Endocrine glands secrete chemical messengers called\n(A)hormones\n(B)neurons\n(C)enzymes\n(D)bile\n\nWhat would be the answer.
130423
Hormones. These are the chemical messengers released from endocrine glands. These glands are called endocrine because they do not have any ducts i.e. these are ductless glands. Neurons are nerve cells, enzymes are proteins that are released from ducted glands of which bile is an example.
647899
A) Glucose is what is known as a "reducing sugar" and can be identified by several chemical means, however you could also use an enzymatic method with a colored end product such as glucose oxidase.\n\nB) Luteinizing hormone, produced in the pituitary gland, regulates the synthesis of testosterone in the Leydig cells of the testis, it also plays an important role in the regulation of egg development and maturation in the ovaries.\n\nChemical elements? Do you mean carbon, oxygen, hydrogen, these are present in most organic compounds.\n\nIn passive immunity, you are provided with antibodies that are ready to attack an immune insult, so there is none of the lag time associated with producing the antibodies.\n\nThat's enough for now, study harder for your test!
478098
Just an overview.\nthere are nerves that are attached to the muscles.\nSome also are controlled by hormones. The nervous system signals to the glands to secrete hormones. \n\nJust remember that the nervous system has major divisions: the central nervous system (brain and spinal cord), autonomic nervous system (sympathetic and parasympathetic), peripheral nervous student (nerves). Those nerves are all spread out through our body. Always remember that those divisions of the nervous system communicate with each other.\n\nYou must really read books to know. I can't place all the details here.
363705
The liver has more than one role in the digestive system. I guess you could say that the liver comes first since it is responsible for the production of bile, which then stored in the gall bladder and secreted into the small intestine. Bile serves to emulsify fats.\n\nThe small intestine digests AND absorbs. The walls of the small intestine secrete digestive juices which break down carbohydrates into simple sugars, proteins into amino acids, and fats into their constituent fatty acids and glycerol. It also works with pancreatic juice - intestinal juice consists of enterokinase, which converts inactive trypsinogen in the pancreatic juice to the active form, trypsin, which causes the hydrolysis of proteins.\n\nThese simpler substances are then absorbed by the intestinal walls into blood capillaries, or the lacteal for fatty acids. The blood capillaries converge to form a hepatic portal vein, carrying the nutrients to the liver, where further metabolism of substances can occur.
506656
I'm not positive, but I suspect it is similar to how most animals synthesize fluids: They have special glands that create the ink from fluids within their system that is collected from food they eat. It is likely a similar process to how a kidney filters toxins from the blood to make urine or how a snake makes venom by synthesizing proteins from nutrients from their food. Our bodies create bile, saliva, and a host of other fluids in the same way - they are generated by glands extracting the necessary components from our blood.
553965
Saliva; salivary glands; mastication; tongue; chyme; bolus; esophagus; peristalsis; smooth muscle; epiglottis; cardiac sphincter; stomach; fundus; hydrochloric acid; pepsin; pyloric sphincter; duodenum; bile; gall bladder; bile duct; pancreas; amylase; jejunum; absorption; mesentary; ileum; colon; apendix, cecum, rectum, anus.
428044
Try the word "gland" for hormone organ, and then generalised fits.
284302
Well, my boyfriend is the health teacher in our building and let me tell you that kids have no idea about health.\n\nFor example, here is what one student said after a semester of male anatomy, they called the pituitary gland the testicles.  In one way she was right that some guys do think with their "lower brain."\n\nMany of my students do not know about the anatomy and the effects of drugs/alcohol.  Do you want the future generation to think that the pituitary gland is really the testicles?  I know I don't.
637232
The heart produces two hormones: atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP).  Therefore, it is considered by some to be part of the endocrine system.  Is this what you mean?  I found one article which I attached; you can do a search on "endocrine heart" for further information.
246087
The pituitary gland secretes hormones regulating a wide variety of bodily activities, including trophic hormones that stimulate other endocrine glands.
346872
Think of the golgi apparatus as a UPS distributing center.  The golgi packages and sends certain proteins and hormones for distribution to other cells.
