dashllka.blogg.se - Calculate anatomical dead space

Produced by Type II alveolar epithelial cells.DPPC is amphipathic (charged choline head, hydrophobic.Surfactant is mainly phospholipid (dipalmitoyl phosphatidylcholine DPPC), some protein and carbohydrate.T - surface tension along the surface of the sphere.

P - distending pressure within the lumen of a sphere.

Laplace's Law: P = 4 x T / r (for a sphere).Surfactant dramatically reduces surface tension.High surface tension of liquid lining the alveoli tends to collapse them.Separates abdominal and thoracic contents.Peripheral afferents from intercostal and subcostal nerves.Efferent and central afferent: phrenic nerve (C3-5).Back attaches to T12 vertebral body, descents to L1/L2 on sides.Front arises from xiphoid process, costal margins.3 Openings: Aorta (T12), oesophagus (T10) and vena caval (T8).

Muscle fibres arise from peripheral attachment to form central tendon →Ĭrest of diaphrgam (thin but strong aponeurosis).

C- shaped structure of muscle and fibrous tissues.

Dome shaped muscle that inserts into the lower ribs.

Perfusion vs Diffusion Limited Gas Transfer.

Time Dependence of Pulmonary Elastic Behaviour.