What are neurosecretory cells in insects?

The neurosecretory cells are responsible in insects for the coordination and control of bodily functions such as feeding, metabolism, excretion, reproduction, and development. They do this by releasing substances called neurohormones into the body fluids.

Which of the following insect order is wingless?

Apterygota
an Order of insects within the Apterygota (wingless insects). the Order Neuroptera are primitive insects. The Order contains about 4,000 species. Insects in the Order are known by a variety of names including Lacewings, Antlions and Mantidflies.

Which of the following statements is true about the Holometabolous insects?

Which of the following statements is true about the holometabolous insects? Sol: (a) These insects undergo complete metamorphosis.

Where is ecdysone produced?

insect prothoracic glands
Ecdysone is synthesized in insect prothoracic glands and crustacean Y-organs, secreted to hemolymph, and oxidized to 20E in peripheral tissues such as the fat body.

Where are neurosecretory cells located?

Neurosecretory cells, found in clusters in the medial and lateral parts of the brain, control corpora allata activity by producing juvenile hormone during the larval or nymphal instars, the phase between periods of molting in insects.

What exactly are neurosecretory cells where exactly are they found?

What are neurosecretory cells? Where exactly are they found? Neurosecretory cells are found in the hypothalamus, but their axons and axon terminals travel to the anterior pituitary. They secrete RH’s and IH’s that travel to the posterior pituitary.

What are wingless insects called?

apterygote, broadly, any of the primitive wingless insects, distinct from the pterygotes, or winged insects.

What is a wingless?

Definition of wingless : having no wings or very rudimentary wings.

What is holometabolous development in insects?

Complete, or holometabolous, metamorphosis is characteristic of beetles, butterflies and moths, flies, and wasps. Their life cycle includes four stages: egg, larva (q.v.), pupa (q.v.), and adult. The larva differs greatly from the adult. It is wingless, and its form and habits are suited for growth and…

What do you mean by ametabolous and holometabolous insects?

The key difference between ametabolous and hemimetabolous is that ametabolous refers to insect development in which there is no metamorphosis while hemimetabolous refers to insect development in which there is incomplete or partial metamorphosis.

What is ecdysone function?

Ecdysone is the major steroid hormone in insects and plays essential roles in coordinating developmental transitions such as larval molting and metamorphosis through its active metabolite 20-hydroxyecdysone (20E).

What is the function of corpora Allata?

In insect physiology and anatomy, the corpus allatum (plural: corpora allata) is an endocrine gland that generates juvenile hormone; as such, it plays a crucial role in metamorphosis.