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The central nervous system (CNS) is supported and protected by bone and membranous coverings. The brain is located within the cranial cavity of the skull and the spinal cord lies in the vertebral, or spinal, canal within the vertebral column,…

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The peripheral nervous system consists of sensory and motor nerve endings, peripheral nerve trunks, plexuses and ganglia, which link the CNS with other parts of the body. Most of the neurones in the peripheral nervous system are, therefore, either afferent…

The functional unit of the nervous system is the nerve cell or neurone. These cells are highly specialised for the encoding, conduction and transmission of information. Neuroglial cells, or glia, are present in the nervous system in even larger numbers…

The nervous system of all animals functions to detect changes in the internal and external environments and to bring about responses in muscles, organs and glands that are appropriate for the preservation of the individual and the propagation of the…

PULMONARY PHARMACOLOGY Pulmonary pharmacology concerns the effects of drugs on the lungs and understanding how drugs used to treat patients with pulmonary diseases work. Much of this pharmacology concerns drugs used to treat obstructive airway diseases, such as asthma and…

Plate 4-1 Open full size image CONGENITAL DEFORMITIES OF THE THORACIC CAGE PECTUS EXCAVATUM Pectus excavatum is also called funnel chest, chonechondrosternon, or trichterbrust. It is a deformity of the anterior chest wall characterized by depression of the lower sternum…

TESTS OF PULMONARY FUNCTION RADIOLOGIC EXAMINATION OF THE LUNGS Chest radiography remains the primary imaging modality for initial evaluation of patients with suspected chest disease and in many cases not only identifies abnormalities but also allows a specific determination of…

PULMONARY MECHANICS AND GAS EXCHANGE The major function of the lung is to deliver oxygen to and remove carbon dioxide from the blood as it passes through the pulmonary capillary bed. This function is achieved through a series of complex…