Muscles Flashcards

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27 Terms

1
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Masseter

Elevates mandible

<p>Elevates mandible</p>
2
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Sternocleidomastoid (O/I)

O: Manubrium & Clavicle I: Mastoid process of temporal bone

Pulls head to one side , flexes neck, or elevates sternum

<p>O: Manubrium &amp; Clavicle I: Mastoid process of temporal bone</p><p>Pulls head to one side , flexes neck, or elevates sternum</p>
3
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Trapezius

Rotates scapula

<p>Rotates scapula</p>
4
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Pectoralis Major (O/I)

Flexes adducts, and rotates humerus, or adducts arm

O: Clavicle I: Greater Tubercule of Humerus

<p>Flexes adducts, and rotates humerus, or adducts arm</p><p>O: Clavicle I: Greater Tubercule of Humerus</p>
5
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Latissimus Dorsi

Extends and adducts the arm and rotates humerus inwardly, or pulls the shoulder downward and back

<p>Extends and adducts the arm and rotates humerus inwardly, or pulls the shoulder downward and back</p>
6
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Deltoid

Abducts upper arm

<p>Abducts upper arm</p>
7
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Biceps Brachii (O/I)

O: Coracoid Process I: Radial Tuberosity

Flexes arm at elbow

<p>O: Coracoid Process I: Radial Tuberosity</p><p>Flexes arm at elbow</p>
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Triceps brachii

Extends arm at elbow

<p>Extends arm at elbow</p>
9
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External Obliques

Tenses abdominal wall and compresses abdominal contents

<p>Tenses abdominal wall and compresses abdominal contents</p>
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Internal Obliques

Tenses abdominal wall and compresses abdominal contents

<p>Tenses abdominal wall and compresses abdominal contents</p>
11
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Rectus Abdominus

Tenses abdominal wall and compresses abdominal contents and flexes the vertebral column.

<p>Tenses abdominal wall and compresses abdominal contents and flexes the vertebral column. </p>
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Gluteus Maximus

Extends leg at hip

<p>Extends leg at hip</p>
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Gluteus Medius

Abducts thigh

<p>Abducts thigh</p>
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Adductor (leg) muscles

Adducts thigh

<p>Adducts thigh</p>
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Gracilis

Adducts thigh and flexes leg at knee

<p>Adducts thigh and flexes leg at knee</p>
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Biceps Femoris (O/I)

O: Ischial Tuberosity I: Head of Fibula & Lateral Tibial Condyle Flexes leg at knee; extends thigh at hip

<p>O: Ischial Tuberosity I: Head of Fibula &amp; Lateral Tibial Condyle Flexes leg at knee; extends thigh at hip</p>
17
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Semitendinosus

Flexes leg at knee

<p>Flexes leg at knee</p>
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Semimembranosus

Flexes leg at knee

<p>Flexes leg at knee</p>
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Sartorius

Flexes leg at knee, abducts thigh, and rotates thigh laterally (allows you to cross your leg)

<p>Flexes leg at knee, abducts thigh, and rotates thigh laterally (allows you to cross your leg)</p>
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Rectus femoris

Extends leg at knee

<p>Extends leg at knee</p>
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Vastus lateralis

Extends leg at knee

<p>Extends leg at knee</p>
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Vastus medialis

Extends leg at knee

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Vastus intermedius

Extends leg at knee

<p>Extends leg at knee</p>
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Tibialis Anterior

Dorsiflexion and inversion of foot

<p>Dorsiflexion and inversion of foot</p>
25
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Gastrocnemius (O/I)

O: Medial/Lateral femoral condyles I: Posterior Calcaneus

Plantar flexion of the foot and flexion of leg at knee

<p>O: Medial/Lateral femoral condyles I: Posterior Calcaneus</p><p>Plantar flexion of the foot and flexion of leg at knee</p>
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Soleus

Plantar flexion of the foot and ankle

<p>Plantar flexion of the foot and ankle</p>
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Erector Spinae Group

Keep spine erect, and extends spine

<p>Keep spine erect, and extends spine</p>