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Skeletal System

Skeletal System. Skeletal System. A ll of the 1) bones and 2) tissues of the body The 3) adult human skeleton is comprised of 4) 206 bones The skeleton provides 5) stability and structure: It assists in 6) movement P rotects 7) organs S tores 8) minerals P roduces 9) blood cells.

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Skeletal System

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  1. Skeletal System

  2. Skeletal System • All of the 1)bones and 2)tissuesof the body • The 3)adulthuman skeleton is comprised of 4)206bones • The skeleton provides 5)stabilityand structure: • It assists in 6)movement • Protects 7)organs • Stores 8)minerals • Produces 9)bloodcells

  3. Skeletal System • The main 10)jobof the skeleton is to provide 11)supportfor our body • The skeleton is 12)strongbut light • It also helps protect your 13)internalorgans and fragile body 14)tissues

  4. Skeletal System • The 15)cranium (skull) protects your brain and 16)eyes • The 17)ribsprotect your heart and 18)lungs • The 19)vertebrae(spine, backbones) protect your spinal cord

  5. Skeletal System • Bones provide the 20)structurefor muscles to 21)attachso that our bodies are able to 22)move • Tendons are tough 23)inelasticbands that hold muscle to 24)bone

  6. Skeletal System • A bone has an 25)outerlayer of 26)hardbone, which is very strong, 27)denseand tough • Inside this is a layer of 28)spongybone, which is like 29)honeycomb, lighter and slightly 30)flexible • In the middle is 31)jelly-likebone marrow, where new 32)cellsare constantly being produced for the 33)blood

  7. Mind Map • Your Topic is Skeletal System • Fill in all six bubbles • Make sure to use 4 words or less per bubble • School House Rocks-Not so dry bones

  8. Circulatory System • This system is 34)responsiblefor transporting materials throughout the entire 35)body. • It transports nutrients, 36)water, and oxygen to billions of body 37)cells • It also carries away 38)wastesuch as carbon dioxide that body 39)cellsproduce

  9. Circulatory System • The circulatory System is divided into 40)threemajor parts: • 41)Heart • 42)Blood • 43)Blood Vessels

  10. Mind Map • Your Topic is Circulatory System • Fill in all six bubbles • Make sure to use 4 words or less per bubble

  11. Circulatory System-Heart • The heart 44)beatsabout 3 BILLION times during an average 45)lifetime • It is a 46)muscleabout the size of your 47)fist • The heart is located in the 48)centerof your chest slightly to the 49)left • It's job is to pump 50)bloodand keep the blood 51)movingthroughout the body

  12. Circulatory System-Blood • The 52)bloodis an amazing substance that is constantly 53)flowingthrough the body. • Blood travels through 54)thousandsof miles of blood 55)vessels • A young person has about a 56)gallonof blood. • An adult has about 57) 5quarts

  13. Circulatory System-Red Blood Cells • 58)Redblood cells are responsible for carrying: • 59)Oxygen • 60)Carbon dioxide • These cells 61)pickup oxygen in the 62)lungsand transport it to all the body cells

  14. Circulatory System-Red Blood Cells • After delivering the 63)oxygento the cells it gathers up the carbon dioxide • It then 64)transportsit back to the 65)lungs • Its then 66)removedfrom the body when we 67)exhale • There are about 68)5million Red Blood Cells in 69) ONEdrop of blood.

  15. Circulatory System-White Blood Cells • These cells help the body fight off 70)germs • White Blood Cells 71)attackand destroy germs when they 72)enterthe body • When you have an 73)infectionyour body will produce more 74)WhiteBlood Cells to help fight it • 75)Antibioticcan help our White Blood Cells fight a 76)largescale infection

  16. Mind Map • Your Topic is Blood • Fill in all six bubbles • Make sure to use 4 words or less per bubble

  17. Circulatory System-Platelets These are blood cells that help 77)stopbleeding. When we 78)cutourselves we have broken a blood 79)vesseland the blood leaks out In order to 80)plugup the holes where the blood is leaking from the 81)plateletsstart to stick to the 82)openingof the damaged 83)bloodvessels

  18. Circulatory System-Platelets As the 84)plateletsstick to the opening of the 85)damagedvessel they attract 86)moreplatelets When the platelet 87)plugis completely formed the wound stops 88)bleeding

  19. Circulatory System-Plasma • Plasma is the 89)liquidpart of the 90)blood • Approximately 91)halfof your blood is made of 92)plasma • The plasma 93)carriesthe blood cells and other components throughout the 94)body • Plasma is made in the 95)liver

  20. Circulatory System-The Blood Vessels The Blood Vessels consists of: 96)Arteries 97)Capillaries 98)Veins • .

  21. Circulatory System-Blood Vessels • 99)Arteries are blood vessels that carry oxygen rich blood 100)AWAYfrom the heart. • Capillaries are 101)tinyblood vessels as thin or thinner than the hairs on your 102)head • Capillaries connect 103)arteriesto veins

  22. Circulatory System-Blood Vessels • Food substances(nutrients), oxygen and 105)wastespass in and out of your blood through the 106)capillarywalls 107)Veins carry blood back toward your 108)heart

  23. Mind Map • Your Topic is Blood Vessels • Fill in all six bubbles • Make sure to use 4 words or less per bubble • School House Rocks-Blood

  24. Respiratory System • The 109)primaryfunction of the respiratory system is to 110)supplythe blood with oxygen throughout the 111)body • It does this through 112)breathing

