A&P Muscles1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Buccinator | Retracts angle of mouth; flattens cheek |
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| Fronatalis- (occipitofronatlis) | Moves scalp; elevates eyebrows |
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| Masseter | Elevates and protracts mandible; involved in excursion |
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| Occipitalis | Elevation of Eyebrows |
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| Orbicularis oculi | closes eyelids |
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| Orbicularis oris | closes lips |
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| Platysma | Depresses lower lip; wrinkles skin of neck and upper chest | Deltoid & Pectoralis major | Mandible
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| Sternocleidomastoid | "One Contracting alone:laterally flexes head and neck to same side and rotates the head and neck to opposite side Both Contracting together: flexes neck" | Manubrium & clavicle | Mastoid process
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| Temporalis | Elevates and protracts mandible; involved in excursion |
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| Zygomaticus Major | Elevation of the corner of mouth (smile) |
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| Diaphragm | Inspiration; depresses floor of thorax |
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| External Intercostals | Inspiration; elevates ribs |
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| External Oblique | Flexes and rotates vertebral column; compresses abdomen; depresses thorax |
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| Internal Oblique | Flexes and rotates vertebral column; compresses abdomen; depresses thorax |
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| Pectoralis Major | Flexes shoulder; adducts and medially rotates arm; extends shoulder from flexed position | Clavicle | Humerus
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| Pectoralis Minor | depresses scapula or elevates ribs |
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| Rectus abdominus | flexes and rotates vertebral column; compresses abdomen |
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| Serratus Anterior | Rotates and protracts scapulat; elevates ribs |
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| Transverse abdominus | Compresses abdomen |
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| Adductor Longus | Adducts and laterally rotates thigh; flexes hip |
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| Adductor Magnus | "Adductor part: adducts thigh & flexes hip Hamstring part: extends hip" |
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| Biceps Femoris | Flexes knee; laterally rotates leg; extends hip | Femur | Fibula
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| Fibularis longus | Everts and plantar flexes foot | fibula | first metatarsal bone and cuniform
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| Gastrocnemius | plantar flexes foot; flexes knee | Calcaneus | femur
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| Gluteus maximus | extends hip; abducts and laterally rotates thigh | illium, sacrum and coccyx | femur
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| Gluteus medius | abducts and medially rotates thigh;tilts pevis toward supported side |
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| Gracilis | Adduction of thigh; flexion of leg |
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| Iliopsoas | flexes hip |
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| Rectus Femoris | Extension of leg; flexion of thigh; Extensor digitorum longus | Anterior inferior iliac spine | tibial tuberosity
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| Sartorius | flexes hip and knee; laterally rotates and abducts thight; medially rotates leg | Anterior Superior iliac spine | tibial tuberosity
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| Semitendinosous | flexes knee; medially rotates leg; extends hip |
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| Semimembranosous | Flexes knee; medially rotates leg; tenses capsule of knee joint; extends hip |
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| Soleus | plantar flexes foot |
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| Tensor Fascia latae | Flexes Hip; Abducts and medially rotates thigh; stabilizes femor on tibia when standing |
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| Tibialis Anterior | Dorsiflexes and inverts foot | Tibia | Cuniform and first metatarsal bone
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| Vastus intermedius | Extends knee |
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| Vastus Lateralis | Extends knee |
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| Vastus medialis | Extends knee |
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| Biceps Brachii* | Flexes shoulder and elbow; supinates forearm and hand | scapula | radial tuberosity
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| Brachialis | Flexes elbow | Humerus | Ulna
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| Brachioradialis | Flexes elbow | Humerus | Radius
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| Deltoid | Flexes and extends shoulder; abducts, medially and laterally rotates arm |
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| Infraspinatus | Laterally rotates arm; holds head of humerus in place | Scapula | Humerus
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| Latissimus Dorsi | Adducts and medially rotates arm; extends shoulder |
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| Palmaris Longus | Flexion of wrist (weak); Tense palmar aponeurosis |
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| Subscapularis | medially rotates arm; holds head of humerus in place |
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| Supraspinatus | Abducts arm; holds head of humerus in place | Supraspinous Fossa | Humerus
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| Teres major | Extends shoulder; adducts and medially rotates arm | Scapula | Humerus
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| Teres minor | Laterally rotates and adducts arm; holds head of humerus in place |
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| Trapazius | Elevates, depresses, retracts, rotates and fixes scapula; extends neck |
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| Triceps Brachii | Extension of forearm; extension of arm (long head) | Humerus | Ulna
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Created by:
lynette.thorpe
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