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Muscles: Insertions, Origins, Actions Lab Pract. 2 Study Material

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Muscle Origin of:
Origin
Muscle Insertion of:
Insertion
Muscle Action of:
Action
Trapezius   Occipital bone; cervical and thoracic vertebrae   Trapezius   Spine and acromion process of scapula   Trapezius   Raises clavicle; adducts, elevates and depresses scapula.  
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Deltoid   Clavicle; spine and acromion process of scapula   Deltoid   Humerus   Deltoid   Abduct arm  
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Latissiumus dorsi   Spines of thoracic and lumbar vertebrae, crests of sacrum and ilium, last four ribs   Latissiumus dorsi   Intertubercular groove of humerus   Latissiumus dorsi   Extends, adducts, and rotates arm medially; pulls shoulder down and back  
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Rhomboideus major   Spines of second through fifth thoracic vertebrae   Rhomboideus major   Vertebral border of scapula   Rhomboideus major   Moves scapula back and up and rotates it downward  
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Rhomboideus minor   Spines of seventh cervical and first thoracic vertebrae   Rhomboideus minor   Superior angle of scapula   Rhomboideus minor   Adducts scapula  
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Supraspinatus   Supraspinous fossa of scapula   Supraspinatus   Greater tubercle of humerus   Supraspinatus   Rotates humerus laterally  
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Infraspinatus   Infraspinous fossa scapula   Infraspinatus   Greater tubercule of humerus   Infraspinatus   Rotates humerus laterally  
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Teres major   Inferior angle of scapula   Teres major   Proximal end of humerus   Teres major   Extends humerus; adducts and rotates arm  
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Pectoral and Abdominal Muscles of the Cat   (blank)   (blank)   (blank)   (blank)   (blank)  
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Pectoantebrachialis   Manubrium   Pectoantebrachialis   Proximal end of forearm by fascia   Pectoantebrachialis   Adducts arm  
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Pectoralis major   Anterior third of sternum   Pectoralis major   Proximal two-thirds of humerus   Pectoralis major   Adducts arm  
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Pectoralis minor   Almost entire length of sternum   Pectoralis minor   Proximal half of humerus   Pectoralis minor   Adducts arm  
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Xiphihumeralis   Xiphoid process   Xiphihumeralis   Proximal end of humerus   Xiphihumeralis   Adducts arm  
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Pectoral and Abdominal Muscles of the Human   (blank)   (blank)   (blank)   (blank)   (blank)  
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Pectoralis major   Clavicle, sternum, and cartilage of second through sixth ribs   Pectoralis major   Greater tubercle of humerus   Pectoralis major   Flexes, adducts, and rotates arm medially  
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Pectoralis minor   Third through fifth ribs   Pectoralis minor   Coracoid process of scapuls   Pectoralis minor   Depresses scapula; rotates shoulder upward  
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External oblique   Lower eight ribs   External oblique   Iliac crest and linea alba   External oblique   Compresses abdomen  
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Internal oblique   Iliac crest, inguinal ligament, and thoracolumbar fascia   Internal oblique   Costal cartilage of last three or four ribs   Internal oblique   Compresses abdomen  
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Transversus abdominis   Iliac crest, inguinal ligament, lumbar fascia, and cartilage of last six ribs   Transversus abdominis   Xiphoid process, linea alba, and pubis   Transversus abdominis   Compresses abdomen  
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Rectus abdominis   Pubic crest and symphysis pubis   Rectus abdominis   Costal cartilage of fifth to seventh ribs and xiphoid process   Rectus abdominis   Flexes vertebral column  
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Muscles That Move the Lower Jaw   (blank)   (blank)   (blank)   (blank)   (blank)  
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Masseter   Maxilla and zygomatic arch   Masseter   Angle and ramus of mandible   Masseter   Elevates mandible as in closing the mouth and protracts(protrudes mandible)  
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Temporalis   Temporal bone   Temporalis   Coronoid process of mandible   Temporalis   Elevates and retracts mandible  
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Muscles of Facial Expression   (blank)   (blank)   (blank)   (blank)   (blank)  
