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Lab Test 3 Muscles

Buccinator Whistling & Sucking
Risorius Draws corner of lip laterally
Masseter Closes Jaw
Orbicularis Oris Kissing & Whistling
Orbicularis Oculi Blinking & Squinting
Zygomaticus Smiling
Depressor Anguli Oris Frowning
Mentalis Portrudes lower lip
Frontalis Raises eyebrows, Wrinkles forehead
Occipitalis Pulls scalp posteriorly
Temporalis Closes jaw
Triceps Brachii Extends forearm
*Biceps Brachii Flexes/Supinates forearm
*Brachialis Flexes forearm
Iliopsoas Flexes thigh
Tensor Fasciae Latae Flexes/ABducts thigh
*Sartorius Flexes/Rotates/ABducts thigh
*Gracilis Flexes knee, ADDucts thigh
*Adductor Longus (between Sartorius & Gracilis) ADDucts/Flexes thigh
*Rectus Femoris (midline of thigh) a: Flexes hip/Extends lower leg i: patella and tibial tuberosity
*Vastus Medialis a: Extends knee i: patella and tibial tuberosity
*Vastus Lateralis (injection site) a: Extends knee i: patella and tibial tuberosity
Vastus Intermedius a: Extends knee i: patella and tibial tuberosity
Digastric Elevates and steadies hyoid bone for Speech/Swallowing
Sternocleidomastoid (SCM) a: Flex head (together), Rotate head to opposite shoulder (alone) o: Manubrium and Medial clavicle i: Mastoid process and Superior Nuchal Line of Occipital bone
*Pectoralis Major & Minor Flex arm, draw ribcage up
Serratus Anterior Boxer's Muscle
*External & Internal Intercostals Breathing
Diaphragm Breathing
*Rectus Abdominus Flex/Rotate lumbar region when walking
*External & Interal Oblique Trunk rotation
Transverse Abdominus Compress abdominal contents
*Brachioradialis Flex forearm
*Flexor Carpi Radialis Flex wrist, ABducts hand
*Flexor Carpi Ulnaris Flex wrist, ADDucts hand
*Palmaris Longus Flex wrist
Extensor Digitorum Extends/ABducts fingers, Extends wrist
Pronator Teres Pronates forearm
Adductor Magnus (posterior thigh) ADDucts/Flexes thigh
*Semitendinosus (middle) Extends thigh, Flex knee
*Semimembranosus (medial) Extends thigh, Flex knee
*Biceps Femoris (lateral) Extends thigh, Flex knee
*Trapezius Raises/Retracts/Rotates/Stabilizes scapula
*Latissimus Dorsi ADDucts arm
Levator Scapulae Elevates/ADDucts scapula
Erector Spinae Extends back
Rhomboid Major & Minor Retract scapula
*Deltoid (injection site) a: ABducts arm o: lateral third of clavicle; acromion & spine of scapula i: deltoid tuberosity of humerus
Teres Major Rotate/ADDuct arm
Teres Minor a: Rotate/ADDuct arm o: lateral border of dorsal scapular surface i: greater tubercle of humerus (below infraspinous insertion)
Supraspinatus a: prevents downward dislocation of humerus o: supraspinous fossa of scapula i: superior part of greater tubercle of humerus
Infraspinatus a: Rotate humerus o: infraspinous fossa of scapula i: greater tubercle of humerus (behind supraspinatus insertion)
Subscapularis a: Rotates humerus o: subscapular foss of scapula i: lesser tubercle of humerus
*Gluteus Maximus Extends thigh
Gluteus Medius (injection site) a: ABducts/Rotates thigh o: lateral surface of ilium i: greater trochanter of femur
Extensor Digitorum Longus Extends toes
*Gastrocnemius (medial & lateral) a: Plantar flexes, ADDucts/Inverts foot i: posterior calcaneus via Achille's tendon
*Soleus (under Gastrocnemius) a: plantar flexes, ADDucts/Inverts foot i: posterior calcaneus via Achille's tendon
Tibialis Anterior Dorsiflex/Inverts foot
Fibularis Longus Plantar flexes, Everts foot
Created by: skibunnie41



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