What is book lungs?
Book lung, form of respiratory organ found in certain air-breathing arachnid arthropods (scorpions and some spiders). Each book lung consists of a series of thin plates that are highly vascular (i.e., richly supplied with blood) and are arranged in relation to each other like the pages of a book.
Are book lungs gills?
Although they have a similar book-like structure, book gills are external, while book lungs are internal. Book gills are flap-like appendages that effect gas exchange within water and seem to have their origin as modified legs.
Why are they called book lungs?
Book lungs are the main respiratory organ in most arachnids (spiders and scorpions). Book lungs are within small openings in the abdomen of the arachnid. Book lungs get their name from the fact that the stacked plates have the appearance of the closed pages of a book.
What are book gills and book lungs?
Book gills and book lungs are the types of respiratory organs that are present in insects or arthropods. There are some lamellae that are present in these structures. These lamellae are then arranged in the form of a book and so they are called the book lungs or the book gills.
Do insects have book lungs?
Insects, however, got triple-whammied in this department because of the way they breathe. While crustaceans breathe via gills and spiders use gill-like structures called book lungs, insects employ a different system. They get oxygen through tubes called tracheae.
Does cockroach have book lungs?
The tracheal tubes mainly inject oxygen directly into the tissues of the animals in the respiratory system of insects. The spiracles can be easily opened and closed to reduce the loss of water. Therefore, the cockroach’s respiratory organs are spiracles. Thus, the option (D) is the correct choice.
Does a spider have lungs?
Spiders (Araneae) are unique regarding their respiratory system: they are the only animal group that breathe simultaneously with lungs and tracheae. Looking at the physiology of respiration the existence of tracheae plays an important role in spiders with a well-developed tracheal system.
Which is respiratory organ of cockroach?
trachea
Cockroaches can hold their breath for up to seven minutes. Their respiratory system is highly efficient but there are no lungs. Instead, the insects draw in air through external valves called spiracles and transport the air directly to the cells via tubes called trachea.
Can spiders run out of oxygen?
The movement of a spider provides the necessary energy for air to be pushed in and out of the book lungs or trachea. However, spiders require less oxygen than people do. Therefore they can go hours to even days without breathing. They are very resilient creatures, so don’t underestimate the survival rate of spiders.
What are spiracles Class 5?
Spiracles are openings or tiny pores on the surface of some animals, which usually lead to respiratory systems. When air through external openings, enters into its respiratory system, spiracles serve as muscular valves paving the way to the internal respiratory system.
What is the meaning of the book lung?
book lung(Noun) A lamellate respiratory organ found in arachnids. Freebase(0.00 / 0 votes)Rate this definition: A book lung is a type of respiration organ used for atmospheric gas exchange, found in arachnids, such as scorpions and spiders.
Where are book lungs and book gills found?
A book lung is a type of respiration organ used for atmospheric gas exchange and is found in arachnids, such as scorpions and spiders. Each of these organs is found inside a ventral abdominal cavity and connects with the surroundings through a small opening.
Where is the book lung located in a spider?
A book lung is a type of respiration organ used for atmospheric gas exchange that is found in many arachnids, such as scorpions and spiders. Each of these organs is found inside an open ventral abdominal, air-filled cavity (atrium) and connects with the surroundings through a small opening for the purpose of respiration.
Where does gas exchange occur in the book lungs?
The ‘pages’ provide ample surface area for gas exchange to occur. The book lungs are surrounded by spider blood, which is hemolymph. When air enters the spider (through openings on the spider’s abdomen), it comes into contact with the book lungs and hemolymph and gas exchange occurs.
Where are the book lungs located in the body?
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 . Book lungs are not related to the lungs of modern land-dwelling vertebrates. Their name describes their structure.
How are the plates of the book lung arranged?
Each book lung consists of a series of thin plates that are highly vascular (i.e., richly supplied with blood) and are arranged in relation to each other like the pages of a book.
What kind of animal has a book lung?
Alternative Title: book trachea. Book lung, form of respiratory organ found in certain air-breathing arachnid arthropods (scorpions and some spiders). Each book lung consists of a series of thin plates that are highly vascular (i.e., richly supplied with blood) and are arranged in relation to each other like the pages of a book.
Where are the book lungs located in the arachnid?
The book lungs, located inside the arachnid, are made up of several thin membranes (somewhere between 10 and 80, depending the species). Some have a pair of book lungs, others have several pairs. The book lungs are surround by hemolymph, which is the equivalent to our blood, in that it carries oxygen.
