anatomy

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42 Terms

1
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Masseter

Elevates and protracts mandible.

<p>Elevates and protracts mandible.</p>
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Digastric

Depresses mandible and elevates hyoid bone during chewing and swallowing.

<p>Depresses mandible and elevates hyoid bone during chewing and swallowing.</p>
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Sternocleidomastoid

Laterally flexes neck to the same side, rotates head to the opposite side, and pulls head forward and down.

<p>Laterally flexes neck to the same side, rotates head to the opposite side, and pulls head forward and down.</p>
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Diaphragm

Upon inhalation, contracts and flattens, enlarging the chest cavity.

<p>Upon inhalation, contracts and flattens, enlarging the chest cavity.</p>
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Levator Scapulae

Only elevates scapula.

<p>Only elevates scapula.</p>
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Erector Spinae

Extends and laterally flexes the back, maintains correct posture and curvature of the spinal column.

<p>Extends and laterally flexes the back, maintains correct posture and curvature of the spinal column.</p>
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Latissimus Dorsi

Extends shoulder, depresses and retracts shoulder, adducts and rotates arm medially.

<p>Extends shoulder, depresses and retracts shoulder, adducts and rotates arm medially.</p>
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External Oblique

Compresses abdomen, flexes and rotates vertebral column.

<p>Compresses abdomen, flexes and rotates vertebral column.</p>
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Rectus Abdominis

Compresses abdomen, flexes vertebral column (does not rotate).

<p>Compresses abdomen, flexes vertebral column (does not rotate).</p>
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Trapezius

Rotates and retracts scapula. Superior portion elevates scapula, inferior portion depresses scapula.

<p>Rotates and retracts scapula. Superior portion elevates scapula, inferior portion depresses scapula.</p>
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Rhomboid Major

Retracts, elevates, and rotates scapula.

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Rhomboid Minor

Retracts and elevates scapula (does not rotate).

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Pectoralis Major

Flexes shoulder, adducts, and rotates arm medially.

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Pectoralis Minor

Depresses and protracts scapula, elevates ribs during forceful inhalation.

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Deltoid

Lateral portion abducts arm, anterior portion flexes shoulder, posterior portion extends shoulder.

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Supraspinatus

Abducts arm (moves away from midline).

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Infraspinatus

Rotates arm laterally.

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Subscapularis

Rotates arm medially.

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Teres Minor

Rotates arm laterally.

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Biceps Brachii

Flexes elbow, supinates forearm and hand.

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Brachioradialis

Flexes elbow.

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Triceps Brachii

Extends elbow.

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Flexor Carpi Ulnaris

Flexes wrist and adducts hand.

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Palmaris Longus

Flexes wrist.

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Flexor Carpi Radialis

Flexes wrist and abducts hand.

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Extensor Carpi Ulnaris

Extends wrist and adducts hand.

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Extensor Digiti Minimi

Extends the fifth digit at its metacarpophalangeal joint.

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Extensor Carpi Radialis Brevis + Longus

Extends wrist and abducts hand.

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Gluteus Maximus

Extends hip.

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Tensor Fascia Latae

Abducts thigh, flexes hip, and rotates thigh medially.

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Adductor Longus

Adducts thigh and flexes hip.

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Gracilis

Adducts thigh and flexes knee.

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Sartorius

Flexes knee and hip, abducts and rotates thigh laterally, and rotates leg medially.

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Rectus Femoris

Extends knee, flexes hip.

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Vastus Lateralis

Extends knee.

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Vastus Intermedius

Extends knee.

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Vastus Medialis

Extends knee.

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Biceps Femoris

Flexes knee, rotates leg laterally, and extends hip.

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Semimembranosus

Flexes knee, rotates leg medially, and extends hip.

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Tibialis Anterior

Dorsiflexion and inversion of foot.

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Gastrocnemius

Plantar flexion of foot, flexes knee.

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Soleus

Plantar flexion of foot.