Anatomy And Physiology: Muscle

  
Created Mar 3, 2013
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Side ASide B
Skeletal muscle: Identify and give examples of where it is found
Multiple nuclei, striated, voluntary and involuntary (reflexes) control. Location: attached...
Smooth muscle: Identify and give examples of where it is found
Spindle shaped, single nucleus that is centrally located. Location: walls of hollow organs,...
Cardiac muscle: Identify and give examples of where it is found
Striated, single centrally located nucleus. Function: pumps blood Location: Heart
Orbicularis Oculi
closes eye
Orbicularis Oris
Compresses and purses lips
Zygomaticus Major
Retracts and elevates corners of the mouth
Platysma
Tenses skin of neck, depresses mandible
Frontalis
Raises eyebrows, wrinkles scalp
Occipitalis
Tenses and retracts scalp
Buccinator
Compresses cheeks
Masseter
Elevates mandible
Temporalis
Elevates mandible
Medial Pterygoid
Moves mandible side to side
Lateral Pterygoid
Moves mandible side to side
Genioglossus
Depresses tongue
Hyoglossus
Depresses tongue
Styloglossus
Retracts tongue
Sternocleidomastoid
Both together: flexion of neck, one: laterally bends neck to opposite side Origin: Sternum...
Splenius Capitis
Both together: extension of the neck, one: rotate and laterally flex neck to same side
Erector Spinae Group: Iliocostalis, Longissimus, and Spinalis
Extend Vertebral Column
Quadratus Lumborum
Depress ribs or laterally flex spine
Psoas Major
Hip flexion O: vertebra T12-L5 I: lesser trochanter femur
Iliacus
Hip flexion O: Iliac fossa of ilium I: Lesser trochanter femur
Diaphragm
Expands thoracic cavity and compresses abdominopelvic cavity
Rectus Abdominis
Flexes trunk, compress abdomen
External Oblique
Flex trunk, rotates trunk to opposite side, compresses abdomen
Transverse Abdominis
Stabilizes spine, compress abdomen
Internal Oblique
Flex trunk, rotates trunk to same side, compresses abdomen
Levator Scapulae
Elevate scapula O: Cervical vertebra I: Scapula
Pectoralis Minor
Stabilizes scapula by drawing it inferior
Rhomboid Major and Rhomboid Minor
Adducts scapula. O: vertebra (C7-T4) I: scapula
Serratus Anterior
Protracts scapula
Trapezius
Upper fibers elevate scapula, middle fibers retract scapula, lower fibers depress scapula O:...
Deltoid
Abduction of shoulder (anterior fibers-flexion, posterior fibers- extension) O: Scapula and...
Coracobrachialis
Adduction and flexion of shoulder O: Coracoid process of scapula I: Humerus
Pectoralis major
adduction, flexion, medial rotation shoulder O: ribs, sternum, and clavicle I: humerus
Latissimus dorsi
Adduction, extension, medial rotation shoulder O: Spinal column and ilium I: anterior humerus
Supraspinatus
Abduction shoulder. O: supraspinous fossa I: humerus
Infraspinatus
Lateral rotation shoulder O: infraspinous fossa I: humerus
Teres Minor
Lateral rotation shoulder O: scapula I: Humerus
Subscapularis
Medial rotation shoulder O: subscapular fossa I: humerus
Teres major
Adduction, extension, medial rotation shoulder O: scapula I: humerus Not part of rotator...
Biceps brachii
Flexion and supination elbow, long head flexion shoulder also Long head O: scapula I: radius Short...
Brachialis
Flexion elbow O: humerus I: ulna
Brachioradialis
Flexion elbow
Triceps Brachii
Extension elbow, long head extension shoulder also Long head O: scapula Medial and Lateral...
Pronator Teres
Pronation forearm
Flexor Carpi Radialis
Flexion wrist
Palmaris Longus
Flexion wrist
Flexor Carpi Ulnaris
Flexion wrist
Flexor Digitorum Superficialis
Flexion wrist and proximal interphalangeal joints
Flexor Digitorum Profundus
Flexion wrist and distal interphalangeal joints
Extensor Carpi Radialis Longus
Extension wrist
Extensor Carpi Radialis Brevis
Extension wrist
Extensor Digitorum
Extension wrist and fingers
Extensor Digiti minimi
Extension finger 5
Extensor Carpi Ulnaris
Extension wrist
Abductor Pollicis Longus
Abduction thumb
Extensor Pollicis Brevis
Extension thumb
Extensor Pollicis Longus
Extension thumb
Supinator
Supinate forearm
Gluteus Maximus
Extension, lateral rotation hip O: Iliac crest and sacrum I: Iliotibial tract
Gluteus Medius
Abduction, medial rotation hip O: Ilium I: Greater Trochanter
Gluteus Minimus
Abduction, medial rotation hip
Piriformis
Lateral rotation hip
Tensor Fasciae Latae
Flexion, medial rotation hip, stabilizes hip and knee O: Ilium I: Iliotibial tract
Iliotibial tract
Not a muscle
Adductor Magnus
Adduction hip
Adductor Longus
Adduction hip
Gracilis
Adduction hip, flexion knee O: pubis I: tibia
Biceps Femoris
Flexion knee, extension hip Long head- O: Ischial tuberosity I: lateral tibia Short head- O:...
Semimembranosus
Flexion knee, extension hip O: Ishial tuberosity I: medial tibia
Semitendinosis
Flexion knee, extension hip O: Ishial Tuberosity I: Tibia
Sartorius
Flexion knee, flexion hip O: Anterior superior iliac spine I: medial tibia
Rectus Femoris
Extension knee, flexion hip O: Iliac spine I: Patella
Vastus Intermeius Vastus Medialis Vastus Lateralis
Extension Knee O: Femur I: Patella
Gastrocnemius
plantarflexion ankle O: condyles of femur I: Achilles tendon
Soleus
plantarflexion ankle O: Tibia and fibula I: Achilles tendon
Achilles tendon
Not a muscle
Flexor digitorum longus
Flex toes 2-5
Tibialis posterior
Plantarflexion ankle
Flexor hallucis longus
Flexion great toe (Hallux)
Popliteus
flexion at knee
Fibularis Longus Fibularis Brevis
Eversion ankle/foot
Tibialis anterior
dorsiflexion ankle O: tibia I: 1st metatarsal and cuneiform
Extensor Digitorum Longus
extension toes 2-5
Extensor Hallucis Longus
Extension great toe (hallux)


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