Homeostatic control mechanism involved only with the nervous system and not the endocrine system????
924685
Reflexes are pure nerve’s response! If you touch a flame with a finger you’ll immediately put it away as the result of just your nervous system response keeping homeostasis of your hand
610732
Animals capable of temperature regulation within a given range are deemed homeotherms (alternatively homiotherms or homotherms). They have the ability to regulate temperature via negative feedback control.\nTemperature is controlled in a variety of ways in these animals.\nThe hypothalamus acts as a receptor in regulation, by detecting fluctuations in temperature. These receptors are better known as thermoreceptors.\nSkin also possesses thermoreceptors which can detect the temperature of the external environment. This information is relayed to the hypothalamus which can in turn transmit nerve pulses for corrective mechanisms to occur.\nIncreased sweating is a corrective response aimed to reduce the temperature of the organism.\nVasodilation is a corrective response where the blood vessels close to the skin surface become more dilated, meaning their is a larger surface area for heat to be lost of the external environment from the blood vessel carrying over-heated blood.\nVasoconstriction is the opposite of this and occurs when temperatures in an organism drop. The blood vessels become constricted so that minimal heat loss occurs.\nThe hairs on your body also play an important role in temperature regulation. A corrective response can occur where the hairs 'stand on end', and trap a layer of air between the hair and the skin. This insulation of warmer air next to the skin reduces heat lost, while a thin layer of insulation would increase heat loss.\nOther corrective mechanisms are involved, such as a drop in metabolic rate and shivering when temperatures drop.
1184322
temperature (you are never cold or hot)\nblood pressure\nheart rate\nrespiratory rate\nthyroid function\npotassium, calcium, in fact most minerals in you\nwater excretion\nred blood cell count\nglucose levels\nserum pH\noxygen carbon dioxide\n\n\nhttp://en.wikipedia.org/wiki/Homeostasis
786711
Your brain is divided into six major divisions:  the cerebrum, the diencephalon (where the hypothalamus is located), the mid brain, the cerebellum, the pons and the medulla oblongata.  \n\nThe hypothalamus is the center for homeostasis and controls things like hunger, thirst, maintaining body temperature and the control of some reproductive system functions.\n\nThe medulla oblongata is where the spinal cord transitions into the brain.  It is part of the brain stem.  It's job is the control of non-voluntary functions and it also brings sensory information into the brain and helps the cerebral cortex relay information to the spinal cord.\n\nHope this helps...
923756
They both maintain homestasis, but the big difference is time. Endocrine - slow, long term effects. Nervous system - fast, short lived effects.
937434
The endocrine system is the collection of organs and tissues that make hormones.  The hormones themselves control many things throughout your body, from development to emotional states to simple digestion.  As chemicals which circulate though your blood, they are considered to be 'fast' signals, though not as fast as nerve signals and the like.  Hormones are also never stored in your body... just made quickly as they're needed and used quickly.
214510
I got this from wikipedia:\n\nIn biological systems such as organisms, ecosystems, or the biosphere, most parameters must stay under control within a narrow range around a certain optimal level under certain environmental conditions. The deviation of the optimal value of the controlled parameter can result from the changes in internal and external environments. A change of some of the environmental conditions may also require change of that range to change for the system to function. The value of the parameter to maintain is recorded by a reception system and conveyed to a regulation module via an information channel.\n\nBiological systems contain many types of regulatory circuits, among which positive and negative feedbacks. Positive and negative don't imply consequences of the feedback have positive or negative final effect. The negative feedback loop tends to slow down a process, while the positive feedback loop tends to accelerate it.\n\nFeedback and regulation are self related. The negative feedback helps to maintain stability in a system in spite of external changes. It is related to homeostasis. Positive feedback amplifies possibilities of divergences (evolution, change of goals); it is the condition to change, evolution, growth; it gives the system the ability to access new points of equilibrium.\n\nFor example, in an organism, most positive feedbacks provide for fast autoexcitation of elements of endocrine and nervous systems (in particular, in stress responses conditions) and play a key role in regulation of morphogenesis, growth, and development of organs, all processes which are in essence a rapid escape from the initial state. Homeostasis is especially visible in the nervous and endocrine systems when considered at organism level.\n\n\n\n\nI think what you may be looking at is interaction... essentially, this is when information is both taken from the outside and used to influence neural events, and when neural knowledge is used to act upon outside events. For example, interaction in the visual system would be looking at a flower: your eyes are giving you information about it's shape, colour, etc., while at the same time your brain is recalling what a flower should look like and analysing the context to give you clues. With both these types of information you are able to deduce that it a flower.\n\nThis is in comparison with feed-forward processing that would only use context/recall clues, and feedback processing that only would analyse the shape/colour of the flower.\n\nHope that help somehow!
