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THE THORAX

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Content - • Thorax • Areas of thorax  • Bones of thorax • Muscle of thorax  • THE THORAX -- The thorax is the area of the body situated between the neck and the abdomen. The thorax itself can be split up into various  areas  that contain important structures. The  thorax  is bound by bony structures including the 12 pairs of ribs and thoracic vertebrae, whilst also being supported by many ligaments and  muscles . The  muscles of the thorax  are also important for the vital actions of breathing and muscles that attach to the thoracic wall may also contribute to the general movement of the trunk, upper limbs and the neck. The thoracic cavity is home to many vital organs, notably the lungs/pleurae and the heart, but also includes the thymus gland and the breasts. As the heart is found here, the great vessels associated with it are also found – including the pulmonary arteries/veins, the superior vena cava and the aorta (as well as some of its proximal branches). In this sectio
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CENTRAL NERVOUS SYSTEM

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Development of the Central Nervous System Following fertilisation, the nervous system begins to form in the 3rd week of development. It continues after birth and for many years into the future. Structurally, the nervous system is divided into two parts: Central nervous system – consists of the brain and the spinal cord. Peripheral nervous system – consists of cranial and spinal […] The Venous Drainage of the Central Nervous System The central nervous system consists of the cerebrum, cerebellum, brainstem and spinal cord. Their venous drainage is complex, and rather uniquely, does not follow the arterial supply. The cerebrum, cerebellum and brainstem are drained by numerous veins, which empty into the dural venous sinuses. The spinal cord is supplied by anterior and posterior spinal veins, which drain into the […] Structures of the Central Nervous System [child-pages depth=”1″] Pathways in the Central Nervous System [child-pages depth=”1″] The Arterial Supply to the Central Nervous Syst
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