Upper Limb

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19 Terms

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Frontalis

Origin: Galea

Insertion: Subcutaneous tissue at eyebrows

Function: raises the eyebrows

<p><strong>Origin:</strong> Galea</p><p><strong>Insertion:</strong> Subcutaneous tissue at eyebrows</p><p><strong>Function:</strong> raises the eyebrows</p>

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Occipitalis

Origin: Occipital bone

Insertion: Galea

Function: retracts scalp

<p><strong>Origin:</strong> Occipital bone</p><p><strong>Insertion:</strong> Galea</p><p><strong>Function:</strong> retracts scalp</p>

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Orbicularis Oculi

Origin: Medial orbit wall

Insertion: Eyelid

Function: allows you to close your eyes

<p><strong>Origin:</strong> Medial orbit wall</p><p><strong>Insertion:</strong> Eyelid </p><p><strong>Function:</strong> allows you to close your eyes</p>

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Orbicularis Oris

Origin: Corners of the mouth

Insertion: Onto the lips

Function: Kissing muscle

<p><strong>Origin:</strong> Corners of the mouth</p><p><strong>Insertion:</strong> Onto the lips</p><p><strong>Function:</strong> Kissing muscle</p>

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Zygomatic Major

Origin: Zygomatic bone

Insertion: Corners of the mouth

Function: Allows you to smile

<p><strong>Origin: </strong>Zygomatic bone</p><p><strong>Insertion:</strong> Corners of the mouth</p><p><strong>Function:</strong> Allows you to smile</p>

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Buccinator

Origin: Maxilla and mandible

Insertion: Orbicularis oris

Function: Pulls cheeks inward

<p><strong>Origin:</strong> Maxilla and mandible</p><p><strong>Insertion:</strong> Orbicularis oris </p><p><strong>Function:</strong> Pulls cheeks inward</p>

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Temporalis

Origin: Temporal fossa

Insertion: Mandible

Function: Closes jaw/chewing muscle

<p><strong>Origin:</strong> Temporal fossa</p><p><strong>Insertion:</strong> Mandible</p><p><strong>Function:</strong> Closes jaw/chewing muscle</p>

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Masseter

Origin: zygomatic arch

Insertion: Mandible

Function: Closes jaw/chewing muscle

<p><strong>Origin:</strong> zygomatic arch</p><p><strong>Insertion:</strong> Mandible</p><p><strong>Function:</strong> Closes jaw/chewing muscle</p>

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Gluteus Maximus

Origin: ilium, sacrum, and coccyx

Insertion: femur and tibia

Function: extends hip

<p><strong>Origin:</strong> ilium, sacrum, and coccyx </p><p><strong>Insertion:</strong> femur and tibia </p><p><strong>Function:</strong> extends hip</p>

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Gluteus Medius

Origin: illium

Insertion: femur

Function: Hip abduction

<p><strong>Origin:</strong> illium</p><p><strong>Insertion</strong>: femur</p><p><strong>Function:</strong> Hip abduction</p>

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Trapezius

Origin: Occipital bone, C7 and thoracic vertebrae

Insertion: Scapula and clavicle

Function: Extension, lateral flexion, elevation, and depression (of the head)

<p><strong>Origin: </strong>Occipital bone, C7 and thoracic vertebrae</p><p><strong>Insertion</strong>: Scapula and clavicle</p><p><strong>Function: </strong>Extension, lateral flexion, elevation, and depression (of the head)</p>

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Sternocleidomastoid

Origin: Sternum and clavicle

Insertion: Mastoid process

Function: Contraction, flex head/neck

<p><strong>Origin: </strong>Sternum and clavicle</p><p><strong>Insertion</strong>: Mastoid process</p><p><strong>Function: </strong>Contraction, flex head/neck </p>

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Erector Spinae

Function: Erect posture, extend and laterally flex spine

<p></p><p><strong>Function: </strong>Erect posture, extend and laterally flex spine</p>

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External Obliques

Origin: Ribs

Insertion: Ilium and linea alba

Function: Flex and rotate trunk

<p><strong>Origin: </strong>Ribs</p><p><strong>Insertion</strong>: Ilium and linea alba</p><p><strong>Function: </strong>Flex and rotate trunk</p>

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Internal Obliques

Origin: illium

Insertion: linea alba and lower ribs

Function: flex and rotate trunk

<p><strong>Origin: </strong>illium</p><p><strong>Insertion</strong>: linea alba and lower ribs</p><p><strong>Function: </strong>flex and rotate trunk</p>

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Rectus Abdominis

Origin: Pubis

Insertion: Ribs and xiphoid process

Function: Flex and rotate trunk

<p><strong>Origin: </strong>Pubis</p><p><strong>Insertion</strong>: Ribs and xiphoid process</p><p><strong>Function: </strong>Flex and rotate trunk</p>

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Transversus abdominis

Origin: ribs and illium

Insertion: Linea alba

Function: Compress abdomen

<p><strong>Origin: </strong>ribs and illium</p><p><strong>Insertion</strong>: Linea alba</p><p><strong>Function: </strong>Compress abdomen</p>

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Intercostals

Origin: Ribs

Insertion: Ribs

Function: Moves rib cage

<p><strong>Origin: </strong>Ribs</p><p><strong>Insertion</strong>: Ribs</p><p><strong>Function: </strong>Moves rib cage</p>

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Diaphragm

Origin: Xiphoid process, lumbar vertebrae, and margin of lower ribs

Insertion: Central tendon in middle of muscle

Function: Contracts and expands thoracic cavity

<p><strong>Origin: </strong>Xiphoid process, lumbar vertebrae, and margin of lower ribs</p><p><strong>Insertion</strong>: Central tendon in middle of muscle</p><p><strong>Function: </strong>Contracts and expands thoracic cavity</p>