1. The Muscular System
Unit 1 Lesson 2 pgs

2. RED SLIDE: These are notes that are very important and should be recorded or highlighted in your science book.
You will see an image of a page in your book when it is necessary to highlight!
BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly.

3. RED SLIDE: These are notes that are very important and should be recorded in your science journal.
BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly.
Copyright © 2010 Ryan P. Murphy

4. Keep an eye out for “The-Owl” and raise your hand as soon as you see her.
She’ll be hiding somewhere in the slideshow

5. “Hoot, Hoot” “Good Luck!”
Keep an eye out for “The-Owl” and raise your hand as soon as you see her.
She’ll be hiding somewhere in the slideshow
“Hoot, Hoot”
“Good Luck!”

6. New Area of Focus: The Muscular System.

7. Movement is carried out by the muscular and skeletal system working together.

8. Muscles turn chemical energy into kinetic energy or the energy of motion.

9. Muscles turn chemical energy into kinetic energy or the energy of motion.

10. Muscles turn chemical energy into kinetic energy or the energy of motion.

11. Muscles turn chemical energy into kinetic energy or the energy of motion.

12. Muscles turn chemical energy into kinetic energy or the energy of motion.

13. Muscles turn chemical energy into kinetic energy or the energy of motion.

14. Muscles pump blood through your body, enable you to breathe, hold you upright, and allow you to move.
The Muscular System is mostly made of muscles that allow your body to move and be flexible.
Some muscles move material around inside your body
Motion
Pg. 22

15. Video! Muscular and Skeletal System working together.

16. How many muscles are in the human body?
F.) Nobody Knows.

17. answer is… How many muscles are in the human body? A.) 650,000,000
F.) Nobody Knows.
answer is…

18. answer is… How many muscles are in the human body? A.) 650,000,000
F.) Nobody Knows.
answer is…

19. Blood vessels are also woven into the muscles

20. Blood vessels are also woven into the muscles

21. Blood vessels are also woven into the muscles to…

22. Blood vessels are also woven into the muscles to… bring fresh blood with sugar and oxygen.

23. Blood vessels are also woven into the muscles to… bring fresh blood with sugar and oxygen and to remove waste.

24. Blood vessels are also woven into the muscles to… bring fresh blood with sugar and oxygen and to remove waste.
Waste
Carbon Dioxide
Water
Latic Acid
After intense workouts

25. Waste Muscular, Circulatory, Respiratory System
Blood vessels are also woven into the muscles to… bring fresh blood with sugar and oxygen and to remove waste.
Waste
Muscular, Circulatory,
Respiratory System
Carbon Dioxide
Water
Latic Acid
After intense workouts

26. Upon stimulation by an action potential from your brain

27. Upon stimulation by an action potential from your brain and nerves,

28. Upon stimulation by an action potential from your brain and nerves, skeletal muscles perform a coordinated contraction by shortening.

29. Upon stimulation by an action potential from your brain and nerves, skeletal muscles perform a coordinated contraction by shortening.
Motor Neuron
Muscle Fiber

30. Muscle is the tissue that contracts and relaxes, making movement possible
Pg. 22

31. Your body has 3 kinds of muscle tissue: skeletal, smooth, and cardiac
Pg. 22

32. Smooth Muscle Found in internal organs
Pg. 22
Smooth Muscle
Found in internal organs
Helps move material through the body
Found in blood vessels to help move blood
Found in digestive system to help move food
Smooth muscle is involuntary
Spindle shaped

33. Cardiac Muscle Tissue that makes up the heart
Pg. 23
Cardiac Muscle
Tissue that makes up the heart
Contains lots of mitochondria to supply energy to the cells
Do not stop moving your entire lifetime!
Push blood out of the heart and pump it around the body
Long, thin, and branched
Involuntary

34. Skeletal Muscle Attached to your bones and allows you to move
Pg. 23
Skeletal Muscle
Attached to your bones and allows you to move
You have control over these muscles (voluntary)
Most work in pairs: as one contracts, the other relaxes to allow movement

35. An example would be the contraction of the biceps and a relaxation of the triceps.

36. An example would be the contraction of the biceps and a relaxation of the triceps.
Copyright © 2010 Ryan P. Murphy

37. An example would be the contraction of the biceps and a relaxation of the triceps.

38. An example would be the contraction of the biceps and a relaxation of the triceps.
This produces a bend at the elbow.
Bicep
Tricep

39. An example would be the contraction of the biceps and a relaxation of the triceps.
This produces a bend at the elbow.
Bicep
Tricep

40. An example would be the contraction of the biceps and a relaxation of the triceps.
This produces a bend at the elbow.
The contraction of the triceps and relaxation of the biceps produces the effect of straightening the arm.
Bicep
Tricep

41. Bicep
Tricep

42. Bicep
Tricep

43. Pg. 23
The tough strand of tissue that connects a muscle to a bone is called a tendon.

44. Caution! Graphic Tendons connect muscles to the bones.
Picture below is reattachment of Achilles tendon.
Caution!
Graphic

45. Tendons connect muscles to the bones.
Picture below is reattachment of Achilles tendon.

46. Ligament Tendon Bones are held together by connective tissues.
Ligaments: Bones to bones
Tendons: Bones to muscles
Ligament
Tendon

47. Ligament Tendon Skeletal and Muscular
Bones are held together by connective tissues.
Ligaments: Bones to bones
Tendons: Bones to muscles
Ligament
Tendon
Skeletal and Muscular