899754
the autonomic nervous system is under involuntary control and the somatic nervous system is under voluntary control\n\nthere would be a lot more axons in the somatic nervous system because of muscle movement
249404
Homeostasis is a general concept in biology which you can look up on wikipedia. Malarial mosquitoes, like all organisms, need to maintain homeostasis in order to survive. Perhaps you are reading your homework question the wrong way.
325307
The hormones in the endocrine system help keep the body in balance.\n\nCertain organisms can either release too many of a hormone or not enough.\n\nThese organs are vital in the endocrine system (this is not all of them): thyroid, pancreas, pituitary gland, kidneys, reproductive organs, adrenal gland, etc.\n\nChanges in hormone levels can affect the whole body.\n\nMost notorious of endocrine disorders:\nHypothyroidism, Hyperthyroidism, Diabetes, etc.\n\nFor more information follow the link below...
504341
The endocrine system is all about hormones, and the nervous system coordinates the activity of the muscles, monitors the organs, constructs and also stops input from the senses, and initiates actions.
877318
There are many ways in which these two systems work together to maintain homeostasis but let's keep it simple if we can...\nBy excretory system I imagine you are referring to the kidneys, ureter, bladder, etc. This system receives about a quarter of the blood volume from each stroke of the heart, and filters out the impurities and excess water from the bloodstream. By doing this the kidneys (along with the lungs) help to maintain the pH of the blood (maintain the acid to base balance.) If the pH varies too much then the person's life could be in danger. By removing excess minerals from the body the kidneys also prevent potential life-threatening problems from occurring. For example, if you have too much potassium in your body, even though it is necessary to have some, your heart could stop. \nBy removing excess water from the blood, along with producing certain hormones, the kidneys also help blood pressure from getting too high or low. A healthy heart and blood vessels also contribute to maintaining blood pressure by constricting and expanding the vessels, and by changing the rate of your pulse. Hope this helps some...
917668
Hi there !\nWhat do you mean by the question ? \nYou expect somebody to describe the "entire digestion" and the "metabolism mechanism" of the Human body in this column ?\nBetter verify the "Book of Physiology by Guyton" or "Chatterjee"..they have given beautiful descriptions ! \nbest wishes !
464420
because the regulatory mechanisms that control rr and tv are mainly controlled by the autonomic nervous system ie hormonal control, low o2 conc does not affect these as the there are no feedback mechanisms from the tissues that need the o2, the systems, in other words , are not intrinsically linked
356574
Yes. It is governed by the autonomic system that resides within your sub-conscious. We do not have to THINK consciously,  about where to send our breathing, how much synovial fluid to distribute within the joints, or even how much current to distribute whne we activate(Innervate) a motor end plate(Muscle). That is the beauty of allowing our natural self manage the essentials while we use our faculties to create!
