1. Human Body Systems

2. Can you….
name all of the body systems?
tell what each system does?

3. Body System Rap

4. I can … identify the subsystems that make up the human body.
identify the parts and label the functions of the human body’s 8 systems.
explain how systems of the human body are interrelated and regulate the body’s internal environment.

5. How is the body organized?
Lesson 1

6. Cells Working Together
Body is made up of cells
75 trillion cells
Different body parts are made up of different cells
Cells depend on each other to keep the body running smoothly
Body processes can only happen within a particular temperature range (98.6) so the cells work together to make sure the body stays in that range.

7. Levels of Organization
Each type of cell performs certain activities or functions
Cells are organized by the activities they do
Cells that contract = muscle tissue
Cells that carry messages = nerve tissue
Two or more tissues working together = organ
Each organ in the body is part of an organ system

9. Wrapping it up
Create a flow chart that shows how the body is organized.
Include cells, tissues, organs, and organ systems.
Explain / define each component.

10. What systems help move body parts?
Lesson 2

11. I can … identify the subsystems that make up the human body.
identify the parts and label the functions of the human body’s 8 systems.
explain how systems of the human body are interrelated and regulate the body’s internal environment.

12. Skeletal System

13. Create diagram

14. Skeletal System Bones are made of living tissue and nonliving minerals
Bones have several functions:
Support body
Give you height
Protect organs
Form new blood cells
Store minerals

15. Skeletal System Adult body has 206 bones
22 in skull
33 in spine
27 in hand
26 in foot
Babies bones are made of cartilage which are then replaced by hard bone

16. Wrapping it up
Why do bones have several parts that vary in density?

17. Muscular System

18. Video hyperlinked to picture that identifies the 11 major muscle groups

19. Muscular System More than 600 muscles in your body
Make up 40-50% of your body weight
Muscles and the tissues that attach them to bones = muscular system

20. Muscular System Three types:
Cardiac muscle (heart) – able to contract repeatedly without getting tired
Smooth muscle (digestive system and blood vessels) – involuntary; control movements inside your body
Skeletal muscle (biceps, quads) – voluntary muscles that move your limbs

21. Keeping Muscles and Bones Healthy
Muscles can get injured
Ways to stay healthy:
Eat healthy foods
Plenty of sleep
Exercise (warm up first and stretch after)

22. Wrapping it up
Why is it important to have voluntary and involuntary muscles?

23. How do systems control the body?
Lesson 3

24. I can … identify the subsystems that make up the human body.
identify the parts and label the functions of the human body’s 8 systems.
explain how systems of the human body are interrelated and regulate the body’s internal environment.

25. Nervous System

26. Nervous System
Parts:
Brain
Spinal cord
Nerves
Sense organs
Continually collects information from inside and outside your body
Functions:
Helps you speak, think, taste, hear, see

27. Nervous System How it works:
Nerve cells (neurons) pass messages throughout the body along the spinal cord
Dendrites get messages from other neurons and give them to the cell body
Axon moves messages away from that neuron to other nerve cells
Brain gets message and tells body how to react

28. Nervous System Motor nerves: carry signals from the brain to the body
Sensory nerves: carry information from the body to the brain

29. Reflexes
A response that happens automatically without the brain “thinking” about it
Protect the body from dangerous situations

30. Reflexes Ways to protect your nervous system: Avoid alcohol
Avoid drugs
Wear protective gear when playing sports
Wear seat belts in the car
Never dive into a shallow pool

31. Wrapping it up
Tell how a reflex action differs from other actions directed by the brain. Explain why this process is important in protecting the body.

32. Endocrine System

34. Endocrine System Helps balance what goes on in the body
Controls body growth and blood sugar levels
Made up of glands:
Gland – organ that makes chemicals
Glands release chemicals (hormones) into the blood to help control the body’s functions

37. Wrapping it up
One of the endocrine glands often is called the “master gland.” Which gland do you think that is”? Why?

38. How do systems transport materials?
Lesson 4

39. I can … identify the subsystems that make up the human body.
identify the parts and label the functions of the human body’s 8 systems.
explain how systems of the human body are interrelated and regulate the body’s internal environment.

40. Digestive System

41. Digestive System
Takes the food that you eat and changes it into a form cells can use
Parts:
Mouth
Esophagus
Stomach
Small intestine
Large intestine
Types:
Mechanical digestion – tearing, crushing, and mashing food (ex. Biting and chewing food)
Chemical digestion – chemicals (enzymes) break food down into nutrients to give us energy
Helper Parts:
- Liver
- Gallbladder
- Pancreas

43. Circulatory System

44. Circulatory System Parts:
Heart
Blood
blood vessels
Main job: move nutrients and other materials throughout your body through blood vessels to your cells

45. Circulatory System Heart is the size of your fist
Beats 70 times every minute

46. Circulatory System How it works:
Blood moves away from the heart through arteries (thick muscular tubes) and back to the heart through veins (large blood vessels)
Capillaries are the smallest blood vessel in your body – allow material to pass through their walls to other cells

47. Circulatory System Plasma – part of blood that is liquid
Mostly made of water, but has nutrients and waste products
Contains red blood cells, white blood cells, and platelets
Red blood cells – carry oxygen
White blood cells- attack germs
Platelets – pieces of cells formed in bone marrow that help blood clot to stop bleeding

48. Wrapping it up
Why does blood leave the heart in arteries and return in veins? Why not in the same structure?

49. Respiratory System

50. Respiratory System Parts:
Lungs
Nose
Trachea
Bronchial tubes
Job: take oxygen from the air and get rid of CO2 from your body

51. Respiratory System How it works:
Cells use oxygen to release energy from nutrients = produces carbon dioxide
CO2 is a waste that must be removed from your cells
Blood carries oxygen to your cells and takes away the CO2

52. Wrapping it up
Why is it harder to breathe when you have a cold? Explain.

53. How do systems keep the body healthy?
Lesson 5

54. I can … identify the subsystems that make up the human body.
identify the parts and label the functions of the human body’s 8 systems.
explain how systems of the human body are interrelated and regulate the body’s internal environment.

55. Immune System Pathogens – organisms that make you sick
Found everywhere

56. Immune System How to fight pathogens:
Prevent them from coming into the body
Skin
Tears
Mucus in nose, mouth, and throat
Kill them once in your body
Saliva and stomach juices
Extra blood flows to the pathogen so white blood cells can fight it
Antibodies – chemicals that kill certain pathogens if they come into your body again
Body reflexes
Sneezing
Coughing

58. Wrapping it up
How would life be different if we didn’t have an immune system? Explain.

59. Systems Working Together
Body systems are involved in everything we do and ALWAYS work together
Important to take care of your body
Start at young age
Most adult health problems start when younger

61. Mr. Immunity

62. Wrapping it up
Why is it important to develop a healthy lifestyle at a young age?

63. Body System Rap