Shoulder blade bone shape. 1 The three shoulder bones, along with many nerves, muscles, and ligaments, play a role in shoulder motion. Clavicle (collarbone): This thin long bone is the connection between the arm and chest. The bone is surrounded and supported by a complex system of muscles that work together to help you move your arm. Sep 20, 2024 · What Is the Scapula? The scapula is a triangle-shaped bone positioned at the back of your shoulders. It is the connection between the other two bones in the shoulder region. In this article, we shall look at the anatomy of the scapula – its bony landmarks, articulations, and clinical correlations. Structurally, it features a body, two processes (the acromion and the coracoid process), and a glenoid cavity, which articulates with the humerus to form the Sep 11, 2023 · The scapula, also known as the shoulder blade, is a flat triangular bone located at the back of the trunk and resides over the posterior surface of ribs two to seven. scapula, either of two large bones of the shoulder girdle in vertebrates. [2] The scapula is a thick, flat bone lying on the thoracic wall that provides an attachment for three groups of muscles: intrinsic, extrinsic, and stabilizing and rotating muscles. The scapula (shoulder blade) is a bone, shaped somewhat like a triangle, that lies in the upper back. It sits over ribs two to seven. The scapula’s costal surface is the front — the side that faces your ribcage. Irregular Bones An irregular bone is one that does not have any easily characterized shape and therefore does not fit any other classification. In humans they are triangular and lie on the upper back between the levels of the second and eighth ribs. Apr 7, 2024 · Shoulder Anatomy Bones Scapula (Shoulder Blade) The scapula, or shoulder blade, is a flat triangle bone at the back of your body. Posterior (inferior) surface. It serves as an attachment site for several muscles that facilitate the shoulder's complex movements. Many different muscles are anchored to this shoulder blade bone. It also connects to the humerus and The scapula, commonly known as the shoulder blade, is a flat, triangular-shaped bone that provides a vital part of the shoulder girdle. The . It forms a ball-and-socket joint at your upper arm (humerus) and another joint at the collarbone (the clavicle). It is a triangular, flat bone, which serves as a site for attachment for many (17!) muscles. Sep 6, 2021 · Find out about the scapula bone/shoulder blade, its parts (borders, angles, muscles), functions, along with labeled diagram (anterior, posterior scapula) Feb 7, 2024 · What is the anatomy of the scapula? The scapula’s flat, triangular shape is why people call it the shoulder blade. Dec 20, 2023 · The bone that joins the clavicle with the humerus is called the scapula, or shoulder blade. The scapula is an important bone as Sep 8, 2025 · The scapula (shoulder blade) is a triangular bone in your upper back. Examples include the cranial (skull) bones, the scapulae (shoulder blades), the sternum (breastbone), and the ribs. In humans, it is a flat bone, roughly triangular in shape, placed on a posterolateral aspect of the thoracic cage. Oct 1, 2024 · In doing so, the scapula connects the upper limb to the trunk. Lateral surface. The back of the shoulder girdle is formed by the scapula. The scapula, along with the clavicle and the manubrium of the sternum, make up the pectoral (shoulder) girdle which connects the upper limb of the appendicular skeleton to the axial skeleton. Flat bones serve as points of attachment for muscles and often protect internal organs. Even though it’s one bone, the scapula has three surfaces: Costal (anterior) surface. It forms the shoulder girdle with the clavicle and the sternum’s manubrium, linking your arm to your body’s core. Scapula (shoulder blade): The large flat bone at the upper back, it serves as the attachment point for multiple muscles like the trapezius, pectoralis major, and deltoid. The scapula also helps the humorous to stay in place. The scapula is crucial because many arm and shoulder muscles attach to it. kyeu rkkm b5l jdkm7 fihd ijofr j2 fboa4 05d u9n