P5 anatomy and physiology homeostasis

June 1, 0 Comments Epithelial Tissue Epithelial tissue is a sheet of cells that covers a body surface or lines a body cavity. Two forms occur in the human body:

P5 anatomy and physiology homeostasis

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 signals 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.

Classification of Epithelia

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. 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.Homeostasis P5 M2 D2 Summary. United Kingdom Unit 5 - Anatomy and Physiology for Health and Social Care (1st year) About the document.

Summarized whole book? unknown. Subjects. Homeostasis P5 M2 D2. Uploaded on. December 3, Number of pages. 9. Written in. This is a course of study in heating, ventilation, air conditioning, and refrigeration trade. This course includes the study of the laws of thermodynamics, the refrigeration cycle, brazing of refrigerant lines, understanding the use of and maintenance of heating, ventilation, air conditioning, and refrigeration equipment, applicable safety practices, and the proper use of refrigerants.

This is a course of study in heating, ventilation, air conditioning, and refrigeration trade. This course includes the study of the laws of thermodynamics, the refrigeration cycle, brazing of refrigerant lines, understanding the use of and maintenance of heating, ventilation, air conditioning, and refrigeration equipment, applicable safety practices, and the proper use of refrigerants.

This is a course of study in heating, ventilation, air conditioning, and refrigeration trade. This course includes the study of the laws of thermodynamics, the refrigeration cycle, brazing of refrigerant lines, understanding the use of and maintenance of heating, ventilation, air conditioning, and refrigeration equipment, applicable safety practices, and the proper use of refrigerants.

Unit 5: Anatomy and physiology for health and social care P5: explain the concept of Homeostasis Introduction In this essay I will be writing about what homoeostasis is and how it functions, I will also be talking about what an internal environment is, what a negative feedback mechanism is and how we keep out body’s internal environment stable/5(1).

Play a game of Kahoot! here. Kahoot!

P5 anatomy and physiology homeostasis

is a free game-based learning platform that makes it fun to learn – any subject, in any language, on any device, for all ages!

Kahoot! | Play this quiz now!