91399
Digestive System Organs\n\nEsophagus- A simple conduit between the mouth & stomach.\nStomach- Where the enzymatic digestion of proteins initiated and foods are reducted to liquid form.\nLiver- It's major role is to provide bile salts to the small intestine, which are critical for digestion & absorption of fats.\nPancreas- Important roles as both and endocrine & exocrine organ- provides a potent mixture of digestive ezymes to the small intestine which are critical for digestion of fats, carbs and protein.\nSmall Intestine- Where the final stages of chemical enzymatic digestion occur & where almost all nutrients are absorbed.\nLarge Intestine- Major differences among species in extent & importance - in all animals water is absorbed, bacterial fermentation takes place and feces are formed. In carnivores, that's about the extent of it, but in herbivores; like the horse, the large intestine is huge and of critical importance for utilization of cellulose.\n\nEXCRETORY ORGANS\n\nLUNGS- Diffuses carbon dioxide from the blood, into the lung tissue, and then leaves the body everytime we exhale.\nLIVER- The largest internal organ in our bodies. Its numerous functions make it part of the circulatory, digestive, and excretory systems. Some proteins & other nitrogenous compounds are broken down in the liver by a process called deamination. The liver produces bile, which is temporarily stored in the gall bladder before being released into the small intestine where it helps break down lipid molecules. The liver removes & breaks down old red blood cells. It is also responsible for maintaining normal levels of glucose in the blood. The liver is ALSO responsible for removing potentially hazardous chemicals from the blood. It "detoxifies" the blood.\nSKIN- Sweat comes out of pores in your skin. Sweat is a mixture of 3 metabolic wastes: water, salts, & urea. So as you sweat, your body accomplishes 2 things: sweating has a cooling effect on the body, and metabolic wastes are excreted.\nKIDNEYS- they filter the blood. The kidneys help filter the blood.\n\nRESPIRATORY \n\nNose & Nasal Cavity- airway, moistens & warms air, filters air, resonating chamber for speech, houses smell receptors.\n\nPharynx (throat)- connects nasal cavity to oral cavity & larynx & esophagus. Is a common path for air and food.\n\nLarynx (voice box)- Provides an open airway. Routes food to the esophagus & air to trachea.\n\nTrachea (windpipe)- Descends from larynx & divides into the 2 primary bronchi. Is mobile; stretches, recoils, moves side to side. \n\nLungs- are the collective arrangement of the respiratory zone.
302253
I think you're talking about Feed back inhibition. In this process, the end product inhibits the reactants or the catalyst when the end product level is high thus putting a stop to further production and waste of energy.\n\nEg: when there's sufficient amt of Thyroxin, thyroxine blocks the activity of pituitary as pituitary secretes a hormone that stimulates the thyroid gland to produce thyroxine.
553069
Part on the endoctrine system, the pituitary gland is divided into 2 sections: anterior and posterior.\n\nPosterior pituitary secretes 2 hormones: oxytocin (released during labor in women) and ADH (anti-diuretic hormone- released to increase sodium reabsorption when the body is dehydrated, low blood pressure, or in other cases when the body needs more water.)\n\nAnterior pituitary secretes many more hormones throughout your body, but the main ones are:\n\nFSH (follicle-stimulating hormone)\nLH (luteinizing hormone)\nACH (adrenocorticotropic hormone)\nTSH (thyroid-stimulating hormone)\nProlactin\nEndorphins (which make you happy)\n& GH (growth hormone)\n\nA mnemonic to remember is: FLAT PEG\n\nHope this helps you some!
429410
All glands have special roles to play in a body, otherwise they won't be there.  Adrenal glands are no exception as their functions are linked with the heart!  For more information, consult a book on Human Body!
45186
The liver puts some compounds into the bile, which is dumped into the gut and excreted in the stool.\n\nThe lungs exhale things that can go into gas phase from the blood stream into the alveoli--like the sulfenic acid derivatives that make garlic and onions cause your breath to smell wretched.\n\nSkin does its excretion by putting material into your sweat.\n\nNote that the liver, the kidneys, the skin and even body fat also metabolically modify things (chemically alter them), which not only deactivates them (or in some cases, activates them) but also makes them more easily excreted by the liver or the kidney, which are the primary systems that get rid of such things.\n\nThat help?
450492
D is FOR SURE the answer.\n\nThe hypothalamus is the center of the central nervous system. It produces releases releasing and inhibiting hormones, then through the portal veins sends those releasing and inhibiting hormones to the anterior pituitary to release the other hormones such as GH, Prolactin, ACTH, TSH. If you have any questions, email me personally.