Preview

Human Homeostasis

Satisfactory Essays
Open Document
Open Document
1108 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Human Homeostasis
Name: ______________________________________ Date: ________________________

1.3.1.2 - Human Homeostasis

Vocabulary: dehydration-lack of water needed in your body
Heat stroke-highest body temperature where you need medical attention
Homeostasis- when an organism maintains stable internal conditions in a changing environment Hypothermia-lowest body temperature where you need medical attention Involuntary-automatic occurance Thermoregulation -the process in which a steady temperature is maintained inside the body Voluntary-occurance in which you have to think about and make a choice to do

Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
A thermostat is a device that regulates the temperature inside a building.

1. What does a thermostat do if it gets too cool? __________lowers the mercury level__________________________

2. What does a thermostat do if it gets too hot? _____________increases the mercury level________________________

3. How do our bodies sometimes act like a thermostat?
_______________________We react to the heat or cold with changing to a level that is stable__________________________________________________

Gizmo Warm-up
To survive, an organism must be able to maintain stable internal conditions in a changing environment. This process is called homeostasis. The Human Homeostasis Gizmo™ allows you to explore how the human body stays at a nearly constant temperature in different conditions. Notice the Air temp. and Body temp. thermometers representing the air temperature and body temperature.

1. What is the initial air temperature? _______32 degrees Fahrenheit______

2. What is the initial body temperature? _____99 degrees Farenheit______

3. Next to each factor listed below, write “increase,” “decrease,” or “same” based on how you expect that factor to affect body temperature.

Raising air temperature: increase Sweating: decrease Lowering air temperature:

You May Also Find These Documents Helpful

  • Satisfactory Essays

    To survive, an organism must be able to maintain stable internal conditions in a changing environment. This process is called homeostasis. The Human Homeostasis Gizmo™ allows you to explore how the human body stays at a nearly constant temperature in different conditions. Notice the Air temp. and Body temp. thermometers representing the air temperature and body temperature.…

    • 1077 Words
    • 5 Pages
    Satisfactory Essays
  • Good Essays

    Homeostasis is keeping the body balanced to allow cells to function, despite external environment. Homeostasis is important because the cells, blood and tissue fluids can change by slowing down or even stop a vital chemical reaction. Its aim is to keep the body to stay the same, at a normal condition.…

    • 1272 Words
    • 6 Pages
    Good Essays
  • Powerful Essays

    1a – Explain the structures of a human cellMost human cells contain small structures known as organelles (“little organs”), each of which performs a highly specialised task, such as manufacturing protein. Organelles are usually surrounded by a membrane, and they float in a jelly-like substance called cytoplasm. Ninety percent of cytoplasm is water; it also contains enzymes, amino acids, and other molecules needed for cell functions. The structure…

    • 4879 Words
    • 20 Pages
    Powerful Essays
  • Good Essays

    In humans homeostasis happens when the body regulates its body temperature in an effort to maintain an internal temperature at around 37®C. For example, during the summer when the weather is very hot (outside condition) we sweat to cool ourselves down and in the winter when the weather is very cold (outside condition) we shiver…

    • 1604 Words
    • 7 Pages
    Good Essays
  • Good Essays

    1. Anaplasia- abnormalities in cell structure and loss of differentiation: for example, cancer cells typically lose the appearance of the parent cells and come to…

    • 473 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    anatomy task3 p5,m2,d2

    • 1339 Words
    • 5 Pages

    The actual word homeostasis means "steady state". Homeostasis describes how the body regulates its process to keep its internal conditions as stable as possible. Homeostasis is necessary because human cells are efficient but very demanding. The phrase homeostasis is a bit confusing; conditions inside our bodies are not constant but are kept within a narrow range. Some factors such as temperature and blood PH change slightly while others such as blood glucose very considerably throughout a normal day without producing any harmful effects. A brief description of homeostasis is that it is maintenance of a constant internal environment in response to a change in external environment. Negative feed makes sure that as levels return to normal, corrective mechanisms are scaled down, it’s when the body maintains conditions within particular limits, and the body will do this by opposing a change that deviates from the normal, core temperature falls.…

