The effect of the temperature on the reaction time of human hand responding to a sight stimulus Design Research Question: How does the temperature affect the reaction time of human hand in responding to a sight stimulus? Hypothesis: Temperature is an important factor in regulating blood supply and nerve signals. Lower temperatures decrease the nerve signals from brain to hand, thereby slow the reaction (Ascroft). When the hand is submerged in cold water, the sensory receptor nerves in the skin recognize the fall in temperature and send signals to the hypothalamus. Then the hypothalamus sends signals that cause blood vessels to constrict in order to preserve heat.
Maintaining homeostasis ensures that, there is stability within the body processes so that the body is fit to do different activities as desirable (Healey, 2000). Maintaining homeostasis, for instance, ensures that the hypothalamus regulates the level of heat in the body. Proper regulation implies that when it is very hot, the hypothalamus will act to ensure vasodilatation and, as a result, heat can be lost through the blood vein via the skin to the outside. When it is cold, it is similarly able to cause vasoconstriction in order to withdraw blood from the veins on the skin service. Consequentially, this helps in retaining heat.
This conversion increases the boiling point to higher temperature levels, which facilitates the removal of heat brought by the outside air. • Condenser: This component receives gas at high pressure
The hypothalamus helps regulate your body temperature and makes sure you maintain homeostasis. This is extremely important for showering because the hypothalamus makes sure that if the water is too hot or too cold for your internal organs, it will adjust to the temperature of the water. That way you will not harm yourself in the process of washing yourself. For example, if the water is too cold your body will begin to get goose bumps and cause you to shiver. This is the hypothalamus way to regulate your temperature to warm your body up and make sure your body maintain
For an endothermic reaction, heat is absorbed in the reaction, and the value of ΔH is positive. For an exothermic reaction, the situation is just the opposite. Heat is released in the reaction, so heat is a product, and the value of ΔH is negative. If we picture heat as a reactant or a product, we can apply Le Chatelier's principle on raising or lowering concentrations. For instance, if we raise the temperature on an endothermic reaction, it is essentially like adding more reactant to the system, and therefore, by Le Chatelier's principle, the equilibrium will shift the right.
Sympathetic nervous activity during cold stress increases cardiac output to increase capillary filtration rate in muscle tissue to the supplying the nutrients and oxygen to the muscular tissue and also allow for increase muscle to contract. Heart rate and blood pressure will be measured in the cold pressor test is to determine the level of stress response in the body. It is based on the reflex pathway where the afferent limb is somatic fibers where as the efferent limb is sympathetic fibers .The cold pressor test is an ethical and efficient way to affect the sympathetic response
Assignment 1 – Unit 11 Physiology of Human Body Systems Task 1 The lymphatic system is the system which is involved in homeostasis in our body by draining the interstitial fluid. It is also in charge of defending our bodies from diseases. This is because the lymphatic system provides the place for formation and maturation of the lymphocytes which the white blood cells involved in immunity which are activate when they are in contact with antigens. Also the lymphatic system stops fluid form building up in the tissues in our body and its acts as a filter for the blood and removes the pathogens and antigens from the blood. Role of the parts: Lymph nodes – Lymph nodes are enclosed, located around the lymph vessels.
HOW THE SKIN PROTECTS THE BODY The skin plays a major part in regulating human body temperature and protecting the body. It consists of two layers: the outer epidermis and the inner epidermis. Beneath these layer is the adipose tissue, which contains fat-rich cells. PROTECTION:The outermost layers of the skin are dead cells, this protects the living cells below from Infection, Mechanical, Dehydration. The epidermis protects the body from damage and acts as barrier to prevent the loss of water and the entry of pathogens.The epidermis is the outer layer of the skin.
Higher body temperatures are found also when the body is undergoing a high level of respiration, and this causes haemoglobin to have a lower affinity for oxygen, meaning that oxygen is released more freely to keep respiration going. 2,3-Bisphosphoglyceric acid is an isomer of a glycolytic intermediate from respiration. It has a high affinity for deoxygenated haemoglobin, causing the haemoglobin to release the remaining oxygen more easily. It is well known that low O2 will encourage increased breathing, as will high CO2 – O2 is vital for the continued production of energy and thus life, and CO2 is dangerous in high enough quantities and must be removed from the body. Therefore, it is of vital importance for the body to recognise and compensate for disrupted blood gas levels.
Ensure the warped region is fully covered. Additionally, make sure that the towels can withstand the high temperatures of iron. Drench the towels thoroughly as you wring out excessive water. It’s important to note that the towel should be damp and not wet. • Place the wrapped warped wood on a flat surface that will similarly suffice the high temperature of the iron.