What are endocrine glands class 10

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Endocrine Disorders And Glands The Endocrine system is a powerful network of various glands. They have a great impact on other organ systems and their functions. The chemicals secreted by endocrine glands called hormones. Hormones can manipulate or change various cell activities in such a way that they can make us as tall as a tree and as short as a herb. Hence, hormone level needs to maintain at equilibrium. Endocrine Glands and Disorders “Too much of anything and too little of anything are always dangerous”. The term the hormone imbalance also explains the same.In the case of Dwarfism Growth hormone secreted by the pituitary gland is responsible for dwarfism or shortness. When pituitary produces an insufficient amount of growth hormone, it retards the height of an individual. Acromegaly Acromegaly is also known as gigantism. It is also a growth hormone-related disorder. In contrast to dwarfism, gigantism is the outcome of the excess secretion of growth hormone by the pituitary. Endocrine Glands: Dwarfism Vs Gigantism Cretinism It is an endocrine disorder caused due to deficiency of thyroid hormones. Cretinism is a type of hypothyroidism that occurs in infants or kids. It leads to mental and physical growth impairment. Goitre When the level of thyroid hormone is too high in blood, it shows symptoms like excess sweating, weight loss, etc. It also leads to the amplification (swelling) of the thyroid gland. This condition is known as goiter. It is either due to iodine de...

The Endocrine System • The • Endocrine glands secrete chemicals called hormones into the bloodstream. Blood then transports the hormones to target organs, where they cause an effect. • Endocrine glands are found in many parts of the body and together make up the endocrine system. Endocrine Glands These are ductless glands, which form a group of tissues or cells, acting at distant sites of the body known as target organs or target cells. • Adrenal • Pancreas • Thyroid • Pituitary • Parathyroid • Thymus • Gonads Adrenal Glands Adrenaline hormone is secreted from Adrenal Gland directly into the blood and is carried to different parts of the body. It acts on target organs or specific tissues like the heart. It prepares the body for rapid action in stressful situations. It increases heart beat accompanied by an increase in blood pressure. It increases blood supply to the muscles while decreasing it to skin and visceral organs. Pituitary Gland • The pituitary gland in the brain is often referred to as a master gland. • It secretes several hormones, some of which Hypothalamus plays an important role in the release of many hormones. When the growth hormone level is low, hypothalamus releases growth hormone releasing factor which stimulates the pituitary gland to release growth hormone. Pancreas Pancreas is both a duct gland as well as a ductless gland. As a duct gland, its secretion (pancreatic juice) is poured into the duodenum for digestion. As a ductless gland, it has special g...

Endocrine Glands Exocrine Glands 1. They do not have ducts. 1. They have ducts. 2. The glands pour the secretion directly into the blood. 2. They pour their secretion to the target either directly o r through ducts. 3. Their secretion consists of hormones or some molecules 3. Their secretion can consist of enzymes , ions, water and other substances. 4. For example, the pituitary gland, Hypothalamus. 4.For example, salivary glands, sweat glands.

Let us learn about endocrine glands, hormones secreted by endocrine glands and their functions in detail. In animals, the message, communicated in the form of nerve impulses, from receptors (sensory neurons) to the central nervous system and from the latter to the effectors (muscles and glands) is very quick. But cells cannot continuously generate and transmit nerve impulses. They take some time to reset their mechanisms before a new impulse is generated and transmitted. So most multicellular organisms use another means of communication between cells, commonly termed � chemical communication�. The stimulated cells release a chemical directly into the blood. Other body tissue cells detect this chemical using special molecules (receptors) present either on their surfaces or inside their cytoplasm. The message is then transmitted and these chemicals produce their effects. Example: Squirrel has to prepare for either fighting on running away when they are in a scary situation. This requires wide-ranging changes. A chemical signal reaches all cells of the body and provides wide-ranging changes. These chemicals are called hormones which are the secretion of endocrine glands. What are the endocrine glands? The glands that lack ducts and pass their secretions into the surrounding blood for transport to the site of action are called ductless or endocrine glands. Their secretions are known as hormones. Hormones are chemical messengers that regulate the biological processes in the liv...

Question 1 What are hormones? Question 2 What is a target organ? Question 3 Define gland? Question 4 What are endocrine glands. Give example? Question 5 What are exocrine glands. Give example? Question 6 Write the functions of adrenal gland? Question 7 Why adrenal gland is called as emergency hormone? Question 8 What are the functions of thyroid gland? Question 9 What are the functions of pituitary gland? Question 10 Name the hormones secreted by pancreas? Contents • 1 Hormones in Animals • 2 Types of Glands • 2.1 1) Endocrine • 2.2 2) Exocrine • 2.3 Adrenaline Gland or Adrenal • 2.3.1 Function of Adrenaline Gland or Adrenal • 2.4 Thyroid Gland • 2.4.1 Function of Thyroid Gland • 2.5 Pituitary Gland • 3 Pancreas • 3.1 (1) Insulin • 3.2 (2) Glucagon Hormones in Animals Hormones are chemical secreted by endocrine gland in one part of the body and are carried by blood to another part where they stimulate or inhibit specific physiological process. The cells of endocrine glands release hormones into the blood stream. The blood carries them from the site of production to site of action. These hormones act as on specific organs called target organ. The target cell has on it surface or cytoplasm, a specific protein molecule called receptor. The receptor can recognise and pick out the specific hormone capable of acting in cell. Gland : A cell, a tissue or an organ which secrete useful chemical compounds required for particular function. Types of Glands 1) Endocrine Those glands whi...