Spring_2022_A_P_221_Muscle_Chart_-_Copy

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Southern University and A&M College *

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231

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Anatomy

Date

Apr 3, 2024

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docx

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7

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Anatomy & Physiology 221 Muscle Chart Directions: After completing the Muscle Visible Body utilizing the chart template below, you will identify the specific muscles groups for each section of the chart and type in all required information for each. Number each muscle and if the muscle is located on the right and left side, please signify that by writing R&L. This assignment requires the use of your lab manual. This is not a hard assignment, just time consuming. The document is editable. Head Face Muscle(s) Occipitalis, Auricularis anterior ,Frontalis Temporalis Mentalis, Orbicularis oculi, Orbicularis oris, Risorius, Depressor anguli oris, Zygomaticus major, Buccinato Cartilage Hyaline cartilage Hyaline cartilage Tissue Composition Combination of skeletal muscle fibers, tendons, and associated connective tissue Combination of skeletal muscle fibers, tendons, and associated connective tissue Action movement of the head and neck, chewing and swallowing, speech, facial expressions, and of the eyes control facial expression. Location Back of the neck Eyes, lips, Mouth, cheek, mouth, eye, chin, mouth Origin temporal & frontal bones, occipital bone, & mastoid process Zygomatic bone Motor region of maxilla and mandible Insertion Mandible, Skin around lips skin of eyebrow tissue of eyelid tissue of eyelid skin of chin skin and muscle at angle of mouth angle and ramus of mandible
Neck Throat Muscle Sternocleidomastoid, Scalene muscles (anterior, middle, and posterior), Splenius capitis, Longus colli, Levator scapulae Pharyngeal constrictor muscles (superior, middle, and inferior) Cartilage Thyroid cartilage, cricoid cartilage, hyaline cartilage of the cervical vertebrae Thyroid cartilage, cricoid cartilage, arytenoid cartilages, hyaline cartilage of the pharynx Tissue Composition Primarily skeletal muscle fibers with associated connective tissue Smooth muscle fibers with some skeletal muscle in the superior constrictor Action Flexes and rotates the head Constricts the pharynx during swallowing Location Runs obliquely across each side of the neck Surrounding the pharynx Origin Manubrium of the sternum and medial portion of the clavicle Various attachment points along the skull base, hyoid bone, and thyroid and cricoid cartilages Insertion Mastoid process of the temporal bone and superior nuchal line of the occipital bone Pharyngeal raphe and posterior midline of the pharynx
Back Chest Muscle Trapezius, Rhomboids (major and minor), Erector spinae (iliocostalis, longissimus, spinalis), Teres major, Teres minor, Infraspinatus, supraspinatus Subscapularis Pectoralis major, Pectoralis minor, Serratus anterior, Subclavius, External intercostal muscles, Internal intercostal muscles Cartilage Hyaline cartilage of the thoracic and lumbar vertebrae, costal cartilages Costal cartilages, hyaline cartilage of the ribs, sternum Tissue Composition Large, flat skeletal muscle with associated connective tissue Large, fan-shaped skeletal muscle with associated connective tissue Action Extends, adducts, and internally rotates the arm at the shoulder joint Flexes, adducts, and medially rotates the arm at the shoulder joint Location Backside of body Frontside of body Origin Spinous processes of the lower thoracic and all lumbar vertebrae, iliac crest, thoracolumbar fascia, and lower ribs Clavicle, sternum, and cartilage of the first six ribs Insertion Intertubercular groove of the humerus Crest of the greater tubercle of the humerus
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