Structure and Function of Living Organisms | Biology A SELLER BEST
Ideal for FURTHER EDUCATION
A. Clifton Spirometer
A wedge-type spirometer suitable for simple experiments on investigating tidal volumes and breathing rate, or for more advanced use in measuring respiratory rate, pulmonary ventilation, reserve volumes and vital capacity. Oxygen consumption can also be measured.
The tank is a one piece stainless steel pressing housed in a durable painted outer case. The float is constructed from lightweight plastic. The float is calibrated 0 to 7 x 0.5 litres and has a metal counterpoise. The pen arm corresponds to approximately 0.5 litres. The two corrugated breathing hoses 0.8m long are provided with two mouthpieces and a nose clip. A simple lever control enables the subject to be connected either to atmosphere or to the float for recording. A container for soda lime crystals is fitted that can be used to absorb carbon dioxide. Internal Diameter = 19mm, External Diameter = 21mm, External Dimensions - W720 x D320 x H239mm.
Direct Delivery - up to 6 weeks. E8L31860
£1,240.47 B. Lung Demo Model in a Bell Jar
This simple model demonstrates the functioning of lungs for students. It depicts how the lungs are emptied and filled with air by the relaxation and contraction of the diaphragm muscle. Two balloons attached to a Y-tube simulate the lungs. The chest cavity is a bell jar with open top and stout latex
rubber sheet that acts as the diaphragm. The diaphragm is pulled downward and atmospheric pressure is lowered inside the chamber, causing the lungs to expand and take in air. When the diaphragm is released, the lungs deflate.
E8R06015 £42.08
Spare Diaphragm For Lung Demo Model E8R09514
£6.36
B
SPARES & ACCESSORIES
Soda Lime for Spirometers
note that due to the nature of the material, fine particles may be produced during transport and storage. These must be removed before use.
Direct Delivery - up to 3 weeks. E8L12476 500g Five hundred grams £12.60 Crystals suitable for use in spirometers. Please