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Lecture Notes for BIOL 2401 - Hum Anat/Phys I (Core 030) at Wharton County Junior College (WCJC)

Notes Information

Material Type:Note
Professor:Staff
Class:BIOL 2401 - Hum Anat/Phys I (Core 030)
Subject:Biology
University:Wharton County Junior College
Term:Spring Semester 2009
Keywords:
  • Rectus Femoris
  • Xiphoid Process
  • Sternocleidomastoid
  • Dorsiflexion
  • Quadriceps Femoris
  • Mastoid Process
  • Coronoid Process
  • Pubic Symphysis
  • Rectus Abdominus
  • Thoracic Vertebrae
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Sample Document Text

Origin, Insertion and Action of Major Muscles Muscles Origin Insertion Action masseter zygomatic bone (zygomatic arch) posterior 1/3 mandible elevates mandible temporalis temporal bone (temporal fossa) coronoid process of mandible elevates mandible digastric inferior mandible, temporal hyoid bone depresses mandible Neck Mus c le s sternocleidomastoid manubrium and medial clavicle mastoid process of temporal bone single: rotate head to opposite side; both: flex head Abdom i na l Musc le s rectus abdominus pubic symphysis xiphoid process, costal cartilages of ribs 5-7 flexes vertebral column, compresses abdomen trapezius occipital bone, dorsal spinous processes (thoracic vertebrae) clavicle, scapula (acromion process, spine) extends head; elevates scapula latissimus dorsi dorsal spine (T7 to sacrum), iliac crest humerus (proximal 1/3) extends arm; adducts and medially rotates arm rhomboids (major & minor) dorsal spinous proce...

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