.what are the skin ( several ways) circulatory system, nervous system, and sensory system involved in temperat
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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.
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There are many different type of sensory receptors for telling different stimuli apart. So the ones that sense pressure on your skin are different from the ones that detect heat. Your retina has receptors for different wavelengths of light, your tongue has different receptors for different tastes, and so on. From there, information is transfered to afferent neurons which send the signal up to your brain. There is a labeled-line principle which basically states that each sensory neuron corresponds to a specific part of the brain. So when that area is stimulated, the brain "knows" what, where, intensity, etc.
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Your skin, hair, nails and liver.
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It is the peripheral nervous system.  It is a system of nerves that are outside the brain and spinal cord (the ones that extend into your arms and legs and into your chest and abdomen).
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Actually the Dermis is the second layer of skin the Epidermis is the outer most layer.\n\nThe dermis lies below the epidermis and contains a number of structures including blood vessels, nerves, hair follicles, smooth muscle, glands and lymphatic tissue.
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The two main components of the central nervous system are the spine and brain. Peripery nerves branch out from the spinal cord from limb to toenail.
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The endocrine system produces hormones and works with the circulatory system - that carries them. The nervous system works with the respiratory system and every other system in the body; such as the gastrointestinal system and reproductive systems.
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A circulatory system (cardiovascular system in biology classes) is an organ system that moves substances to and from cells; it can also help stabilize body temperature and pH (part of homeostasis). There are three types of circulatory systems (from simplest to most complex): no circulatory system, open circulatory system, and closed circulatory system.\n\nYou could get more information from the link below...
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Ear SKIN is highly vascular and highly responsive to both emotional states and body temperature changes.  Blood helps with thermoregulation to protect skin-body from overheating or freezing. Some folks' skin is much more sensitive than others too.  Individuals can also vary on a daily basis how sensitive their own skin is from daily emotions or temp.
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nervous system\n\nendocrine system
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The nervous system transports signals from the senses to the brain. "Senses" themselves are in fact just different types of nerve endings on your skin, on your tongue, etc. The signals from these nerve endings are carried to the brain along chains of cells called neurons.
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Salt - kidneys, skin (sweat glands)\nWater - kidneys, skin (sweat glands), lungs (as water vapor)\nCarbon dioxide - lungs\nUrea - kidneys
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Airway, Breathing, Circulation
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http://www.thedoctorslounge.net/studlounge/mnemonics/anatomy.htm\nWarning: many of the mneumonics are dirty, dirty, dirty!\nWith physiology it's helpful to compare/contrast systems such as parasympathetic versus sympathetic or adrenergic or muscarinic receptors, etc...
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cardiovascular system
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The nervous system is divided into the central nervous system (which is the brain and spinal cord), and the peripheral nervous system. \n\nThe peripheral nervous system is everything outside the central nervous system (brain and spinal cord). This peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system. \n\nThe somatic nervous system controls your voluntary behavior (skeletal muscle), and the autonomic nervous system controls the internal organs (involuntary behavior such as smooth muscle contractions). The autonomic nervous system is further divided into the sympathetic division and the parasympathetic division. The actions of both of these divisions is antagonistic to each other, but they work together.\n\nLet's say you are in the woods and you see a bear coming after you. The sympathetic system increases your heart rate, epinephrine is secreted, constricts blood vessels to organs such as that are involved in the digestive process so that more blood goes to your muscles, dilates your pupils, widen bronchial passages, etc. The parasympathetic system does the opposite. If you are laying down on a couch after a meal, your parasympathetic system is in charge. Your heart rate will decrease (no point in increasing it since there is no major physical activity), more blood going to your digestive organs, pupils are not as dilated, etc. The parasympathetic system is the "rest and digest" system.
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Nose, mouth, and skin