3 Axial skeletal and body cavities.pptx
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Transcript of 3 Axial skeletal and body cavities.pptx
CRANIUM
Upper part of skullMain source of protection for brain consists of 8 bones called the cranial bones.
FACE Face is formed by 14 bones, called facial
bones, and includes the mandible whose movement
allows for eating and speech
CAVITIES OF BODYOrgans that make up systems of body are
contained in four cavities Cranial Thoracic Abdominal pelvic
CRANIAL CAVITY Contains brain Boundaries Anteriorly 1 frontal bone Laterally 2 temporal bones Posteriorly 1 occipital bone Superiorly 2 parietal bone Inferiorly 1 sphenoid and 1
ethmoid bone and parts of frontal ,temporal and occipital bone
THORACIC CAVITY
Situated in upper part of trunk Boundaries Anteriorly sternum and costal cartilages Laterally ribs with muscles Posteriorly Thoracic vertebrae and intervertebral disc Superiorly structures forming root of neck Inferiorly diaphragm
ABDOMINAL CAVITY Largest, oval shaped Superiorly diaphragm Anteriorly muscles Posteriorly Lumber vertebrae Laterally lower ribs and muscles Inferiorly pelvic cavity
PELVIC CAVITY Funnel shaped Superiorly abd. Cavity Anteriorly pubic bones Posteriorly sacrum and coccyx Laterally innominate bones Inferiorly pelvic floor