7: Axial and Appendicular Skeletal Muscles
- Page ID
- 124778
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)- 7.1: Introduction to Skeletal Muscle
- This page covers skeletal muscle anatomy and naming conventions, categorizing muscles into axial and appendicular groups. It details naming criteria including shape, size, location, number of origins, and action, supported by examples. Additionally, the page defines key terms such as origin and insertion in relation to muscle function and their interaction with the skeletal system in movement.
- 7.2: Muscles of the Head and Neck
- This page provides an overview of the muscles of the head and neck, emphasizing their functions, roles, and significance. It covers facial expression muscles, mastication muscles for chewing, and neck muscles for head movement. A table outlines specific muscles, such as the frontalis, orbicularis oculi, and sternocleidomastoid, detailing their locations and actions.
- 7.3: Muscles of the Axial Skeleton
- This page provides an overview of the musculature in the axial skeleton, detailing the functions of abdominal and thoracic muscles. It covers the abdominal muscles that contribute to movements like twisting and bending, and discusses thoracic muscles, including the diaphragm and intercostals, that assist in breathing. The summary also mentions back muscles that aid arm movements and stabilization, with an emphasis on the erector spinae's importance in controlling the vertebral column.
- 7.4: Muscles of the Upper Limb
- This page outlines the muscles of the upper limb involved in shoulder, elbow, wrist, and hand movements, with a focus on forearm muscles like biceps brachii and triceps brachii for flexion and extension. It categorizes wrist and hand muscles into anterior (flexors) and posterior (extensors), detailing key muscles such as flexor carpi radialis and extensor digitorum.
- 7.5: Muscles of the Hip and Lower Limb
- This page covers the anatomy and functions of hip and lower limb muscles, detailing their role in movement at joints such as the hip, knee, ankle, and foot. Key muscle groups include the iliopsoas, quadriceps, hamstrings, gluteus maximus, and tibialis anterior, each facilitating actions like flexion, extension, abduction, and adduction.
- 7.6: Questions and Review - Skeletal Muscles
- This page provides an overview of muscle identification and labeling in the body, emphasizing the head, neck, axial skeleton, and limbs. It includes exercises for matching muscle descriptions, labeling anatomical figures, and identifying common injection sites. Key topics cover muscles related to facial expressions and various movements, such as head tilting, chewing, and limb actions.