Thoracic independent volume

Thoracic independent volume

A term coined by Dr. Gerald Gause of the University of Florida College of Pharmacy, Thoracic Independent Volume is the volume of the thoracic cavity without the lungs. Another way of looking at it is TIV is the volume at which the thoracic cavity's elastic forces are at equilibrium independent of the lung's inward elastic forces.

This volume is approximately 70% of Total Lung Capacity, or 4060 mL in a typical healthy male of 70 kg. At any volume lower than TIV, the thoracic cavity wants to expand. At any volume higher, it wants to contract.

When taking into account the inward elastic forces of the lungs; above TIV, the forces work congruously (inward recoil of the lung, inward recoil of the thoracic cavity), below TIV, the forces work opposite (inward recoil of the lung, outward recoil of the thoracic cavity).

=See Also=


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Cardiac output — (Q or or CO ) is the volume of blood being pumped by the heart, in particular by a left or right ventricle in the time interval of one minute. CO may be measured in many ways, for example dm3/min (1 dm3 equals 1000 cm3 or 1 litre). Q is… …   Wikipedia

  • respiration, human — ▪ physiology Introduction       the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system  The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… …   Universalium

  • Pulmonary contusion — Classification and external resources A CT scan showing a pulmonary contusion (red arrow) accompanied by a rib fracture (blue arrow) ICD 10 S …   Wikipedia

  • nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

  • Tuberculosis treatment — Various pharmaceutical tuberculosis treatments their actions Tuberculosis treatment refers to the medical treatment of the infectious disease tuberculosis (TB). The standard short course treatment for TB is isoniazid, rifampicin (also known as… …   Wikipedia

  • mammal — mammallike, adj. /mam euhl/, n. any vertebrate of the class Mammalia, having the body more or less covered with hair, nourishing the young with milk from the mammary glands, and, with the exception of the egg laying monotremes, giving birth to… …   Universalium

  • Scoliosis — Classification and external resources ICD 10 M41 …   Wikipedia

  • skeleton — skeletonless, adj. skeletonlike, adj. /skel i tn/, n. 1. Anat., Zool. the bones of a human or an animal considered as a whole, together forming the framework of the body. 2. any of various structures forming a rigid framework in an invertebrate.… …   Universalium

  • Jarcho-Levin syndrome — is a rare, heritable axial skeleton growth disorder. It is characterized by widespread and sometimes severe malformations of the vertebral column and ribs, shortened thorax, and moderate to severe scoliosis and kyphosis. Individuals with Jarcho… …   Wikipedia

  • insect — insectival /in sek tuy veuhl/, adj. /in sekt/, n. 1. any animal of the class Insecta, comprising small, air breathing arthropods having the body divided into three parts (head, thorax, and abdomen), and having three pairs of legs and usually two… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”