Muscles Flashcards by Hannah Brahm

Q

Epicranius

A

Raises eyebrow

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Q

Orbicularis oculi

A

Used in blinking and squinting

Closes eye

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Q

Orbicularis oris

A

Kissing muscle

Closed mouth

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Q

Buccinator

A

Used to suck in cheeks

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Q

Zygomaticus

A

Used in smiling

draws corners of mouth upwards

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Q

Temporalis

A

Closes jaw

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Q

Masseter

A

Prime mover to raise mandible

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Q

Sternocleidomastoid

A

Rotates head, flexes head

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Q

Trapezius

A

Shrugging shoulders

Extends head, neck

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Q

External intercostals

A

Elevate rib cage

aids in inspiration

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Q

Internal intercostals

A

Depresses rib cage

Aids in forced expiration

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Q

Rectus abdominis

A

Flexes and rotates vertebral column

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Q

External oblique

A

Aids in muscles of back in trunk rotation and lateral flexion

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Q

Transverse abdominous

A

Compresses abdomen

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Q

Serratus anterior

A

Abducts and raises arm

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Q

Pectoralis major

A

Prime movie of arm flexion

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Q

Latissimus dorsi

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A

Prime mover of arm extension

Q

Infraspinatus

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A

Stabilizes shoulder/lateral rotation of humerus

Q

Deltoid

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A

Prime mover of arm abduction

Q

Triceps brachii

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A

Forearm/elbow extensor

Q

Biceps brachii

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A

Flexes forearm and supinates hand

Q

Brachialis

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A

Flexes forearm/no role in supination

Q

Brachioradialis

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A

Flexes forearm/no role in supination

Q

Tensor fasciae latae

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A

Abducts thigh/ “at ease” stance

Gluteus Medius

Abducts thigh “at ease” stance

Gluteus Maximus

Extends hip / thigh | Used fir climbing stairs

Quadriceps | Rectus femoris

Extends knee | Flexes thigh at hip

Quadriceps | Vastus lateralis

Extends and stabilizes knee

Quadriceps | Vastus medialis

Extends knee/stabilizes patella

Quadriceps | Vastus indermedius

Extends knee

Hamstrings | Biceps femoris

Flexes knee/extends thigh

Hamstrings | Semimembranosus

Flexes knee/extends thigh

Hamstrings | Semitendinosus

Flexes knee/extends thigh

Sartorius

Flexes knee/flexes, abducts, rotates thigh (tailor’s muscle)

Adductor group | Adductor magnus

Adducts, flexes, rotates thigh

Adductor group | Adductor longus

Adducts, flexes, rotates thigh

Adductor brevis

Adducts, flexes, rotates thigh

Gracilis

Adducts thigh/flexes and rotates leg

Tibialis anterior

Dorsiflexes foot

Gastrocnemius

Plantar flexes foot

Soleus

Plantar flexes foot

Fibularis longus

Plantar flex and everts foot: keeps foot on the ground