Systems, Support, and Movement CHAPTER NEW CHAPTER Systems, Support, and Movement the BIG idea The human body is made up of systems that work together to perform necessary functions. 1.1 The human body is complex. 1.2 The skeletal system provides support and protection. 1.3 The muscular system makes movement possible. CHAPTER OUTLINE CHAPTER RESOURCES

The human body is complex. 1.1 The human body is complex. You can think of the body as having five levels of organization: cells, tissues, organs, organ systems, and the whole organism itself. The different systems of the human body work together to maintain homeostasis. tissue organ organ system Organism (human) Cells (cardiac muscle cells) Tissue (cardiac muscle) Organ (heart) Organ system (circulatory system) 1 2 3 4 5 homeostasis CHAPTER RESOURCES SIMULATION Explore the different systems in the human body. SECTION OUTLINE

1.1 tissue The human body is complex. organ A group of similar cells that are organized to do a specific job. organ system homeostasis CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.1 organ The human body is complex. tissue organ organ A structure in a plant or an animal that is made up of different tissues working together to perform a particular function. organ system homeostasis CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.1 organ system The human body is complex. tissue organ system organ A group of organs that together perform a function that helps the body meet its needs for energy and materials. organ system homeostasis CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.1 homeostasis The human body is complex. tissue homeostasis organ A condition needed for health and functioning in which an organism or cell maintains a relatively stable internal environment. organ system homeostasis CHAPTER RESOURCES KEY CONCEPT SUMMARY

The skeletal system provides support and protection. 1.2 The skeletal system provides support and protection. Bones are living tissue. The skeleton is the body's framework and has two main divisions, the axial skeleton and the appendicular skeleton. skeletal system compact bone Bones come together at joints. spongy bone axial skeleton appendicular skeleton Angular Movement (elbow) CHAPTER RESOURCES SECTION OUTLINE

The skeletal system provides support and protection. 1.2 The skeletal system provides support and protection. Bones are living tissue. The skeleton is the body's framework and has two main divisions, the axial skeleton and the appendicular skeleton. skeletal system compact bone Bones come together at joints. spongy bone axial skeleton appendicular skeleton SIMULATION Assemble a skeleton. CHAPTER RESOURCES SECTION OUTLINE

1.2 The skeletal system provides support and protection. skeletal system skeletal system compact bone spongy bone The framework of bones that supports the body, protects internal organs, and anchors all the body’s movement. axial skeleton appendicular skeleton CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.2 compact bone The skeletal system provides support and protection. spongy bone The tough, hard outer layer of a bone. axial skeleton appendicular skeleton CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.2 spongy bone The skeletal system provides support and protection. compact bone spongy bone Strong, lightweight tissue inside a bone. axial skeleton appendicular skeleton CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.2 The skeletal system provides support and protection. skeletal system axial skeleton compact bone spongy bone The central part of the skeleton, which includes the cranium, the spinal column, and the ribs. axial skeleton appendicular skeleton CHAPTER RESOURCES KEY CONCEPT SUMMARY

appendicular skeleton 1.2 The skeletal system provides support and protection. skeletal system appendicular skeleton compact bone spongy bone The bones of the skeleton that function to allow movement, such as arm and leg bones. axial skeleton appendicular skeleton CHAPTER RESOURCES KEY CONCEPT SUMMARY

The muscular system makes movement possible. 1.3 The muscular system makes movement possible. Types of muscle Function muscular system skeletal muscle skeletal muscle, voluntary moves bones, maintains posture, maintains body temperature voluntary muscle smooth muscle smooth muscle, involuntary moves internal organs, such as the intestines involuntary muscle cardiac muscle cardiac muscle, involuntary pumps blood throughout the body CHAPTER RESOURCES SECTION OUTLINE

1.3 muscular system The muscular system makes movement possible. skeletal muscle The muscles of the body that, together with the skeletal system, function to produce movement. voluntary muscle smooth muscle involuntary muscle cardiac muscle CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.3 skeletal muscle The muscular system makes movement possible. A muscle that attaches to the skeleton. voluntary muscle smooth muscle involuntary muscle cardiac muscle CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.3 voluntary muscle The muscular system makes movement possible. skeletal muscle A muscle that can be moved at will. voluntary muscle smooth muscle involuntary muscle cardiac muscle CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.3 smooth muscle The muscular system makes movement possible. skeletal muscle Muscle that performs involuntary movement and is found inside certain organs, such as the stomach. voluntary muscle smooth muscle involuntary muscle cardiac muscle CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.3 involuntary muscle The muscular system makes movement possible. skeletal muscle A muscle that moves without conscious control. voluntary muscle smooth muscle involuntary muscle cardiac muscle CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.3 cardiac muscle The muscular system makes movement possible. skeletal muscle The muscle that makes up the heart. voluntary muscle smooth muscle involuntary muscle cardiac muscle CHAPTER RESOURCES KEY CONCEPT SUMMARY

1.1 The human body is complex. I. The human body is complex. tissue A. The body has cells, tissues, and organs. organ 1. Cells organ system 2. Tissues homeostasis 3. Organs 4. Organ Systems B. The body’s systems interact with one another. CHAPTER RESOURCES KEY CONCEPT SUMMARY

The skeletal system provides support and protection. 1.2 The skeletal system provides support and protection. II. The skeletal system provides support and protection. skeletal system A. Bones are living tissue. compact bone 1. Two Types of Bone Tissue spongy bone 2. Marrow and Blood Cells axial skeleton B. The skeleton is the body’s framework. appendicular skeleton 1. The Axial Skeleton 2. The Appendicular Skeleton C. The skeleton changes as the body develops and ages. CHAPTER RESOURCES D. Joints connect parts of the skeletal system. KEY CONCEPT SUMMARY

The muscular system makes movement possible. 1.3 The muscular system makes movement possible. III. The muscular system makes movement possible. muscular system A. Muscles perform important functions. skeletal muscle 1. Movement 2. Maintaining Body Temperature voluntary muscle 3. Maintaining Posture smooth muscle B. Your body has different types of muscle. involuntary muscle 1. Skeletal Muscle cardiac muscle 2. Smooth Muscle 3. Cardiac Muscle C. Skeletal muscles and tendons allow bones to move. CHAPTER RESOURCES D. Muscles grow and heal. KEY CONCEPT SUMMARY

Image Gallery Click on the icons to see a larger image or animation. CHAPTER HOME Image Gallery Click on the icons to see a larger image or animation. SIMULATION Explore the different systems in the human body. SIMULATION Assemble a skeleton.

Image Gallery 1 5 2 3 4 CHAPTER HOME Cells (cardiac muscle cells) Organism (human) 2 3 4 Tissue (cardiac muscle) Organ (heart) Organ system (circulatory system) BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

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