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Frontalis   Galea aponeurotica   Frontalis   Skin wuperior to supraorbital line   Frontalis   Draws scalp forward, raises eyebrows, and wrinkles forehead horizontally  
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Occipitalis   Occipital bone and mastoid process of temporal bone   Occipitalis   Galea aponeurotica   Occipitalis   Draws scalp backward  
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Orbicularis oris   Muscle fibers surrounding opening of mouth   Orbicularis oris   Skin at corner of mouth   Orbicularis oris   Closes lips, compresses lips against teeth, protrudes lips, and shapes lips during speech  
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Zygomaticus   Zygomatic bone   Zygomaticus   Skin at angle of mouth and orbicularis oris   Zygomaticus   Draws angle of mouth upward and outward as in smiling or laughing  
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Mentalis   Mandible   Mentalis   Skin of chin   Mentalis   Elevates and protrudes lower lip and pulls skin of chin up as in pouting  
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Orbicularis oculi   Medial wall of orbit   Orbicularis oculi   Circular path around orbit   Orbicularis oculi   Closes eyes  
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Sternoclediomastoid   Manubrium   Sternoclediomastoid   Mastoid process   Sternoclediomastoid   Rotate head  
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Deep Chest Muscles of the Human   (blank)   (blank)   (blank)   (blank)   (blank)  
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Serratus anterior   First eight or nine ribs   Serratus anterior   Vertebral border and inferior angle of scapula   Serratus anterior   Pulls scapula forward and rotates it upward  
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Coracobrachialis   Coracoid process of scapula   Coracobrachialis   Humerus   Coracobrachialis   Adducts, flexes, and rotates arm  
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External intercostals   Inferior border of rib above   External intercostals   Superior border of rib below   External intercostals   Raise rib at inhalation and thereby increases size of thoracic cavity  
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Internal intercostals   Superior border of rib below   Internal intercostals   Inferior border of rib above   Internal intercostals   Draw adjacent ribs together and lower ribs at exhalation  
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Arm Muscles of the Human   (blank)   (blank)   (blank)   (blank)   (blank)  
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Triceps brachii (Long head)   Infraglenoid tuberosity of scapula   Triceps brachii (Long head)   Olecranon process of ulna   Triceps brachii (Long head)   Extends forearm  
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Triceps brachii (Lateral head)   Above radial groove of humerus   Triceps brachii (Lateral head)   Olecranon process of ulna   Triceps brachii (Lateral head)   Extends forearm  
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Triceps brachii (Medial head)   Below radial groove of humerus   Triceps brachii (Medial head)   Olecranon process of ulna   Triceps brachii (Medial head)   Extends forearm  
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Brachialis   Anterior surface of humerus   Brachialis   Tuberosity and coronoid process of ulna   Brachialis   Flexes forearm  
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Biceps brachii (Long head)   Near glenoid fossa of scapula   Biceps brachii (Long head)   Radial tuberosity   Biceps brachii (Long head)   Flexes and supinates forearm  
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Biceps brachii (Short head   Coracoid process of scapula   Biceps brachii (Short head   Radial tuberosity   Biceps brachii (Short head   Flexes and supinates forearm  
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Supinator   Lateral epicondyle of humerus and ridge of ulna   Supinator   Oblique line of radius   Supinator   Supinates forearm  
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Pronator teres   Medial epicondyle of humerus and coronoid process of ulna   Pronator teres   Lateral surface of radius   Pronator teres   Pronates forearm  
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Hip and Thigh Muscles of the Human   (blank)   (blank)   (blank)   (blank)   (blank)  
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Gluteus maximus   Iliac crest, sacrum, and coccyx   Gluteus maximus   Iliotibial tract of fascia lata and gluteal tuberosity of femurIliotibial tract of fascia lata and gluteal tuberosity of femur   Gluteus maximus   Extends and rotates femur laterally  
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Gluteus medius   Ilium   Gluteus medius   Greater trochanter of femur   Gluteus medius   Abducts and rotates femur laterally  
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Gluteus minimus   Ilium   Gluteus minimus   Greater trochanter of femur   Gluteus minimus   Abducts and rotates femur medially  
