18 Questions
Which region of the hindgut in insects is referred to as the small intestine?
Ileum
What is the main function of the hindgut in insects?
Reabsorption of salts and water
What is the circulatory fluid in insects that freely flows through the body cavity called?
Hemolymph
Which part of the hindgut in insects acts as a fermentation chamber in scarabid and termite larvae?
Ileum
Which insect organ system has an open circulatory system where hemolymph directly irrigates tissues and organs?
Circulatory system
Which insect organ secretes watery saliva with an amylase and maltase mix during feeding?
Salivary glands
What is the function of gills in aquatic insects?
To exchange gases through the body surface
Which of the following is an example of an insect with rectal gills?
Dragonfly naiad
What acts as a physical gill in aquatic insects like water bugs?
Air bubble stored beneath wings
Which part of the insect's body holds a thin film of air indefinitely?
Plastron with hydrofuge hairs
What are the two projections of a nerve cell in insects?
Axon and dendrites
Which nervous system part in insects connects to effecter organs like muscles?
Central nervous system
Where is the dorsal vessel situated in insects?
In the dorsal sinus
What is the main function of the dorsal vessel in insects?
Transport haemolymph to the head
What is the role of ostia in the insect heart?
Expanding and contracting to facilitate flow
Which part of the insect circulatory system is responsible for receiving blood through ostia?
Dorsal vessel
What is the anterior prolongation of the dorsal vessel that transports haemolymph to the head called?
Aorta
Which longitudinal compartment is known as the Perineural sinus in insects?
Ventral sinus
Learn about the components of the circulatory system, including dorsal diaphragm, ventral diaphragm, dorsal sinus, visceral sinus, ventral sinus, and the dorsal vessel. Understand their roles and locations in the body cavity.
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