Book Lungs Is Called

The lungs are organs of the respiratory system that allow us to take in and expel air.

Book lungs is called. Spiracles are usually found on certain thoracic and abdominal segments. The lungs are a pair of spongy air filled organs located on either side of the chest thorax. In the primitive spiders such as the mesothelae there are two pairs of book lungs.

Book lung of garden spider under the microscope 100x. A book lung is a type of respiration organ used for atmospheric gas exchange that is present in many arachnids such as scorpions and spiders each of these organs is located inside an open ventral abdominal air filled cavity atrium and connects with the surroundings through a small opening for the purpose of respiration. Carbon dioxide produced by cellular respiration is in turn released through exhalation.

In the breathing process the lungs take in oxygen from the air through inhalation. Well most spiders breathe through organs called book lungs. Diagram of book lungs.

Respiratory openings on the abdomen called spiracles lead to the so called book lungs named for their layered structure or a system of tubes tracheae for carrying air or both. Spiracle in arthropods the small external opening of a trachea respiratory tube or a book lung breathing organ with thin folds of membrane resembling book leaves. 1 is the slit to outside of the body 2 is the area filled with hemolymph and 3 is the book lung pages or membranes the book lungs located inside the arachnid are made up.

The lungs are also closely associated with the cardiovascular system as they are the sites for gas exchange between the air and the blood. The trachea windpipe conducts inhaled air into the lungs through its tubular branches called bronchi.