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

A

Prime mover of arm extension

Q

Infraspinatus

A

Stabilizes shoulder/lateral rotation of humerus

Q

Deltoid

A

Prime mover of arm abduction

Q

Triceps brachii

A

Forearm/elbow extensor

Q

Biceps brachii

A

Flexes forearm and supinates hand

Q

Brachialis

A

Flexes forearm/no role in supination

Q

Brachioradialis

A

Flexes forearm/no role in supination

Q

Tensor fasciae latae

A

Abducts thigh/ “at ease” stance

Q

Gluteus Medius

A

Abducts thigh “at ease” stance

Q

Gluteus Maximus

A

Extends hip / thigh

Used fir climbing stairs

Q

Quadriceps

Rectus femoris

A

Extends knee

Flexes thigh at hip

Q

Quadriceps

Vastus lateralis

A

Extends and stabilizes knee

Q

Quadriceps

Vastus medialis

A

Extends knee/stabilizes patella

Q

Quadriceps

Vastus indermedius

A

Extends knee

Q

Hamstrings

Biceps femoris

A

Flexes knee/extends thigh

Q

Hamstrings

Semimembranosus

A

Flexes knee/extends thigh

Q

Hamstrings

Semitendinosus

A

Flexes knee/extends thigh

Q

Sartorius

A

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

Q

Adductor group

Adductor magnus

A

Adducts, flexes, rotates thigh

Q

Adductor group

Adductor longus

A

Adducts, flexes, rotates thigh

Q

Adductor brevis

A

Adducts, flexes, rotates thigh

Q

Gracilis

A

Adducts thigh/flexes and rotates leg

Q

Tibialis anterior

A

Dorsiflexes foot

Q

Gastrocnemius

A

Plantar flexes foot

Q

Soleus

A

Plantar flexes foot

Q

Fibularis longus

A

Plantar flex and everts foot: keeps foot on the ground