which bones form the three main divisions of pelvis?
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Sagittal section of the pelvic bones. Each innominate bone is formed from three bones: the ilium, the ischium, and the pubis.
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It consists of the skull, vertebral column (including the sacrum and coccyx), and the thoracic cage, formed by the ribs and sternum. The appendicular skeleton is made up of all bones of the upper and lower limbs and the girdles which attach them to the axial skeleton.
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These bones can be grouped in two divisions: axial skeleton and appendicular skeleton. The 80 bones of the axial skeleton form the vertical axis of the body. They include the bones of the head, vertebral column, ribs and breastbone or sternum.
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Each os coxa is a result of the fusion of three bones: the ilium, ischium, and pubis. These three bones fuse at the deep hemispherical socket, the acetabulum, which receives the femur. A. Ilium: Large, flaring bone; forms superior region of os coxa.
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The axial skeleton makes up our central axis and consists of the following bones: skull, vertebrae, ribs and sternum. The appendicular skeleton consists of the limbs and girdles. The girdles are the attachment points for the limbs.
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The Axial Skeleton The skeleton is subdivided into two major divisions—the axial and appendicular. The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back (Figure 7.2). It serves to protect the brain, spinal cord, heart, and lungs.
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The human body consists of a bony skeleton and muscles. The three main parts of the body are: the head, the trunk and the limbs (extremities). The head is composed of the cranial and facial parts.
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Each of the lower limb bones may be described regionally as a bone of the pelvic girdle, thigh, leg, or foot (Figure 7). The pelvic girdle is formed by the paired os coxae (coxal bones). Together with the sacrum and coccyx of the axial skeleton, this group of bones forms the bony pelvis.
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The appendicular skeleton includes the bones of the shoulder girdle, the upper limbs, the pelvic girdle, and the lower limbs.
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The bones of the body come in a variety of sizes and shapes. The four principal types of bones are long, short, flat and irregular.
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Three main bones called the femur, tibia and fibula make up human legs. These bones are analogous to the arm bones. The femur is the main bone in the upper leg while the tibia and fibula are in the lower leg. The knee joint, which helps with leg mobility, connects the upper and lower leg.
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The three areas of each hip bone, the ilium, pubis, and ischium, converge centrally to form a deep, cup-shaped cavity called the acetabulum. This is located on the lateral side of the hip bone and is part of the hip joint.
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The skeletal system in vertebrates is divided into the axial skeleton (which consists of the skull, vertebral column, and rib cage), and the appendicular skeleton (which consists of limb bones, the pectoral or shoulder girdle, and the pelvic girdle).
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The hip bone (os coxae, innominate bone, pelvic bone or coxal bone) is a large irregular bone, constricted in the center and expanded above and below. In some vertebrates (including humans before puberty) it is composed of three parts: the ilium, ischium, and the pubis.
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The human body consists of a bony skeleton and muscles. The three main parts of the body are: the head, the trunk and the limbs (extremities). The head is composed of the cranial and facial parts. It contains the brain, the centre of the nervous system.
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['Skull. Cranium and facial bones.', 'Hyoid bones. In next between lower jaw and larynx.', 'Vertebral column. Vertebrae and intervertebral discs; sacrum and coccyx.', 'Thoracic cage. 12 pairs of ribs and sternum.']
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['The pubis forms the anterior part of the pelvic girdle. ... ', 'The ilium is the largest and most recognizable part of the pelvis: it looks like the top of a wing.']