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Chapter One. A&P in Perspective  So what is Biology? ◦ Biology is defined as the “study of life” ◦ All living things exhibit the same basic functions.

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Presentation on theme: "Chapter One. A&P in Perspective  So what is Biology? ◦ Biology is defined as the “study of life” ◦ All living things exhibit the same basic functions."— Presentation transcript:

1 Chapter One

2 A&P in Perspective

3  So what is Biology? ◦ Biology is defined as the “study of life” ◦ All living things exhibit the same basic functions

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5 Anatomy, which means “cutting open”, is the study of internal and external structures of the body and the physical relationship among body parts. Anatomy can be divided into Gross and Microscopic Anatomy

6  Surface anatomy  Regional anatomy  Systemic anatomy

7  Cytology  Histology

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9  Functions of the human body are complex and much more difficult to examine than most anatomical structures.

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12 Review Questions

13 a. Responsiveness b. Adaptability c. Development d. Differentiation What term refers to changes in an organism’s behavior, capability, or structure in response to a changing environment?

14 a. gross anatomy b. microscopic anatomy c. physiology d. form and function Visual examination of a specimen’s cells and tissues is an example of ______________.

15 Levels of Organization

16  The apparent complexity of the human body represents multiple levels of organization.  Each level is more complex than the previous level, but all can be broken down into similar components  The levels of organization are: ◦ Chemical level ◦ Cellular level ◦ Tissue level ◦ Organ level ◦ Organ System level ◦ Organism level

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26 Animation: Organ Systems  Be sure you can identify the major organs of each of the 11 organ systems.  Be sure you can identify the major functions of each of the 11 organ systems.

27 Review Questions

28 a. Organ b. System c. Tissue d. Culture A group of cells working together for a specific function make up which of the following levels of organization?

29 a. Skeletal muscle b. Connective tissue c. Smooth muscle d. Epithelial tissue What tissue is found in the walls of blood vessels and the digestive tract, and functions in maintaining blood pressure and propelling contents?

30 Homeostasis

31  Homeostasis is the presence of a stable internal environment.  Maintaining homeostasis is absolutely vital to an organisms survival; failure to maintain homeostasis leads to illness, disease, or death.  Homeostasis regulation requires three basic components: a receptor, a control center, and an effector.

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36 Review Questions

37 a. Effector b. Responder c. Receptor d. Sensor What part of a homeostatic mechanism senses an environmental stimulus?

38 a. Homeostatic b. Physiological c. Positive d. Negative What type of feedback provides a response that is opposite to the original stimulus?

39 a. Increasing heart rate with activity b. Sweating when hot c. Forming a blood clot when bleeding d. Eating when hungry Which of the following is an example of positive feedback?

40 Anatomical Terms

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56 Review Questions

57 Click Here For Drill

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