Human endocrine system - The endocrine system and the human system | south-park-episodes.info
The hypothalamus plays a significant role in the endocrine system. maintaining your body's internal balance, which is known as homeostasis. The endocrine system plays an important role in homeostasis because hormones regulate the activity of body cells. The release of hormones into the blood is. The endocrine system provides an essential mechanism called homeostasis that integrates body activities and at the same time ensures that the composition of.
Considered both exocrine and endocrine gland. Produces estrogen and progesterone. Produce sperm cells and the hormones testosterone and androsterone. Stimulates growth of the long bones legs, arms, fingersincrease in muscle production and calcium retention.
- Endocrine System Glands and Hormones
- An Overview of the Hypothalamus
- Homeostasis and Regulation in the Human Body
Produced in the adrenal medulla. Increases heart rate and body reactions when under stress. Produced in the pancreas when blood sugar levels are high often after a meal.
Increases the permeability of cell membranes to glucose. Produced in the adrenal glands. Stimulates the liver to create glucose, regulates blood pressure, and insulin release as well as a number of other functions.Endocrine System, part 1 - Glands & Hormones: Crash Course A&P #23
Activates enzymes and directs them to carry out their normal functions, often synthesis of proteins. Contains iodine and regulates growth and metabolism. Increases blood sugar levels when they are low between meals by stimuating conversion of glycogen to glucose. Prepares the body to react quickly. A group of hormones including cortisol produced in the adrenal cortex that allow the body to adapt to stress. Another group of hormones created in the adrenal cortex.
Regulate water and electrolytes in the body. Produced by the thyroid. Helps decrease the breakdown of bone cells to decrease the amount of calcium in the blood. Produced in the parathyroid glands.
Increases the amount of calcium in the blood by increasing the breakdown of bone as well as retention of calcium in the kidneys and intestines.
What Is the Connection between the Endocrine System and Homeostasis?
The primary functions of the testes are to produce inhibin, sperm spermatogenesis and androgens, primarily testosterone. Hormones Hormones are powerful chemical messengers that our endocrine system uses to control various processes in our body. Hormones can be fat-soluble or water-soluble. Endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body.
This chemical changes inside the target cells and adjusts the rate at which a specific action happens, such as a contraction of the muscle. Hormones can have one target or several targets. Hormones are released when they get feedback from triggers. Some hormones work on specific cells while other hormones work throughout the body.
The level of hormones in the body are controlled by feedback. It is important that the amount of hormones in our body is kept at the right level. Although hormones come in contact with many cells in the body, they only react with target cells. A hormone can have more than one target cell, and can have different effects on different targets. Luteininzing Hormone This is a pituitary hormone that helps regulate the function of the reproductive organs.
In men it triggers the testes to produce male reproductive hormones. Prolactin This is a pituitary hormone that stimulates the production of milk in the breast. It is one of several hormones that stimulate milk production or lactation. Breast-feeding stimulates the pituitary gland to make more prolactin so that milk is made for as long as the baby breastfeeds. Oxytocin Oxytocin is a pituitary hormone that stimulates muscle contractions in the uterus during childbirth.
These contractions cause the release of more oxytocin. This is a positive feedback reaction that makes the cycle continue until the baby is born.
Oxytocin also stimulates the breasts to release milk when the baby feeds. Glucagon The hormone glucagon increases the level of sugar in the blood. It plays a vital part in maintaining the correct blood sugar level. It is made by the pancreas, a gland that is part of the endocrine system and the digestive system. The pancreas releases glucagon when the blood sugar level starts to fall. Glucogon makes cells release glucose, and helps convert glycogen, the form of glucose stored in the liver, back to glucose.
As a result the blood sugar level rises. Your blood has enough glucose to keep you alive for just 15 min. However, as glucose is used up, more is released to take its place. Reproductive Hormones Reproductive hormones control the reproductive development of boys and girls.
The development of primary and secondary characteristics and regulate all reproductive related processes such as sperm and egg production. Primary reproductive characteristics are the development of the major reproductive organs.
There are 3 main types of reproductive hormones—androgens, estrogen, and progesterone. Female Reproductive Hormone Estrogen is the female hormone made mainly in the ovaries. It not only makes the girl reproductive organs develop, and controls her monthly menstrual cycle. Progesterone is the female hormone that prepares the girls uterus for pregnancy every month. Some contraceptive pills have estrogen in them to prevent the ovaries from releasing their egg cells. Male Reproductive Hormone The male reproductive system consists of the penis, scrotum, and the 2 testes.
A male reproductive system creates sperm cells that combined with a female egg to create a new human life. The testes and scrotum hang outside the body where it is cooler because it improves sperm production.
Sperm cells look like microscopic tadpoles. Sperm is made in the testes, which are inside the scrotum. Sperm cells leave the testes through epididymis. The epididymis connects to the vas deferens. Glands called seminal vesicles lie along the vas deferens and add fluids and nutrients to the sperm.
These are just two of the effects of epinephrine, also called adrenaline. Epinephrine is a very fast acting hormone that prepares our body for emergency action—also called the fight or flight reflex.
Homeostasis and Regulation in the Human Body ‹ OpenCurriculum
It speeds up our breathing and heart rate and diverts extra blood to the muscles. At the same time it slows down digestion and makes the liver release glucose into the bloodstream so more fuel is available for the muscles to contract. Insulin Insulin is a hormone that reduces the level of sugar in our blood.
Insulin is a protein made by the pancreas. It is released when the blood sugar level rises and reduces the sugar in 2 ways. First it makes insulin take up the glucose. Insulin and glucagon have opposite effects.
Together they form a negative feedback system that keep sugar levels within set limits. In people with diabetes this control system does not work properly and they made may need daily injections of insulin to keep their blood glucose levels within safe limits. It also increases the blood glucose level. If your body has too little growth hormone, the body fails to grow normally. Too much growth hormone can cause the body to grow more than usual.
Thyroid-stimulating Hormone The thyroid stimulating hormone makes the thyroid gland produce thyroid hormones. Adrenocorticotrophic Hormone This hormone stimulates the adrenal glands to produce other hormones. Antidiuretic Hormone This pituitary hormone increases the amount of water in the blood. A diuretic is a substance that stimulates the body to produce urine by taking water out of the blood stream. The antidiuretic hormone or vasopressin, have the opposite effect.
It increases the amount of water that the kidneys return to the blood and makes arterioles constrict.