ITEM 1.
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PCV
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Site and Muscle: The site for PCV injection is mostly done in the anterolateral thigh for infants, particularly the vastus lateralis muscle.
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Origin: Greater trochanter and linea aspera of femur.
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Insertion: Patella via quadriceps tendon and then tibial tuberosity via patellar ligament.
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Action: All four heads extend leg at knee joint; rectus femoris muscle acting alone also flexes thigh at hip joint.
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Location: Proximal portion of the lower limbs; Lateral, anterior portion of the thigh.
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Penta
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Site and Muscle: The site for pentavalent vaccine is mostly done in the anterolateral thigh for infants, particularly the vastus lateralis muscle.
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Origin: Greater trochanter and linea aspera of femur.
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Insertion: Patella via quadriceps tendon and then tibial tuberosity via patellar ligament.
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Action: All four heads extend leg at knee joint; rectus femoris muscle acting alone also flexes thigh at hip joint.
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Location: Proximal portion of the lower limbs; Lateral, anterior portion of the thigh.
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Note: Intramuscular injections for infants are usually done on the thigh area.
ITEM 2.
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IM Injection (Flu)
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Site and Muscle: The site for IM injection is mostly done in the arm for adults, particularly the deltoid muscle.
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Origin: Acromial extremity of clavicle (anterior fibers), acromion of scapula (lateral fibers), and spine of scapula (posterior fibers).
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Insertion: Deltoid tuberosity of humerus.
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Action: Lateral fibers abduct arm at shoulder joint; anterior fibers flex and medially rotate arm at shoulder joint; posterior fibers extend and laterally rotate arm at shoulder joint.
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Location: Proximal portion of the upper limbs; Lateral, superficial portion of the arm.
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References:
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Tortora, G. J., & Derrickson, B. (2017). Principles of anatomy and physiology (15th ed.). Wiley Custom Learning Solutions.