Human Biology

http://www.ck12.org Chapter 1. Human Biology 1.43 Peripheral Nervous System Outline the divisions of the peripheral nervous sys ...

1.43. Peripheral Nervous System http://www.ck12.org FIGURE 1.77 The blue lines in this drawing represent nerves of the periphera ...

http://www.ck12.org Chapter 1. Human Biology FIGURE 1.78 The central nervous system interprets messages from sense organs and in ...

1.43. Peripheral Nervous System http://www.ck12.org of the brain receives and interprets information from each sense organ. For ...

http://www.ck12.org Chapter 1. Human Biology Theparasympathetic divisioncontrols internal organs and glands during the rest of ...

1.43. Peripheral Nervous System http://www.ck12.org The peripheral nervous system is divided into the sensory and motor divisio ...

http://www.ck12.org Chapter 1. Human Biology 1.44 Human Vision Describe how humans see and explain why vision is important. Ho ...

1.44. Human Vision http://www.ck12.org FIGURE 1.82 All eyes are on the ball in this basketball game. Think about how we use the ...

http://www.ck12.org Chapter 1. Human Biology FIGURE 1.83 This boy is wearing 3-D glasses; when you look at objects and people in ...

1.44. Human Vision http://www.ck12.org FIGURE 1.84 Humans with color vision see the apples on this tree; the bright red color of ...

http://www.ck12.org Chapter 1. Human Biology FIGURE 1.86 With color vision, you can tell which cher- ries in this picture are ri ...

1.45. How the Eye Works http://www.ck12.org 1.45 How the Eye Works Explain how the eye works to produce images. How do you see ...

http://www.ck12.org Chapter 1. Human Biology FIGURE 1.87 The human eye is a complex structure that senses light; the light passe ...

1.45. How the Eye Works http://www.ck12.org Summary Light entering the eye is focused by the lens on the retina, which sends me ...

http://www.ck12.org Chapter 1. Human Biology 1.46 Vision Correction Explain how lenses correct vision problems. Why get an eye ...

1.46. Vision Correction http://www.ck12.org FIGURE 1.89 On the left, you can see how a person with normal vision sees two boys. ...

http://www.ck12.org Chapter 1. Human Biology Practice Use the resources below to answer the questions that follow. Myopia, Hype ...

1.47. Hearing and Balance http://www.ck12.org 1.47 Hearing and Balance Explain how the ears hear and help maintain balance. Fe ...

http://www.ck12.org Chapter 1. Human Biology FIGURE 1.91 Sound waves travel through the air in all directions away from a sound, ...

1.47. Hearing and Balance http://www.ck12.org No doubt you’ve been warned that listening to loud music or other loud sounds can ...