This energy mainly comes from carbohydrates and fats that we take as food. Carbohydrates are decayed into glucose, glucose is soluble in blood. It is transported by the blood cells to various parts of the body where it reacts with oxygen in a series of steps producing carbon dioxide CO2water H2O and energy.
A blog that can help with essays regarding some health and social or Health science topics. Explain the concept of homeostasis P5 Discuss the probable homeostatic responses to changes in the internal environment during exercise M2 Homeostasis can be defined as the maintenance of a constant internal environment within the body.
Sensors within our body monitor a number of things including breathing, heart rate, body temperature and also blood sugar levels.
These can also be known as detectors, which send Unit5 anatomy and physiology for health to the control centre when there is a change, or the value has deviated from the norm.
This value will then be corrected so that the norm can be maintained study.
Negative feedback is important in homeostasis and it responds when certain conditions change. This therefore means that receptors and effectors, i. This may also be explained by saying that a change in variable is detected by the receptor and the information from this is sent along an afferent pathway to the control centre.
The control centre then sends the information along an efferent pathway to the effector whereby it either opposes or enhances the stimulus Bioserv, In the medulla oblongata there are chemoreceptors which are adjacent to the respiratory centre. These chemoreceptors are sensitive to the changes of arterial PCO2, PO2 and also pH, and send information to the medulla, determining the nervous response depending on the changes of the variables Bioserv, Nerve impulses are therefore then sent to the repiratory muscles controlling both the force and how often it contracts.
Furthermore, this changes the rate and depth of breathing and also ventilation UWE, The change in ventilation brings CO2, O2 and pH back to their norm.
Nerve impulses are sent along the phrenic nerve towards the external intercostal muscles which stimulates muscle contraction for inspiration.
Expiration occurs due to the elastic recoil of the lungs and chest wall. This nerve firing is what gives us our resting breathing rate of breaths per minute.
Btec Level: 3 in Health and Social Care Unit 5: Anatomy and physiology for Health and Social Care Assessor: F. Mansell Task2: The main tissue types of the body and the role these play in two named organs of the body. Medical Anatomy and Physiology Unit Four – Skeletal System Page 5 Draft Copy c. flat: Generally thin and flat, composed of two layers of compact bone on the outside with a . Normal is a town in McLean County, Illinois, United caninariojana.com of the census, the town's population was 52, Normal is the smaller of two principal municipalities of the Bloomington–Normal metropolitan area, and Illinois' seventh most populous community outside the Chicago metropolitan caninariojana.com's mayor is Chris Koos. The main .
During exercise, the muscles have to metabolise faster as they require both more oxygen and nutrients.
Due to this, the heart then pumps the blood harder and faster to keep up this demand, as the heart is doing more work to supply this blood. This means that more oxygen is required, meaning, the response given is breathing being increased so that oxygen is pumped to all cells quicker.
Due to homeostasis, levels of oxygen in the blood are always being measured, ensuring oxygen, carbon dioxide and also pH levels return to their norm.
Messages that are sent to the effectors informing them that the breathing rate has to be increased, however, will decrease again when all activity has been stopped. Homeostasis also controls heart rate. The medulla which is located within the brain also controls heart rate.
When we are carrying out exercise the heart has to supply oxygenated blood to the rest of the body. There is information sent to the medulla from the muscles via the nervous system.
This allows the release of chemicals, to travel to the sinus node. The sinus node then therefore stimulates the contractions of the heart, also increasing the force which in turn, increases heart rate. When you are at rest, or stop exercising, another message is sent to the medulla, which in turn releases acetylcholine, slowing the heart rate.
When engaging in more intense exercise, epinephrine and norepinephrine is released, increasing heart rate to supply more oxygen to the body. There are two pathways known as the autonomic nervous system and the parasympathetic nervous system. During exercise the sympathetic nervous system is activated and this increases heart rate and also the force of the contractions due to the nerve impulses being transmitted to the heart via the sympathetic nervous system Cvphysiology, In comparison the parasympathetic nervous system decreases heart and rate and therefore it returns back to the norm and this system is activated when we are resting.
The vagal nerve is what reduces heart rate. The impulses initiate at the SA node moving a wave of electrical excitation across the atria, which respond by contracting.Hey there, just wanted to create a new thread for those of you sitting the OCR Health and Social Care exam on 17th June on Anatomy and Physiology:D So if.
Anatomy and Physiology for Health and Social Care Assignment 3 Body Systems and their role in Energy Metabolism and The Inter-relationship between Body Systems Anatomy and Physiology for Health and Social Care Assignment 3 Body Systems and their role in Energy Metabolism and The Inter-relationship between Body Systems “Explain the physiology.
Aerobic Respiration Aerobic respiration is the process that takes place in presence of oxygen. Aerobic respiration break down molecules to get hold of bio-chemical energy and has oxygen. molecules used by cells in aerobic respiration are glucose, amino acids and fatty acids.
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Chapter 1 Introduction to Anatomy and Physiology An understanding of the structure (anatomy) and function (physiology) of the human body is important in the life of every individual. This chapter presents the following: · introduction to the sciences of anatomy and physiology.
Human Anatomy & Physiology takes a learner-centered approach to help today’s A&P students grasp key concepts in anatomy & physiology, and apply these concepts to .