Presentation on theme: "How is your body like a machine?"— Presentation transcript:
1 How is your body like a machine? Body SystemsHow is your body like a machine?
2 Let’s think back…. Why do all the body systems work together? See if the students know the answer…You may point out a few systems and see if they know the major functions of them.
3 To maintain homeostasis! Review homeostasis - maintaining an internal balance in living organisms. All body systems must work together for this to happen.
4 Four major themes 1. feedback loops 2. structure and function 3. division of labor4. interdependence of organ systems
5 SKELETAL SYSTEM What are the functions? -movement -structural support -produces red and white blood cells-movement-structural support-provide mineralsWhat other systems are involved?You have to click to bring in each text box. Ask the function question first, see what responses you get. Red and white blood cells are found in the marrow. Movement is done with muscles. Our skeleton is internal. Are all “skeletons” internal?Other system involved – muscular (movement), immune (red and white blood cells),-muscular-immunecirculatory
6 MUSCULAR SYSTEM What are the functions? -movement (body parts, digestion, circulation)What other systems does it involve?You might ask them again what organic compound you find in large amounts in muscles. – proteinOther systems involved – skeletal (movement), digestive (movement of food), circulatory (moving oxygen to muscles)-Skeletal-Nervous-Digestive-Circulatory
7 Muscle Types SKELETAL SMOOTH CARDIAC The names of the muscle types come in individually when you hit return. Go through with the students how to identify the different types. (Ex: skeletal is striated and multi-nucleated)SKELETALSMOOTHCARDIAC
8 How do you bend your elbow? To what are muscles attached?The bicep muscle contracts, causing the elbow to bend.The tricep muscle contracts, causing the elbow to straighten.Muscles are attached to bone by ligaments.Show where the bicep and tricep muscles are in an arm.This works similar to a simple machine – lever.This works similar to what simple machine?
9 LYMPHATIC SYSTEMHelps protect the body from disease Collects fluid lost from blood vessels and returns the fluid to the circulatory system
10 LYMPHATIC SYSTEM What are the functions? protect body from disease contains white blood cells, antibodies and lymphDo not need to go into much detail here – will do that during microorganism unit.
11 INTEGUMENTARY SYSTEM Function System Protection/Barrier Immune Protect Against DehydrationExcretoryCutaneous SensationNervousEach function comes in individually when you hit return. This slide correlates with a question on the Scavenger Hunt/Making Bodies. This is showing how the functions of the integumentary correlate with other systems.Regulate Body TempExcretoryExcrete Sweat, GasesExcretory
12 Integumentary Hair Epidermis Sebaceous Gland Dermis Sweat Gland Parts of the integumentary system. Each part comes in individually when you hit return.Sweat Gland
13 How does skin vary in different organisms? Skin variations – hair, fur, scales, thick, thin, moist, dryAsk the skin type of each of each organism. How is their structure related to their function?
14 NERVOUS SYSTEM What are the functions? DendriteNucleusWhat are the functions?Cell bodyRespond to internal and external stimuliAxonHow does the nervous system work?Arrows on diagram show the direction of a nerve impulse being transmittedWhat other systems are involved?all
15 The Brain Brain Stem Cerebrum Hypothalamus Cerebellum Parts of the brain. Discuss functions.HypothalamusCerebellumBrain Stem
16 EXCRETORY What are the functions? Detoxifies blood Urea, water, salts, excess glucose, excess proteinWhat other systems are involved?What substance is made from detoxified blood?Circulatory
17 Excretory Kidney Ureter Bladder Urethra Blood Urine The arrows follow the path of blood through the kidneys, then urine.BladderUrethra
18 REPRODUCTIVE What are the functions? What other systems are involved? produce gametesproduce hormonessecondary sex characteristicsWhat other systems are involved?Keep the discussion of the parts of this system to a minimum – ovaries, fallopian tubes, uterus, testes.Endocrine
19 Reproductive Ovary Fallopian Tube Uterus Testes Parts of the reproductive system. Discuss the hormones that are produced.Testes
20 ENDOCRINE What are the functions? -produce hormones -deliver chemical messages through the bodyWhat other systems are involved?Discuss the generalized function of the endocrine system, not specifics.nervouscirculatory
21 Endocrine Hypothalamus Pituitary Thyroid Adrenal Pancreas On each gland, or part of the brain, discuss in general what it does. Review fight-or-flight and diabetes (on Scavenger Hunt/Making Bodies)
22 Remember feedback loops? Hypothalamus (Brain)Production StimulatedProduction InhibitedReleasing hormoneRelease-inhibiting hormoneThyroid stimulating hormoneThyroid GlandLow thyroid hormone levelHigh thyroid hormone levelReview feedback loops:Sensors in the brain detect a problem (a stimulus)The brain sends out a message to correct the problemYour body responds to correct the problem (the response)The brain detects when the body reaches the "set point" and stops sending the messageThe endocrine system is full of them!The thyroid hormones regulate cellular metabolic rates through a feedback mechanism. Low concentrations of the thyroid hormones stimulate production and secretion of TSH – releasing hormone from the hypothalamus; high concentrations inhibit TSH – releasing hormone but stimulate TSH release – inhibiting hormone.
23 CIRCULATORY What are the functions? transport: -gases -fluids -waste products -nutrients -hormonesWhat other systems are involved?Do not need to know the pathway of blood through the heart. Need to know the function of gas exchange.ExcretoryRespiratoryEndocrine
24 Circulatory Capillary Aorta (Artery) Heart Vein Parts of the circulatory system. Discuss the difference between arteries of veins, only referring to gases. Discuss function of capillaries.Vein
25 RESPIRATORY What are the functions? -exchange of carbon dioxide and oxygen between the blood, air and tissuesWhat other systems are involved?Relate circulatory to respiratory system.Circulatory
26 Respiratory Where does gas exchange take place? Alveoli Trachea Bronchi/ BronchiolesLungsParts of the respiratory system. Discuss surface area of alveoli during gas exchange.Diaphragm
27 DIGESTIVE What are the functions? to break down food into smaller particles with the help of enzymes so it can be absorbed and used by cells.What other systems are involved?Discuss the function of the system.CirculatoryNervous
28 Digestive Salivary Glands Mouth Esophagus Stomach Liver Pancreas Parts of the digestive system. Include peristalsis here.LiverPancreasSmall IntestineLarge IntestineRectum
29 Digestive What substances help break down the food that you eat? ENZYMESCompoundEnzymeMonomerStarchAmylaseMonosaccharideFatty Acids/ GlycerolLipidsBile/LipaseDiscussion of enzymes.ProteinsProteaseAmino Acids
30 Digestive Follow the path of food during digestion. Where is food mechanically digested? Chemically digested?Go through the pathway of food. Enter to show each arrow.