Homeostasis is the process of keeping bodily functions in balance, like temperature, respiration, and heart rate. The body's systems work together to maintain a stable internal environment, even when external conditions are changing. Our bodies use feedback systems to help maintain homeostasis, like the hypothalamus and the nervous system.
Homeostasis: Keeping the Balance
NECESSARY LIFE FUNCTIONS
MAINTAINING BOUNDARIES MOVEMENT RESPONSIVENESS DIGESTION METABOLISM EXCRETION REPRODUCTION GROWTH
THE INTERNAL ENVIRONMENT MUST STAY DISTINCT FROM THE EXTERNAL ENVIRONMENT
PROCESS OF BREAKING DOWN INGESTEED FOODSTUFFS TO SIMPLE MOLECULES NUTRIENTS ARE DISTRIBUTED THROUGH THE BODY
CELLULAR AND ORGANISMAL REPRODUCTION SEXUAL REPRODUCTION INVOLVES A “DIVISION OF LABOR” MALE/SPERM FEMALE/OVA
INCREASE IN SIZE OF A BODY PART OR THE ORGANISM ITSELF
the chemical processes that occur within a living organism in order to maintain life
PROCESS OF REMOVING WASTES FROM THE BODY FECES URINE CARBON DIOXIDE
Controlled by the Muscular System
SENSE ENVIRONMENTAL CHANGES REACT TO STIMULI IRRITABILITY
Water Maintaining Body temp of 98.7 Gas exchange (oxygen-Carbon dioxide) Nutrients (Food)
Think of an example of how the body maintains homeostasis. How does this example illustrate the importance of homeostasis?
What would happen if the body failed to maintain homeostasis? Explain your answer.
Brain break: Draw a pickle playing a guitar on a beach towel
Question: How does the human body maintain homeostasis? Clues: • Homeostasis is the body's ability to maintain a stable internal environment. • The body's systems work together to regulate body temperature, pH levels, and other essential functions. • Hormones help to regulate the body's internal environment. In pairs: Select and solve one of the tasks: A. Choose a system of the human body and explain how it helps maintain homeostasis. B. Explain how the body can respond to external changes to maintain homeostasis.
What is homeostasis?
- The body's ability to maintain a stable internal environment
- The ability to adapt to changing environments
- The process of breaking down food for energy
Which body system is primarily responsible for maintaining homeostasis?
- Respiratory system
- Nervous system
- Digestive system
Which of the following is an example of homeostasis in action?
- Regulating body temperature when it's hot outside
- Running a marathon
- Eating a balanced meal
What happens when the body's homeostatic mechanisms fail?
- Improved mental clarity
- Disease and illness can occur
- Heightened physical performance
Which organ plays a key role in regulating blood sugar levels as part of homeostasis?
Work together in pairs: What is the role of negative feedback in maintaining homeostasis in the body?