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The larvae have silk glands which are located on the labium. These glands are modified salivary glands. They use these silk glands to make silk for cocoons and shelters. [21] Located below the labrum are the mandibles. [64] On each side of the head there are usually six stemmata just above the mandibles. These stemmata are arranged in a semicircle.
The two parotid glands are major salivary glands wrapped around the mandibular ramus in humans. [6] These are largest of the salivary glands, secreting saliva to facilitate mastication and swallowing, and amylase to begin the digestion of starches. [7] It is the serous type of gland which secretes alpha-amylase (also known as ptyalin). [8]
Another advantage of cockroach gels is that they are relatively safe for use around children and pets. The gel is contained in a bait station or applicator, which helps to prevent accidental ingestion by humans or animals. Additionally, the active ingredients in cockroach gels are typically less toxic than those used in other types of roach bait.
Vampire bats and Eulipotyphla are the only mammals so far observed to produce toxic saliva. These species have significantly enlarged and granular submaxillary salivary glands from which the toxic saliva is produced. [12] The Cuban solenodon (Atopogale cubana) and Hispaniolan solenodon (Solenodon paradoxus) look similar to large shrews.
Saliva on a baby's lips. Saliva (commonly referred to as spit or drool) is an extracellular fluid produced and secreted by salivary glands in the mouth.In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be extracted), enzymes (such as lipase and amylase), and antimicrobial agents (such as secretory IgA, and lysozymes).
Venom glands are a wide variety of salivary glands in insects and reptiles modified to produce venom and store it without harm to the organism itself. [ 1 ] [ 2 ] Details
There can hardly be any doubt (although it has not been proven) that ectohormones of the salivary gland secretions play the main role in this redifferentiation." – Albrecht Bethe[6] Bethe further divided the ectohormones into homoiohormones, which – according to today's definition of a pheromone – act on individuals of the same species ...
The parotoid gland (alternatively, paratoid gland) is an external skin gland on the back, neck, and shoulder of some frogs (especially toads), and salamanders. It can secrete a number of milky alkaloid substances (depending on the species) known collectively as bufotoxins , which act as neurotoxins to deter predation .