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Tensor fasciae latae   Iliac crest   Tensor fasciae latae   Iliotibial tract of fascia lata   Tensor fasciae latae   Flexes and abducts femur  
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Adductor longus   Pubic crest and symphysis   Adductor longus   Linia aspera of femur   Adductor longus   Adducts, rotates, and flexes femur  
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Adductor magnus   Pubis and ischium   Adductor magnus   Linea aspera of femur   Adductor magnus   Adducts, flexes, and extends femur  
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Psoas major   Transverse rocesses and centra of lumbar vertebrae   Psoas major   Lesser trochanter of femur   Psoas major   Flexes and rotates femur laterally; flexes vertebral column  
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Iliacus   Iliac fossa   Iliacus   Tendon of psoas major   Iliacus   Flexes and rotates femur laterally; flexes vertebral column  
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Pectineus   Fascia of pubis   Pectineus   Pectineal line of femur   Pectineus   Flexes, adducts, and rotates thing laterally  
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Biceps femoris   Ischial tuberosity and linea aspera of femur   Biceps femoris   Head of fibula and lateral condyle of tibia   Biceps femoris   Flexes knee; extends thigh  
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Semitendinosus   Ischial tuberosity   Semitendinosus   Proximal end of tibia   Semitendinosus   Flexes knee; extends thigh  
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Semimembranosus   Ischial tuberosity   Semimembranosus   Medial condyle of tibia   Semimembranosus   Flexes knee; extends thigh  
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Gracilis   Pubic symphysis and pubic arch   Gracilis   Medial surface of tibia   Gracilis   Flexes knee; adducts thigh  
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Sartorius   Anterior superior spine of ilium   Sartorius   Medial surface of tibia   Sartorius   Flexes knee; flexes thigh and rotates it laterally  
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Quadriceps   (blank)   (blank)   (blank)   (blank)   (blank)  
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Rectus femoris   Anterior inferior spine of ilium   Rectus femoris   Upper border of patella   Rectus femoris   Extends knee; flexes thigh  
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Vastus lateralis   Greater trochanter and linea aspea of femur   Vastus lateralis   Patella and tibial tuberosity   Vastus lateralis   Extends knee  
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Vastus medialis   Linea aspera of femur   Vasuts medialis   Patella and tibial tuberosity   Vasuts medialis   Extends knee  
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Vastus intermedius   Anterior and lateral surface of femur   Vastus intermedius   Patella and tibial tuberosity   Vastus intermedius   Extends knee  
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Superficial Lower Leg Muscles of the Human   (blank)   (blank)   (blank)   (blank)   (blank)  
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Gastroncnemius   Lateral and medial condyles of femur and capsule of knee   Gastroncnemius   Calcaneus by Achilles tendon   Gastroncnemius   Plantar flexes (extends foot)  
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Soleus   Head of fibula and medial border of tibia   Soleus   Calcaneus by Achilles tendon   Soleus   Plantar flexes foot  
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Peroneus longus   Head and body of fibula and lateral condyle of tibia   Peroneus longus   First metatarsal and first cuneiform   Peroneus longus   Plantar flexes and everts foot  
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Peroneus brevis   Body of fibula   Peroneus brevis   Fifth metatarsal   Peroneus brevis   Plantar flexes and everts foot  
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Tibialis anterior   Lateral condyle and body of tibia   Tibialis anterior   First metatarsal and first cuneiform   Tibialis anterior   Flexes foot dorsally and inverts it  
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Tibialis posterior   Membrane between tibia and fibula   Tibialis posterior   Second, third, and fourth metatarsals; navicular; third cuneiform; cuboid   Tibialis posterior   Plantar flexes and inverts foot  
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Flexor digitorum longus   Tibia   Flexor digitorum longus   Distal phalanges of four outer toes   Flexor digitorum longus   Flexes toes; plantar flexes and inverts foot  
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Extensor digitorum longus   Lateral condyle of tibia and anterior surface of fibula   Extensor digitorum longus   Middle and distal phalanges of four outer toes   Extensor digitorum longus   Extends toes, flexes foot dorsally and everts it  
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