    • 1339 Words
    • 5 Pages
    Powerful Essays
  • Satisfactory Essays

    Homeostasis is maintaining an Internal Balance. If we fail to maintain an internal balance every system inside of our body will be disrupted.…

    • 466 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    P5 Unit 5 homeostasis

    • 1143 Words
    • 4 Pages

    This brings the blood closer to the surface of the skin so more heat can be lost, this is why we look red when we’re hot.…

    • 1143 Words
    • 4 Pages
    Better Essays
  • Good Essays

    Homeostasis is the control of internal conditions, be it temperature, specific blood conditions or other variables within living organisms, the purpose of homeostasis is to provide a consistent internal environment for set processes to occur. The endocrine system is made up of glands that produce hormones and release them into the blood, they cause certain reactions to occur in specific tissues. The endocrine system affects a large number of the body’s functions, including, metabolism, sexual function, reproduction, moods, and development. (dummies.com) The urinary system is the main excretory system and consists of 2 kidneys, 2 ureters, the bladder and the urethra. The system plays a vital part in homeostasis of water and electroltes in…

    • 800 Words
    • 4 Pages
    Good Essays
  • Better Essays

    P5. Homeostasis is the process by which a constant internal environment is maintained by our body. For instance, this means that in our body, temperature, blood sugar levels, etc must be kept within a narrow range even when we are in a freezing climate, or while doing vigorous exercise etc. All homeostatic control mechanisms have at least three interdependent components which are: The receptor responds to changes in the environment, for example, detects temperature change. Then, after the receptor senses a stimuli, it sends information to a ‘’control centre’’ to regulate the response. The control centre which is in the brain decides a response to the stimuli. Then, the control centre sends signals to an effector such as muscles and organs. Negative feedback is a control system that occurs when an important variable such as pH of blood deviates from the certain limits which can cause reactions that will turn variable into a normal range. For e.g.…

    • 1787 Words
    • 8 Pages
    Better Essays
  • Satisfactory Essays

    Body temperature is usually maintained to a constant level of 36.5 – 37.5 degrees Celsius through biological homeostasis which he have been learning about in class throughout this term!…

    • 253 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Homeostatic Imbalances

    • 342 Words
    • 2 Pages

    Homeostasis is extremely important for proper functioning of all the human body systems. When our body is not able to regulate temperature all our body functions will fail to work. Even the enzymes need a specific constant temperature to work at their optimum level. At higher temperatures the enzymes will stop working. (Steadyheatlh, 2004)…

    • 342 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Thermoregulation Body

    • 450 Words
    • 2 Pages

    8. Thermoregulation is the process the body uses in order to keep the body at a regular temperature, which is about 37 degrees Celsius.…

    • 450 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    Physiology chapter 1 notes

    • 1237 Words
    • 5 Pages

    - Describe how negative feedback systems regulate body temperature. Include the role of sensors, effectors, input, output, integrating center, set point, error signal, and regulated variables.…

    • 1237 Words
    • 5 Pages
    Powerful Essays
  • Powerful Essays

    Homeostasis In Biology

    • 2110 Words
    • 9 Pages

    A central organizing concept in biology is that life changes and develops through evolution, and that all life-forms known have a common origin. The theory of evolution postulates that all organisms on the Earth, both living and extinct, have descended from a common ancestor or an ancestral gene pool. This last universal common ancestor of all organisms is believed to have appeared about 3.5 billion years ago.[21] Biologists generally regard the universality and ubiquity of the genetic code as definitive evidence in favor of the theory of universal common descent for all bacteria, archaea, and eukaryotes (see: origin of life).[22]…

    • 2110 Words
    • 9 Pages
    Powerful Essays