The joints of the upper limb are found between some of these bones and the muscles crossing them allow us to orient these joints. The nerves of the upper limb arise from a complex arrangement of nerve fibers known as the brachial plexus; These nerves give sensation to our upper limb, as well as innervating the muscles, allowing us to move