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26 Cards in this Set

  • Front
  • Back
Masseter.
Origin, insertion, & action?
origin: A thick, quadrilateral muscle, superficial and deep.
insertion: of the two heads.
action: Elevation and protraction of the mandible.
Sternomastoid.
Origin, insertion, & action?
origin: It is thick and narrow at its central parts.
insertion: passes across the side of the neck.
action: draws head towards the ipsilateral shoulder.
Sternohyoid.
Origin, insertion, & action?
origin: epiternum and the first costal cartilage.
insertion: hyoid bone.
action: depresses the larynx.
Mylohyoid.
Origin, insertion, & action?
origin: in the surface of mandible off the myiohyoid line.
insertion: mastoid process of temperal bone.
action: elevates the hyoid bone.
external intercostal.
origin, insertion, & action?
origin: interior border of the ribs.
insertion: borders the ribs, passing down and back.
action: fix intercostal spaces during respiration.
internal intercostal.
origin, insertion, & action?
origin: inferior border of ribs as far back as posterior angles.
insertion: superior border of ribs below, passing obliquely downwards and backwards.
action:fix intercostal spaces during respiration. Aids forced inspiration by elevating ribs.
external oblique.
origin, insertion, & action?
origin:from the fifth to twelfth ribs.
insertion:into the anterior lateral.
action:nerve to the muscle and its spinal segment.
internal oblique.
origin, insertion, & action?
origin:intermediate of the abdomen.
insertion:abs.
action:reduce the volume of the chest cavity during exhalation. Contraction rotates and side-bends the trunk by pulling the rib cage and midline towards the hip and lower back, of the same side.
Transverse abdominus.
origin, insertion, & action?
origin:inguinal ligament, iliac crest, cartilage of last 5-6 ribs, ilium.
insertion:Linea able and pubic crest.
action:compresses abdominal contents.
Logissimus Group.
origin, insterion, & action?
origin: vertebra, transverse process.
insertion: vertebrae.
action:extend vertebrae.
Splenius.
origin, insertion, & action?
origin:spinout process of T3-T6.
insertion:posterior tubercles of transverse processes of C2-C4.
action:bilateral contraction.
Pectoralis.
origin, insertion, & action?
origin:outer surface of ribs 2-5 or 3-5 or 6.
insertion:medial aspect of coracoid process of the scapula.
action:adducts humerus medially rotates humerus. Flexion of the arm from extension.
Deltoid.
origin, insertion, & action?
origin:occipital bone, cervical and thoracic vertebra.
insertion:moves the arm abduction along the frontal plane.
action:rotates the scapula.
Serratus Anterior.
origin, insertion, & action?
origin:by nine or ten slips from either the first to ninth ribs or te first to eight rib.
insertion:along the medial border of the scapula between the superior and inferior angles.
action:pull the scapula forward around the thorax, which is essential for anteversion of the arm.
Trapezius.
origin, insertion, & action?
origin:occipital bone, vertebrae.
insertion:clavicle, scapula.
action:rotates scapula.
Rhomboideus.
origin, inseriton,& action?
origin:spinous process of 2nd and 5th thoracic vertebrae.
insertion:medial border of the scapula from spine to inferior angle.
action:helps hold the scapula into the ribcage.
suspraspinatus
origin, insertion, & action.
origin:arises from the suspraspinatus fossa, a shallow depression in the body of the scapular above its spine.
insertion:into the most superior facet of the great tubercle of the humerus.
action:contraction of the supraspinatus muscle leads to adduction of the arm at the shoulder joint.
latissiuus dorsi
origin, insertion, & action.
origin:axillary border of scapula near inferior angle.
insertion:base of scapular spine.
action:scapular depression and upward rotation.
biceps brachii
origin, insertion, & action.
origin:long head- supraglenoid tubercle and glenhumeral.
insertion:radial tuberosity, bicipital aponeurois.
brachialis
origin, insertion, & action.
origin: lower half of the front of the humerus, near the insertion of the deltoid muscle.
insertion: below to within 2.5 cm of the margin of the articular surface of the humerous at the elbow joint.
action:doesnt insert on the radius, and therefore cannot participate in pronation and supination of the forearm.
triceps brachii
origin, insertion, & action.
origin: long hear arises from the infraglenoid tubercle of the scapula.
insertion: converge to a single tendone to insert into the olecranon process of the ulna some research indicates that there may be more than one tendon.
action: it fixate the elbow joint when the forearm and hand are used for fine movements.
gluteus
origin, insertion, & action.
origin: gluteal surface of ilium, lumbar fascia, sacrum, sacrtobuerous ligament.
insertion: gluteal tuberosity of the femur, iliotibial tract.
action: external rotation and extension of the hip joint, supports the extended knee through the iliotibial tract, chief antigravity muscle in sitting.
adductor femoris
origin, insertion, & action.
origin: anterior inferior iliac spine and the exterior surface of the bony, ridge which forms the iliac portion of the acetabulum.
insertion: inserts into the patellar tendon as one of the four quadriceps muscles.
action: knee extension, hip flexion.
gracilis
origin, insertion, & action.
origin: ischiopubic ramus.
insertion: tibia
action: flexes, medially rotates, and adducts the hip, flexes the knee.
sartorius
origin, insertion, & action.
origin: inferior to the anterior superior iliac spine.
insertion: anteromedial surface of the upper tibia in the pes anserinus.
action: flexion, abduction, and lateral rotation of the hip, flexion of the knee.
quadriceps
origin, insertion, & action.
origin: combined recturs femoris and vastus muscles.
insertion: tibial tuberosity
action: knee extension, hip flexion.