Chapter 6B Muscle Functions Flashcards by Anna Lewis | Brainscape

Q

Orbicularis oculi

A

Blinks and closes eye

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Q

Frontalis

A

Raises eyebrows

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Q

Orbicularis oris

A

Closes and protrudes lips

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Q

Buccinator

A

Compresses cheek

Holds food between teeth during chewing

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Q

Zygomaticus

A

Raises corner of mouth

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Q

Masseter

A

Closes jaw

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Q

Temporalis

A

Closes jaw

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Q

Platysma

A

Tenses skin of neck

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Q

Sternocleidomastoid

A

Flexes neck

Laterally rotates head

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Q

Pectoralis major

A

Adducts and flexes humerus

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Q

Intercostal muscles

A

Depresses ribs

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Q

Rectus abdominis

A

Flexes vertebral column

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Q

External oblique

A

Flexes and rotates vertebral column

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Q

Internal oblique

A

Flexes and rotates vertebral column

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Q

Transversus abdominis

A

Compresses abdomen

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Q

Trapezius

A

Raises, retracts, and rotates scapula

Q

Latissimus Dorsi

A

Extends and adducts humerus

Q

Erector Spinae

A

Extends and laterally flexes spine

Q

Quadratus Lumborum

A

Extends and flexes spine laterally

Q

Deltoid

A

Abducts humerus

Q

Biceps branchii

A

Flexes elbow

Supinate a forearm

Q

Brachialis

A

Flexes elbow

Q

Brachioradialis

A

Flexes forearm

Q

Triceps branchii

A

Extends elbow

Q

Gluteus Maximus

A

Extends hip

Q

Gluteus medius

A

Abducts thigh

Steadies pelvis during walking

Q

Iliopsosa

A

Flexes hip

Q

Adductor muscles

A

Adducts and medially rotates thigh

Q

Hamstring group

A

Flexes knee

Extends hip

Q

Tibialis anterior

A

Dorsiflexes and inverts foot

Q

Extensor digitorum longus

A

Extends toes

Q

Fibularis muscles

A

Plantar flexes and everts foot

Q

Gastrocnemius

A

Plantar flexes foot

Flexes knee

Q

Soleus

A

Plantar flexes foot