Presentation on theme: "Interaction Between Systems"— Presentation transcript:
1Interaction Between Systems Cells within the human body require oxygen to function properly and produce carbon dioxide as a waste product. Which body systems are responsible for maintaining this balance?endocrine and excretorycirculatory and respiratorydigestive and skeletalmuscular and circulatory
22. How do the human respiratory and circulatory systems work together to meet the body's needs? The heart pumps oxygen into the lungs.The lungs pump oxygen into the heart.The heart pumps blood into the lungs.The lungs pump blood into the heart.
33. The digestive system prepares food to be transported by the circulatory system by — A. breaking food into moleculesB. exchanging food for oxygenC. using food to repair heart tissueD. turning food into blood cells
4Carpal tunnel syndrome (CTS) is a condition caused by excess pressure on a nerve in the wrist. It occurs when the muscles in the hands, wrist and arms are kept tense and the motions of the hands are repetitive for long periods of time. People who type with poor posture are more likely to have CTS than other people. The symptoms include tingling and numbness in the hand, pain, and a weak grip. Which body systems are most affected by carpal tunnel syndrome?nervous and muscularmuscular and skeletalcirculatory and nervouscirculatory and skeletal
5Homeostasis Feedback Mechanisms Objective: The student will identify key feedback systems and tell how they work to regulate the body.
6Homeostasis or equilibrium means to keep balance within an organism.
7Examples of homoeostasis: Body temperature can’t be toohot or cold. 98° F is perfect!Blood pressure can’t be too high or low.Blood sugar levels can’tbe too high or low.
8Your body has to keep the inside stable no matter what is happening on the outside.
9Temperature A steady body temperature is important for homeostasis Temperature A steady body temperature is important for homeostasis. Temperatures that are too high or too low can be _______ _____ F is perfect!fatal98°
10our skin, cooling us down. What happens to the body if the outside temperature is 102° F ?We sweat!Sweat evaporates fromour skin, cooling us down.
11What happens if the outside temperature is 32° F What happens if the outside temperature is 32° F? What does the body do to keep the internal temperature in balance?1st –We Shiver, this makes ourmuscles produce heat.2nd –Goosebumps form, skinpores close up trapping inheat.3rd- Hair Stands up, helping tohold in heat.
12Fever What causes us to have a fever? When bacteria or a virus attacks our bodies we sometimes begin to run a fever. The fever _______ or body temperature and creates a hostile environment that can _______________ that are making us sick.raiseskill the germs
13Which organ systems are key in temperature homeostasis? SKIN! Integumentary SystemBRAIN! Nervous System
14Vomiting and DiarrheaSOMETIMES people have eaten food that has spoiled or have bacteria that have entered their bodies. This is the bodies response to ______________ of harmful substances.rid the body
15B) Blood Pressure – Blood pressure affects how the blood flows throughout the body.Specialized cells withinthe arteries are sensitiveto changes in bloodpressure.When blood pressure risesand falls, hormones are released and they send signals to the brain.
16The brain then sends messages for the blood vessels to make the walls of the arteries larger or smaller. This allows the blood to flow through the veins more easily.
17When blood pressure is too high, the hormones signal the body to hold more water. The extra water makes the blood thinner so the blood flows more easily through the bodyOnce the blood pressurebecomes balanced again,the circulatory system goesback to normal.
18Which organ systems are important for blood pressure homeostasis? Circulatory SystemNervous SystemEndocrine System (hormones)
19Blood Sugar –When we eat, the glucose (sugar) concentration in our blood rises. When bloodsugar levels rise too high, a hormone calledinsulin is released from the pancreas to breakdown the sugar.
20Insulin converts glucose into a form that the liver takes in and stores. As blood sugar levels drop, the hormone called glucagon is released from the pancreas. Glucagon turns storedsugar into glucose forthe body to then use.This constant releaseof hormones keeps thebody’s glucose levelsin balance.
21Which organ systems are important for blood sugar homeostasis? Digestive SystemCirculatory SystemEndocrine System (hormones)
22Feedback Mechanisms are how the body stays in balance.
23Sweat glands are found in human skin Sweat glands are found in human skin. These glands release sweat to help the body cool during exercise. What would MOST LIKELY happen during exercise if a person’s sweat glands were NOT functioning?The body would become overheated.More sweat would be released.The upper layer of skin would become thicker.More hair would grow on the skin.
24Harmful bacteria enters a person’s body through contaminanted food Harmful bacteria enters a person’s body through contaminanted food. As a result, the person vomits. This response MOST likely fight infection by ----A) forcing bacteria to leave the body.B) killing the bacteria with stomach acids.C) creating new cells to hunt and kill bacteria.D) keeping the bacteria away from other people
25How does the body respond to dehydration? Raising body temperatureIncreasing breathing rateProducing less urineSweating more often
26Cells in a person’s body begin to take in large numbers of sugar molecules from the bloodstream. They store the molecules for future use. A person with this type of cellular activity has MOST likely just -----Gone to sleep C) stopped walkingFinished a meal D) begun to exercise
27How does exercise affect the circulatory and respiratory systems How does exercise affect the circulatory and respiratory systems? Follow the directions on the back of your paper to explore how these two systems work together.
28Get with a partner and begin! Homeostasis & ExerciseInteraction Between the Circulatory and Respiratory SystemsWith your partner, you will determine your at rest breathing rate by counting the number of breaths you take in 15 seconds. You will then do jumping jacks for 1 minute. Immediately following the jumping jacks, you will again count the number of breaths you take in 15 seconds. You will then take a 5 minute break. After the 5 minutes you will again count the number of breaths you take in 15 seconds.Get with a partner and begin!