Table 9.2- Muscle TerminologyDon’t memorize but use that table as a referenceLever and Pulleys not on outline and didn’t talk about don’t need to knowStarting at 2:45 Q/A for muscles otherwise 3:30?Muscles of the PharynxConstrictors-Work togetherVagus nerveMedian raphe is the insertion and external occipital tuberanceAnterior neckSternocleidomastiodStarts at sternum and clavicle (origin)Ends at the mastoid (insertionsInnervated by assessory muscleContract on one side to move opposite wayContract both to flex head and neckHyoid musclesSupra- aboveStylo-, thyro-, mylo-Elevate the hyoidInnverated by cervical spinal nervesNormally insertion movesCranial Nerves and Muscles know themThe back musclessuperficialTrapezuis muscleFibers come in from the backMove the scapula and part of the pectoral girdleAssesory nerve (with sternocleidomastiod)Latissimi dorsiThick fascia comes off spine (lumbo something fasciaStarts at sacrumInserts at interal medial crest of the humerusThor something nerveDeep- adjusts vertebral column, head, neck and ribsInnervated by spinal nervesErector spinae musclesSpinalis longissimus illiocoastalis (medial to lateral)Innervated by spinal nerves (depending on place on vertebrae)Posterior aspect of the neckSplenius muscleMeans band-aidWorks with sternocleidomastiodCervical spinous process- originInsertion- mastoid process and superior cervical vertebraeDeep to trapeziusContract one side and move head to the same sideIf contract both extends neck and head (opp of sternocleiomastiod)Oblique musclesScaleneRespiration but elevating ribs (assessory)Anterior, middle, and posteriorInsert onto ribs (I and mid onto 1, post on the 2nd)Inneverated by cervical spinal nervesOrigin of transverse processes of cervical vertebraeIntercostal musclesIn between ribs on both sidesGo from above to below and pull up the rib below it (inspiration)Different muscle fibers depress ribs (expiration)Have bothDiaphragm- most important in respirationSeparate thoracic cavity from abdominopelvic cavitiyCentral tendonWhen contracts- increase the diameter of the thoracic cavity and compressing the contents of the abdominal cavityCervical spinal 3,4,and 5 keep the diaphragm aliveFronec nerveOblique and Rectus MusclesTendonis inscription- in between absRotate the vertebral columnCompress the contents of the abdomenThoracic and lumbar spinal nerve innverationExternal, internal, and transverse obliquesPelvisPerinealDeep and inferior but can be seen superiorly tooAt illiosacral jointControl anus and urethaUrogential triangle- urethra (and vagina in females)Anal triangle- anusPelvic diaphragmLevator ani- 2 musclesCoccygeus- 1 musclesThroughout urogential triangle and anal triangleDeepest (at pelvis outlet)Keeps contents in the pelvisUrogenital diaphragmCh 10 Axial Muscles 11/02/2010 19:14:00← Table 9.2- Muscle Terminology- Don’t memorize but use that table as a reference← Lever and Pulleys not on outline and didn’t talk about don’t need toknow← Starting at 2:45 Q/A for muscles otherwise 3:30?←← Muscles of the Pharynx- Constrictors-oWork togetheroVagus nerveoMedian raphe is the insertion and external occipital tuberance← Anterior neck- SternocleidomastiodoStarts at sternum and clavicle (origin)oEnds at the mastoid (insertionsoInnervated by assessory muscleoContract on one side to move opposite wayoContract both to flex head and neck- Hyoid musclesoSupra- aboveStylo-, thyro-, mylo-Elevate the hyoidInnverated by cervical spinal nerves← Normally insertion moves← Cranial Nerves and Muscles know them← The back muscles- superficialoTrapezuis muscleFibers come in from the backMove the scapula and part of the pectoral girdleAssesory nerve (with sternocleidomastiod)oLatissimi dorsiThick fascia comes off spine (lumbo something fasciaStarts at sacrumInserts at interal medial crest of the humerusThor something nerve- Deep- adjusts vertebral column, head, neck and ribsoInnervated by spinal nervesoErector spinae musclesSpinalis longissimus illiocoastalis (medial to lateral)Innervated by spinal nerves (depending on place on vertebrae)← Posterior aspect of the neck- Splenius muscleoMeans band-aidoWorks with sternocleidomastiodoCervical spinous process- originoInsertion- mastoid process and superior cervical vertebraeoDeep to trapeziusoContract one side and move head to the same sideoIf contract both extends neck and head (opp of sternocleiomastiod)← Oblique muscles- ScaleneoRespiration but elevating ribs (assessory)oAnterior, middle, and posterioroInsert onto ribs (I and mid onto 1, post on the 2nd)oInneverated by cervical spinal nervesoOrigin of transverse processes of cervical vertebrae- Intercostal musclesoIn between ribs on both sidesoGo from above to below and pull up the rib below it (inspiration)oDifferent muscle fibers depress ribs (expiration)oHave both- Diaphragm- most important in respirationoSeparate thoracic cavity from abdominopelvic cavitiyoCentral tendonoWhen contracts- increase the diameter of the thoracic cavity and compressing the contents of the abdominal cavityoCervical spinal 3,4,and 5 keep the diaphragm aliveoFronec nerve← Oblique and Rectus Muscles- Tendonis inscription- in between abs- Rotate the vertebral column- Compress the contents of the abdomen - Thoracic and lumbar spinal nerve innveration- External, internal, and transverse obliques← Pelvis- Perineal - Deep and inferior but can be seen superiorly too- At illiosacral joint- Control anus and uretha - Urogential triangle- urethra (and vagina in females)- Anal triangle- anus- Pelvic diaphragmoLevator ani- 2 musclesoCoccygeus- 1 musclesoThroughout urogential triangle and anal triangleoDeepest (at pelvis outlet)oKeeps contents in the pelvis- Urogenital diaphragm←11/02/2010 19:14:00←11/02/2010