Human muscle Anatomy

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43 Terms

1
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occipitofrontalis

Pulls up eyebrows

<p>Pulls up eyebrows</p>
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Orbicularis oculi

Closes eye

<p>Closes eye</p>
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Orbicularis Oris

Pucker

<p>Pucker</p>
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Zygomaticus

Smile

<p>Smile</p>
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Buccinator

Compresses cheeks (fish face)

<p>Compresses cheeks (fish face)</p>
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Platysma

Frown

<p>Frown</p>
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Sternocleidomastoid

Pulls head to side

<p>Pulls head to side</p>
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Masseter

Chewing

<p>Chewing</p>
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Temporalis

Raises mandible

<p>Raises mandible</p>
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Occipitalis

Connects to frontalis to help raise the eyebrows

<p>Connects to frontalis to help raise the eyebrows</p>
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Deltoid

Prime mover of arm abduction

<p>Prime mover of arm abduction</p>
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Rhomboideus major

Adduction of scapula (moves scapula towards the vertebral column)

<p>Adduction of scapula (moves scapula towards the vertebral column)</p>
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Teres major

Adduction of humerus (stabilization of the head of the humerus in the glenoid cavity)

<p>Adduction of humerus (stabilization of the head of the humerus in the glenoid cavity)</p>
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Latissimus dorsi

Adduction of the humerus

<p>Adduction of the humerus</p>
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Trapezius

Extends the head (antagonist of the sternocleidomastoid) and elevates, adducts, and stabilizes the scapula

<p>Extends the head (antagonist of the sternocleidomastoid) and elevates, adducts, and stabilizes the scapula</p>
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Subscapularis

Internal rotation of the humerus

<p>Internal rotation of the humerus</p>
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Supraspinatus

Abducts the humerus at the shoulder

<p>Abducts the humerus at the shoulder</p>
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Infraspinatus

External rotation of the humerus

<p>External rotation of the humerus</p>
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Teres minor

Works with the infraspinatus in external rotation of the humerus

<p>Works with the infraspinatus in external rotation of the humerus</p>
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Pectoralis major

Adducts and flexes the humerus

<p>Adducts and flexes the humerus</p>
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Serratus anterior

Stabilizes and rotates the scapula (boxing muscle)

<p>Stabilizes and rotates the scapula (boxing muscle)</p>
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External intercostals

(Deep) raises ribcage to bring air into the lungs

<p>(Deep) raises ribcage to bring air into the lungs</p>
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Internal intercostals

(Deep) depresses the ribcage to move air out of the lungs

<p>(Deep) depresses the ribcage to move air out of the lungs</p>
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Rectus abdominus

Flexion of the vertebral column, compresses the abdominal contents

<p>Flexion of the vertebral column, compresses the abdominal contents</p>
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External and internal obliques

Flexion of the vertebral column, rotates the trunk and bends it laterally

<p>Flexion of the vertebral column, rotates the trunk and bends it laterally</p>
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Transversus abdominus

(Lateral/deepest) compresses the abdominal contents

<p>(Lateral/deepest) compresses the abdominal contents</p>
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Gluteus Maximus

Extension of the hip (climbing stairs, jumping)

<p>Extension of the hip (climbing stairs, jumping)</p>
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Gluteus Medius

Abduction of hip, holding the pelvis steady when walking

<p>Abduction of hip, holding the pelvis steady when walking</p>
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Tensor Faciae Latae

(Lateral) flexes and rotates the thigh medially, stabilization of the knee joint

<p>(Lateral) flexes and rotates the thigh medially, stabilization of the knee joint</p>
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Gracilis

Adducts the thigh, flexes knee joint

<p>Adducts the thigh, flexes knee joint</p>
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Iliopsoas

Made of two fused muscles: illiacus and psoas major, prime mover of hip flexion

<p>Made of two fused muscles: illiacus and psoas major, prime mover of hip flexion</p>
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Adductor longus

Adducts, rotates, and flexes the thigh

<p>Adducts, rotates, and flexes the thigh</p>
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Adductor Magnus

Adducts and extends the thigh

<p>Adducts and extends the thigh</p>
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Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

(Quad group)
All work together to extend the knee

<p>(Quad group) <br>All work together to extend the knee</p>
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Sartorius

Used to sit cross-legged, assists in flexing, abducting, and rotating the hip, flexion of knee

<p>Used to sit cross-legged, assists in flexing, abducting, and rotating the hip, flexion of knee</p>
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Semimembranosus
Semitendinosus
Biceps femoris

(Hamstring group) all work together to flex the knee

<p>(Hamstring group) all work together to flex the knee</p>
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Gastrocnemius

Prime mover for plantar flexion, "toe dancer's muscle"

<p>Prime mover for plantar flexion, "toe dancer's muscle"</p>
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Soleus

Synergist for plantar flexion

<p>Synergist for plantar flexion</p>
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Tibialis anterior

Dorsiflexes and inverts the foot

<p>Dorsiflexes and inverts the foot</p>
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Biceps brachii

Turns hand to face palm, and flexes arm and forearm

<p>Turns hand to face palm, and flexes arm and forearm</p>
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Triceps brachii

Extends forearm, adducts arm, extends shoulder

<p>Extends forearm, adducts arm, extends shoulder</p>
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Brachialis

Assists the biceps brachii in flexing the elbow

<p>Assists the biceps brachii in flexing the elbow</p>
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Flexor Carpi radialis

Flex and abduct the hand

<p>Flex and abduct the hand</p>