Sternal part -originates from the posterior aspect of xiphoid process. Costal part - originates from the internal surfaces of the lower costal cartilages and ribs 7-12. Lumbar part - originates from the bodies of vertebrae L1-L3 and intervertebral discs, the anterior longitudinal ligament and ...
They are normally located high in the abdominal cavity and against its back wall, lying on either side of the vertebral column between the levels of the 12th thoracic and third lumbar vertebrae, and outside the peritoneum, the membrane that lines the abdomen. Britannica Quiz Facts You Should ...
Characteristic of the vertebrate form, the human body has an internal skeleton that includes a backbone of vertebrae. Typical of mammalian structure, the human body shows such characteristics as hair, mammary glands, and highly developed sense organs. Get Unlimited Access Try Britannica Premium for ...
human muscular system: lateral viewLateral view of the human muscular system. Characteristicof the vertebrate form, the human body has an internalskeletonthat includes a backbone of vertebrae. Typical of mammalian structure, the human body shows such characteristics ashair,mammary glands, and highly ...