495722
Similarities:\n1. Both project effects to remote sites in the body.\n2. Both use negative and positive feedback systems. (e.g. The parasympathetic and sympathetic nervous systems and the hormones with opposite effects).\n3. Both project effects on each other.\nDifferences:\n1. The nervous system usually responds to events that require a fast response, and are short in duration, while the endocrine system is usually reponsible for handling/regulating long-term things. \n2. The nervous system projects its effects to a discrete region. The endocrine system generally projects body wide.\n3. Sorry I can't recall a third attribute right now.
555479
What Is the Endocrine System?\nThe foundations of the endocrine system are the hormones and glands. As the body's chemical messengers, hormones (pronounced: hor-moanz) transfer information and instructions from one set of cells to another. Many different hormones move through the bloodstream, but each type of hormone is designed to affect only certain cells. \n\nA gland is a group of cells that produces and secretes, or gives off, chemicals. A gland selects and removes materials from the blood, processes them, and secretes the finished chemical product for use somewhere in the body. Some types of glands release their secretions in specific areas. For instance, exocrine (pronounced: ek-suh-krin) glands, such as the sweat and salivary glands, release secretions in the skin or inside the mouth. Endocrine glands, on the other hand, release more than 20 major hormones directly into the bloodstream where they can be transported to cells in other parts of the body. \n\nThe major glands that make up the human endocrine system include the:\n\nhypothalamus \npituitary gland \nthyroid \nparathyroids \nadrenal glands \npineal body \nreproductive glands (which include the ovaries and testes) \nThe hypothalamus (pronounced: hi-po-tha-luh-mus), a collection of specialized cells that is located in the lower central part of the brain, is the main link between the endocrine and nervous systems. Nerve cells in the hypothalamus control the pituitary gland by producing chemicals that either stimulate or suppress hormone secretions from the pituitary. \n\nAlthough it is no bigger than a pea, the pituitary (pronounced: puh-too-uh-ter-ee) gland, located at the base of the brain just beneath the hypothalamus, is considered the most important part of the endocrine system. It's often called the "master gland" because it makes hormones that control several other endocrine glands. The production and secretion of pituitary hormones can be influenced by factors such as emotions and changes in the seasons. To accomplish this, the hypothalamus provides information sensed by the brain (such as environmental temperature, light exposure patterns, and feelings) to the pituitary.\n\nThe tiny pituitary is divided into two parts: the anterior lobe and the posterior lobe. The anterior lobe regulates the activity of the thyroid, adrenals, and reproductive glands. The anterior lobe produces hormones such as:\n\ngrowth hormone, which stimulates the growth of bone and other body tissues and plays a role in the body's handling of nutrients and minerals \nprolactin (pronounced: pro-lak-tin), which activates milk production in women who are breastfeeding \nthyrotropin (pronounced: thy-ruh-tro-pin), which stimulates the thyroid gland to produce thyroid hormones \ncorticotropin (pronounced: kor-tih-ko-tro-pin), which stimulates the adrenal gland to produce certain hormones \nThe pituitary also secretes endorphins (pronounced: en-dor-fin), chemicals that act on the nervous system and reduce feelings of pain. In addition, the pituitary secretes hormones that signal the reproductive organs to make sex hormones. The pituitary gland also controls ovulation and the menstrual cycle in women. \n\nThe posterior lobe of the pituitary releases antidiuretic (pronounced: an-ty-dy-uh-reh-tik) hormone, which helps control the balance of water in the body. Antidiuretic hormone also affects the production of oxytocin (pronounced: ahk-see-toe-sin), which triggers the contractions of the uterus in a woman having a baby. \n\nThe thyroid (pronounced: thy-royd), located in the front part of the lower neck, is shaped like a bow tie or butterfly and produces the thyroid hormones thyroxine (pronounced: thy-rahk-seen) and triiodothyronine (pronounced: try-eye-uh-doe-thy-ruh-neen). These hormones control the rate at which cells burn fuels from food to produce energy. The production and release of thyroid hormones is controlled by thyrotropin (pronounced: thigh-ruh-tro-pin), which