What is glands, Biology

Assignment Help:

What is Glands?

The central nervous system controls much of the endocrine system through the hypothalamus. The hypothalamus directs many of the body's functions through the "master endocrine gland," the pituitary gland, which in turn is able to control other endocrine glands by secreting hormones such as GH (growth hormone) and TH (thyroid-stimulating hormone). The pituitary also secretes LH (luteinizing hormone) and FSH(follicle stimulating hormone), which affect the follicles and ovaries throughout the menstrual cycle. The thyroid stimulates metabolism, and regulates blood calcium and phosphate levels, along with the parathyroid glands. The adrenal glands, located by the kidneys, secrete epinephrine (adrenaline) and norepinephrine in response to threat or danger, regulate body fluid levels, control gluconeogenesis (glucose and glycogen synthesis) in the liver, and produce sex hormones.

Insulin is a well-known hormone that is produced by the cells named Islets of Langerhans in the pancreas. Insulin triggers the absorption of glucose by cells from the bloodstream. If there is a lack of enough insulin being produced, or if there is a low number of insulin receptors, the disease known as diabetes. Another hormone produced in the pancreas is glucagon. Glucagon is a hormone that signals the liver to release stored glucose whenever the glucose, or blood sugar, levels get too low.

The gonads are the sex organs. The ovaries in females secrete estrogen and progesterone, and the testes in males produce testosterone. They are discussed further in the section on the reproductive system. The pineal and thymus glands are secondary endocrine glands, respectively producing melatonin and thymosin.

 


Related Discussions:- What is glands

Define arthropod by basic morphology - germ layers, Q. Arthropod identity c...

Q. Arthropod identity card. How are arthropods characterized according to examples of representing beings, basic morphology, type of symmetry, germ layers and coelom, digestive sys

How to defibrillate, How to Defibrillate? Three shocks should be given...

How to Defibrillate? Three shocks should be given initially in a 200J - 200J - 360J sequence. For most recoverable situations, 200J would be adequate and results in least myco

Locomotion in annelida, Locomotion in Annelida Before we discuss the ...

Locomotion in Annelida Before we discuss the details of locomotion in annelids, we have to recapitulate the major subdivisions of the phylum Annelida. Phylum Annelida contain

Explain the sedimentation - air sampling, Explain the Sedimentation - Air S...

Explain the Sedimentation - Air Sampling? It is the simplest method, which involves exposing agar plates in air for specified time at a location to be sampled.  Microorganisms

Define chromium toxicity, Define Chromium Toxicity? Trivalent chromium,...

Define Chromium Toxicity? Trivalent chromium, the form of chromium found in foods and supplements, is least toxic. Oral supplements upto 800 to 1000 mcg per day appear to be sa

Solubility, Solubility You are aware that gases are soluble in liquid...

Solubility You are aware that gases are soluble in liquid. Solubility of a gas in a liquid depends on the partial pressure, temperature and presence of other solutes. Table

How does phosphocreatine act in the muscle contraction, How does phosphocre...

How does phosphocreatine act in the muscle contraction and relaxation? Phosphocreatine is the main means of energy storage of the muscle cells. During relaxed periods ATP mo

Biota of estuaries, Biota of Estuaries The estuarine community is a m...

Biota of Estuaries The estuarine community is a mixture of three components: Marine Fresh water and Brackish water but overall estuarine div

Phylum cnidaria (coelenterata ), PHYLUM  CNIDARIA (= COELENTERATA )       ...

PHYLUM  CNIDARIA (= COELENTERATA )         Definition and Introduction Tissue  grade eumetazoans with  a radial  symmetry .The  term  coelenterate  signifies the  presence

What are the preservation of insulin, What are the Preservation of Insulin ...

What are the Preservation of Insulin Regular insulin is stable for 18 months at 23.8 0 C and Lente insulin are stable for 24 months at this temperature. Although refrigeration

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd