Structure of Pelvic Girdle — NEET Biology
📚 Practice ConceptPelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones – ilium, ischium and pubis. At the point of fusion of the above bones is a cavity called acetabulum to which the thigh bone articulates. The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing fibrous cartilage.
Which of the above statements regarding the pectoral and pelvic girdles are NOT correct? S1: Each coxal bone of the pelvic girdle is formed by the fusion of the ilium, ischium, and pubis, contributing to the acetabulum. S2: The pectoral girdle comprises two halves, with each half consisting of a clavicle and a scapula, forming the shoulder joint with the femur. S3: The pubic symphysis, where the two halves of the pelvic girdle meet ventrally, is characterised by the presence of hyaline cartilage, allowing limited movement. S4: The scapula is a large triangular flat bone found on the dorsal part of the thorax, and its glenoid cavity articulates with the head of the humerus. S5: The acromion process, an elevated ridge on the scapula, serves as the articulation point for the clavicle.
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