  25. Respiratory System • Breathing is so 113)vitalto life that it happens 114)automatically • Each day, you breathe about 115)20,000times • by the time you're 116)70years old you'll have taken at least 117)600million breaths

  26. Respiratory System • Respiration is achieved through: • 118)Mouth • 119)Nose • 120)Trachea(wind pipe) • 121)Lungs • 122)Diaphragm

  27. Mind Map • Your Topic is Respiratory System • Fill in all six bubbles • Make sure to use 4 words or less per bubble

  28. Respiratory System • At the 123)topof the respiratory system is the 124)nostrils • This is were we take 125)airin • It brings air into the 126)nose • Here it's warmed and 127)humidified

  29. Respiratory System • Tiny 128)hairscalled cilia protect the 129)nasalpassageways • These hairs 130)filterout dust and other 131)particlesthat enter the nose through the breathed 132)air

  30. Respiratory System • Air can also be taken in through the 133)mouth • The nasal cavity and the mouth meet at the 134)throat(pharynx) at the back of the 135)noseand mouth • The 136)pharynxis part of the 137)digestivesystem as well as the respiratory system because it carries 138)bothfood and air.

  31. Respiratory System • At the bottom of the pharynx a 139)pathwaydivides in two: • One for 140)food(the esophagus) • One for 141)air • The 142)larynx(voice box) is the uppermost partof the air-only 143)pipe • This short 144)tubecontains a pair of 145)vocalcords • They 146)vibrateto make sounds

  32. Respiratory System • The 147)windpipe(trachea) extends 148)downwardfrom the base of the 149)larynx • It is partly in the 150)neckand partly in the 151)chestcavity • The 152)wallsof the trachea are strengthened by stiff rings of 153)cartilageto keep it open

  33. Respiratory System • It is also lined with 154)cilia • It sweep 155)fluidsand foreign particles out of the 156)airwayso that they stay out of the 157)lungs

  34. Respiratory System • At the 158)bottomthe trachea divides into left and right 159)airtubes • These are called 160)bronchiand connect to the 161)lungs • Within the lungs you get an even 162)smallertubes called 163)bronchioles

  35. Respiratory System • Bronchioles 164)endin tiny air sacs called 165)alveoli • This is where the exchange of 166)oxygenand 167)carbon dioxide takes place • Each lung houses about 168)300-400million alveoli

  36. Respiratory System • The 169)lungsalso contain 170)elastictissues that allow them to inflate and 171)deflatewithout losing 172)shape • They are 173)encasedby a thin lining called the 174)pleura • The bronchial 175)treeis a network of: • Alveoli • 176)Bronchioles • Bronchi

  37. Respiratory System • The chest cavity is the 177)airtightbox that houses the: • Bronchial tree • 178)Lungs • Heart • The top and 179)sidesof the chest cavity is formed by the 180)ribsand attached muscles • The 181)bottomis formed by a large muscle called the 182)diaphragm

  38. Mind Map • Your Topic is Lungs • Fill in all six bubbles • Make sure to use 4 words or less per bubble.

  39. Respiratory System • The chest 183)wallsform a protective 184)cagearound the lungs and other 185)organswithin the chest

  40. Respiratory System • The 186)diaphragmseparates the chest from the 187)abdomen • It plays a lead role in 188)breathing • It moves 189)downwardwhen we breathe in enlarging the 190)chestcavity and pulling air in through the nose or 191)mouth

  41. Mind Map • Your Topic is diaphragm • Fill in four bubbles • Make sure to use 4 words or less per bubble • School House Rocks-Respiratory System

  42. Digestive System • The 192)digestivesystem is made up of the digestive tract(alimentary canal) • It is also home to other 193)abdominalorgans that play a part in digestion: • 194)Liver • 195)Pancreas

  43. Digestive System • The alimentary canal is the long tube of 196)organsincluding: • (197)Esophagus • (198)Stomach • (199)Intestines • An adult's digestive tract is about (200)30feet long.

  44. Digestive System • Digestion begins in the 201)mouth • It starts 202)beforefood reaches the 203)stomach • When we: • 204)See • 205)Smell • 206)Taste • The flow of 207)salivais set in motion by a brain 208)reflexthat's triggered when we sense food or think about 209)eating

  45. Digestive System • In response to this 210)sensorythe brain sends impulses through the nerves that control the 211)salivaryglands • It tells our 212)glandsto prepare for a 213)meal

  46. Digestive System • The 214)teethtear and chop the food • 215)Saliva moistens it for easy swallowing • 216)Amylase(digestive enzyme) breaks down the starches and 217)sugars(carbohydrates) in the food before it leaves the 218)mouth • 219)Musclemovements in the tongue and mouth, moves the food into the 220)throat(Swallowing)

  47. Digestive System • A 221)flexibleflap of tissue called the 222)epiglottis reflexively closes over the 223)windpipewhen we swallow to prevent 224)choking • Food travels 225)downa muscular tube in the chest called the 226)esophagus • Waves of muscle contractions called 227)peristalsis force food down through the esophagus to the 228)stomach

  48. Digestive System • At the 229)endof the esophagus is a 230)sphincter(muscular valve) • This valve allows food to 231)enterthe stomach and then squeezes 232)shutto keep food or fluid from flowing back up into the 233)esophagus • The stomach muscles 234)churnand mix the food with acids and 235)enzymes

  49. Digestive System • It 236)breaksit into much smaller 237)digestiblepieces • 238)Glandsin the stomach lining produce about 239)3quarts of digestive juices (acids) each 240)day

  50. Mind Map • Your Topic is Digestive System • Fill in four bubbles • Make sure to use 4 words or less per bubble

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