48. Review! The human body contains 3 types of muscular tissue.
Skeletal Muscle
Smooth Muscle
Cardiac Muscle C A B

49. Review! The human body contains 3 types of muscular tissue.
Skeletal Muscle
Smooth Muscle
Cardiac Muscle C A B

50. Review! The human body contains 3 types of muscular tissue.
Skeletal Muscle
Smooth Muscle
Cardiac Muscle C A B

51. Review! The human body contains 3 types of muscular tissue.
Skeletal Muscle
Smooth Muscle
Cardiac Muscle C A B

52. Review! The human body contains 3 types of muscular tissue.
Skeletal Muscle
Smooth Muscle
Cardiac Muscle C A B

53. Review! The human body contains 3 types of muscular tissue.
Skeletal Muscle
Smooth Muscle
Cardiac Muscle C A B

54. Review! The human body contains 3 types of muscular tissue.
Skeletal Muscle
Smooth Muscle
Cardiac Muscle C A B

55. Muscle can also be voluntary and involuntary.
Copyright © 2010 Ryan P. Murphy

56. Muscle can also be voluntary and involuntary.
Voluntary muscles you can control.
Copyright © 2010 Ryan P. Murphy

57. Muscle can also be voluntary and involuntary.
Voluntary muscles you can control.
Copyright © 2010 Ryan P. Murphy

58. Muscle can also be voluntary and involuntary.
Voluntary muscles you can control.
“I love you.”
Copyright © 2010 Ryan P. Murphy

59. Muscle can also be voluntary and involuntary.
Voluntary muscles you can control.
Involuntary muscles are ones that you can’t control.

60. Muscle can also be voluntary and involuntary.
You are able to control the movement of skeletal muscle, so it is called voluntary muscle
You are not able to control the movement of smooth and cardiac muscle, so they are called involuntary muscles.

61. Muscle can also be voluntary and involuntary.
Voluntary muscles you can control.
Involuntary muscles are ones that you can’t control.

62. Muscular and Nervous System
Muscle can also be voluntary and involuntary.
Voluntary muscles you can control.
Involuntary muscles are ones that you can’t control.
Muscular and
Nervous System

63. Which is voluntary and which involuntary?B
Diaphragm

64. Which is voluntary and which involuntary?B
Diaphragm

65. A B Voluntary You have Control over
Which is voluntary and which involuntary? A B
Voluntary
You have
Control over
Diaphragm

66. A B Voluntary You have Control over
Which is voluntary and which involuntary? A B
Voluntary
You have
Control over
Diaphragm

67. A B Involuntary Voluntary You have Control over
Which is voluntary and which involuntary? A B
Involuntary
Voluntary
You have
Control over
Diaphragm

68. A B Involuntary Voluntary You have Control over
Which is voluntary and which involuntary? A B
Involuntary
Voluntary
You have
Control over
Diaphragm

69. A B Involuntary Voluntary You have Control over
Which is voluntary and which involuntary? A B
Involuntary
Voluntary
Involuntary muscles are muscles that that can contract without any conscious control.
You have
Control over
Diaphragm

70. A B Which is voluntary and which involuntary? Not actual pupil
dilation

71. Which is voluntary and which involuntary?B

72. A B Involuntary Which is voluntary and which involuntary?
Pupil Dilation

73. A B and blinking Involuntary
Which is voluntary and which involuntary? A B
and blinking
Involuntary
Pupil Dilation

74. A B and blinking Involuntary
Which is voluntary and which involuntary? A B
and blinking
Involuntary
Pupil Dilation

75. A B Voluntary and blinking Involuntary
Which is voluntary and which involuntary? A B
Voluntary
and blinking
Involuntary
Pupil Dilation

76. Activity! Pupil Dilation
Turn the lights off and shut the blinds for a few minutes.
Find a partner and look into their eyes.
Turn on the lights and watch the pupils dilate.
This is contraction occurs all of the time without you having to really think about it.

77. Activity! Pupil Dilation
Turn the lights off and shut the blinds for a few minutes.
Find a partner and look into their eyes.
Turn on the lights and watch the pupils dilate.
This is contraction occurs all of the time without you having to really think about it.

78. Which is voluntary and which involuntary?B

79. Which is voluntary and which involuntary?B

80. Which is voluntary and which involuntary?B
Voluntary

81. Which is voluntary and which involuntary?B
Voluntary

82. A B Voluntary Involuntary
Which is voluntary and which involuntary? A B
Voluntary
Involuntary
Esophagus
Intestines
Stomach

83. Which is skeletal muscle, smooth muscle, and cardiac muscle?
Involuntary
Involuntary

84. Which is skeletal muscle, smooth muscle, and cardiac muscle?
Involuntary
Involuntary

85. Which is skeletal muscle, smooth muscle, and cardiac muscle?
Involuntary
Involuntary

86. Which is skeletal muscle, smooth muscle, and cardiac muscle?
Involuntary
Involuntary

87. Which is skeletal muscle, smooth muscle, and cardiac muscle?
Involuntary
Involuntary

88. Which is skeletal muscle, smooth muscle, and cardiac muscle?
Involuntary
Involuntary

89. Which is skeletal muscle, smooth muscle, and cardiac muscle?
Involuntary
Involuntary

92. Bicep

95. Tricep

96. Tricep

97. Tricep
Pectoralis

101. Tongue
Made of 8 muscles
(4 attached to bone)
(4 not attached to bone)