Unit 2: Support and Movement
- Page ID
- 106038
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)In Unit 2, students explore the skin, the largest organ of the body, and examine the body’s skeletal and muscular systems, following a traditional sequence of topics. This unit is the first to walk students through specific systems of the body, and as it does so, it maintains a focus on homeostasis as well as those diseases and conditions that can disrupt it.
- Chapter 5: The Integumentary System
- 5.0: Introduction
- 5.1: Layers of the Skin
- 5.1.1: Student Notebook Assignment
- 5.2: Accessory Structures of the Skin
- 5.2.1: Student Notebook Assignment
- 5.3: Functions of the Integumentary System
- 5.3.1: Student Notebook Assignment
- 5.4: Diseases, Disorders, and Injuries of the Integumentary System
- 5.4.1: Student Notebook Assignment
- 5.5: Key Terms
- 5.6: Interactive Link Questions
- 5.7: Critical Thinking Questions
- Chapter 6: Bone Tissue and the Skeletal System
- The human skeleton is the internal framework of the body. It is composed of 270 bones at birth and decreases to 206 bones by adulthood after some bones have fused together. The human skeleton serves six major functions: support, movement, protection, production of blood cells, storage of ions, and endocrine regulation.
- 6.0: Introduction
- 6.1: The Functions of the Skeletal System
- 6.1.1: Student Notebook Assignment
- 6.2: Bone Classification
- 6.2.1: Student Notebook Assignment
- 6.3: Bone Structure
- 6.3.1: Student Notebook Assignment
- 6.4: Bone Formation and Development
- 6.4.1: Student Notebook Assignment
- 6.5: Fractures - Bone Repair
- 6.5.1: Student Notebook Assignment
- 6.6: Exercise, Nutrition, Hormones, and Bone Tissue
- 6.6.1: Student Notebook Assignment
- 6.7: Calcium Homeostasis - Interactions of the Skeletal System and Other Organ Systems
- 6.7.1: Student Notebook Assignment
- 6.8: Key Terms
- Chapter 7: Axial Skeleton
- The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. It consists of 80 bones and is composed of six parts: the skull bones, the ossicles of the middle ear, the hyoid bone, the rib cage, sternum and the vertebral column.
- 7.0: Introduction
- 7.1: Divisions of the Skeletal System
- 7.1.1: Student Notebook Assignment
- 7.2: The Skull
- 7.2.1: Student Notebook Assignment
- 7.3: The Vertebral Column
- 7.3.1: Student Notebook Assignment
- 7.4: The Thoracic Cage
- 7.4.1: Student Notebook Assignment
- 7.5: Embryonic Development of the Axial Skeleton
- 7.5.1: Student Notebook Assignment
- 7.6: Key Terms
- 7.7: Interactive Link Questions
- Chapter 8: The Appendicular Skeleton
- Your skeleton provides the internal supporting structure of the body. The adult axial skeleton consists of 80 bones that form the head and body trunk. Attached to this are the limbs, whose 126 bones constitute the appendicular skeleton. These bones are divided into two groups: the bones that are located within the limbs themselves, and the girdle bones that attach the limbs to the axial skeleton. The bones of the shoulder region form the pectoral girdle.
- 8.0: Introduction
- 8.1: The Pectoral Girdle
- 8.1.1: Student Notebook Assignment
- 8.2: Bones of the Upper Limb
- 8.2.1: Student Notebook Assignment
- 8.3: The Pelvic Girdle and Pelvis
- 8.3.1: Student Notebook Assignment
- 8.4: Bones of the Lower Limb
- 8.4.1: Student Notebook Assignment
- 8.5: Development of the Appendicular Skeleton
- 8.5.1: Student Notebook Assignment
- 8.6: Key Terms
- 8.7: Interactive Link Questions
- Chapter 9: Joints
- 9.0: Introduction
- 9.1: Classification of Joints
- 9.1.1: Student Notebook Assignment
- 9.2: Fibrous Joints
- 9.2.1: Student Notebook Assignment
- 9.3: Cartilaginous Joints
- 9.3.1: Student Notebook Assignment
- 9.4: Synovial Joints
- 9.4.1: Student Notebook Assignment
- 9.5: Types of Body Movements
- 9.5.1: Student Notebook Assignment
- 9.6: Anatomy of Selected Synovial Joints
- 9.6.1: Student Notebook Assignment
- 9.7: Development of Joints
- 9.7.1: Student Notebook Assignment
- 9.8: Key Terms
- 9.9: Interactive Link Questions
- Chapter 10: Muscle Tissue
- Muscle tissue is a soft tissue that composes muscles in animal bodies, and gives rise to muscles' ability to contract. This is opposed to other components or tissues in muscle such as tendons or perimysium. Muscle tissue varies with function and location in the body. In mammals the three types are: skeletal or striated muscle; smooth or non-striated muscle; and cardiac muscle, which is sometimes known as semi-striated.
- 10.0: Introduction
- 10.1: Overview of Muscle Tissues
- 10.1.1: Student Notebook Assignment
- 10.2: Skeletal Muscle
- 10.2.1: Student Notebook Assignment
- 10.3: Muscle Fiber Contraction and Relaxation
- 10.3.1: Student Notebook Assignment
- 10.4: Nervous System Control of Muscle Tension
- 10.4.1: Student Notebook Assignment
- 10.5: Types of Muscle Fibers
- 10.5.1: Student Notebook Assignment
- 10.6: Exercise and Muscle Performance
- 10.6.1: Student Notebook Assignment
- 10.7: Cardiac Muscle Tissue
- 10.7.1: Student Notebook Assignment
- 10.8: Smooth Muscle
- 10.8.1: Student Notebook Assignment
- 10.9: Development and Regeneration of Muscle Tissue
- 10.9.1: Student Notebook Assignment
- 10.10: Key Terms
- 10.11: Interactive Link Questions
- Chapter 11: The Muscular System
- 11.0: Introduction
- 11.1: Interactions of Skeletal Muscles, Their Fascicle Arrangement, and Their Lever Systems
- 11.1.1: Student Notebook Assignment
- 11.2: Naming Skeletal Muscle
- 11.2.1: Student Notebook Assignment
- 11.3: Axial Muscles of the Head, Neck, and Back
- 11.3.1: Student Notebook Assignment
- 11.4: Axial Muscles of the Abdominal Wall and Thorax
- 11.4.1: Student Notebook Assignment
- 11.5: Muscles of the Pectoral Girdle and Upper Limbs
- 11.5.1: Student Notebook Assignment
- 11.6: Appendicular Muscles of the Pelvic Girdle and Lower Limbs
- 11.6.1: Student Notebook Assignment
- 11.7: Key Terms


