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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. |
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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. |
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Sternohyoid.
Origin, insertion, & action? |
origin: epiternum and the first costal cartilage.
insertion: hyoid bone. action: depresses the larynx. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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Logissimus Group.
origin, insterion, & action? |
origin: vertebra, transverse process.
insertion: vertebrae. action:extend vertebrae. |
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Splenius.
origin, insertion, & action? |
origin:spinout process of T3-T6.
insertion:posterior tubercles of transverse processes of C2-C4. action:bilateral contraction. |
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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. |
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Deltoid.
origin, insertion, & action? |
origin:occipital bone, cervical and thoracic vertebra.
insertion:moves the arm abduction along the frontal plane. action:rotates the scapula. |
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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. |
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Trapezius.
origin, insertion, & action? |
origin:occipital bone, vertebrae.
insertion:clavicle, scapula. action:rotates scapula. |
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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. |
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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. |
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latissiuus dorsi
origin, insertion, & action. |
origin:axillary border of scapula near inferior angle.
insertion:base of scapular spine. action:scapular depression and upward rotation. |
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biceps brachii
origin, insertion, & action. |
origin:long head- supraglenoid tubercle and glenhumeral.
insertion:radial tuberosity, bicipital aponeurois. |
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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. |
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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. |
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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. |
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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. |
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gracilis
origin, insertion, & action. |
origin: ischiopubic ramus.
insertion: tibia action: flexes, medially rotates, and adducts the hip, flexes the knee. |
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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. |
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quadriceps
origin, insertion, & action. |
origin: combined recturs femoris and vastus muscles.
insertion: tibial tuberosity action: knee extension, hip flexion. |