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Muscles 63

63 Muscles with origin, insertion, and function

QuestionAnswer
Name the muscles of Region 1:Face Frontalis, Temporalis, Buccinator, Orbicularis Oculi, Orbicularis Oris, Masseter
action of Frontalis Elevate eyebrows
action of Temporalis Elevate and retract mandible
action of Buccinator Compress cheeks, assist in mastication(keeps food between teeth)
action of Orbicularis Oculi Close eyes(squinting, blinking)
action of Orbicularis Oris Close and protrude lips
action of Masseter Elevate, and protract mandible
Name the muscles of region 2: Head, Neck, Back Trapezius, Rhomboid major, Rhomboid minor, Levator scapulae, Sternocleidomastoid, Latissimus
action of Trapezius Elevate, adduct, and stabilize scapula; extend head
action of Rhomboid major Elevate and adduct scapula
action of Rhomboid minor Elevate and adduct scapula
action of Levator scapulae Elevate scapula
action of Sternocleidomastoid Rotate head, flex neck, elevate sternum
action of Latissimus Dorsi Extend, adduct, and medially rotate arm at shoulder
Name muscles of Region 3: Upper Limb (scapula and posterior limb) Supraspinatus, Infraspinatus, Subscapularis, Teres Minor, Teres Major, Deltoideus, Triceps Brachii (three heads): Long head, Lateral head, Medial head
Name the muscles that make up the Rotator Cuff Supraspinatus, Infraspinatus, Subscapularis, Teres Minor
action of Supraspinatus Abducts arm
origin of Supraspinatus Supraspinous fossa of scapula
insertion of Supraspinatus Greater tubercle of humerus
action of Infraspinatus Lateral rotation of arm
origin of Infraspinatus Infraspinous fossa of scapula
insertion of Infraspinatus Greater tubercle of humerus
action of Subscapularis Medial rotation of arm
origin of Subscapularis Subscapular fossa of scapula
insertion of Subscapularis Lesser tubercle of humerus
action of Teres Minor Lateral rotation of arm
origin of Teres Minor Lateral order of scapula
insertion of Teres Minor Greater tubercle of humerus
action of Teres Major Extend, adduct, and medially rotate arm
origin of Teres major Inferior angle of scapula
insertion of Teres Major Distal to lesser tubercle of humerus
action of Deltoid Abduct arm at shoulder
origin of Deltoid Spine of scapula, acromion process of scapula, clavicle
insertion of Deltoid Deltoid tuberosity of humerus
action of Triceps Brachii(three heads) Extends elbow
origin of Long head of Triceps Brachii Infraglenoid tubercle of scapula
insertion of Long head of Triceps Brachii Olecranon process of ulna
origin of Lateral head of Triceps Brachii Lateral and posterior surface of humerus, superior to the groove for radial nerve
insertion of Lateral head of Triceps Brachii Olecranon process of ulna
origin of Medial head of Triceps Brachii Posterior surface of humerus, inferior to radial groove
insertion of Medial head of Triceps Brachii Olecranon process of ulna
Name the muscles of Region 4: Upper Limb (anterior) Biceps Brachii(two heads), Brachialis, Coracobrachialis, Pectoralis Major, Pectoralis Minor, Serratus Anterior
action of Biceps Brachii(two heads) Flex elbow; supinate forearm
origin of Long head of Biceps Brachii Supraglenoid tubercle
insertion of Long head of Biceps Brachii Radial tuberosity and bicipital aponeurosis
origin of Short head of Biceps Brachii Coracoid process of scapula
insertion of Short head of Biceps Rachii Radial tuberosity and bicipital aponeurosis
action of Brachialis Flex forearm at elbow
origin of Brachialis Anterior surface of humerus
insertion of Brachialis Ulnar tuberosity and coronoid process of ulna
action of Coracobrachialis Flex and adduct arm at shoulder
origin of Coracobrachialis Coracoid process of scapula
insertion of Coracobrachialis Medial surface of humerus shaft
action of Pectoralis Major Adduct, flex, and medially rotate arm
action of Pectoralis Minor Depress scapula
action of Serratus Anterior Abduct and protract scapula
Name the muscles of Region 5:Forearm Palmaris Longus, Flexor Carpi Radialis, Flexor Carpi Ulnaris, Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, Extensor Carpi Ulnaris, Extensor Digitorum, Brachioradialis
action of Palmaris Longus Flex wrist
action of Flexor Carpi Radialis Flex and abduct wrist
action of Flexor Carpi Ulnaris Flex and adduct wrist
action of Extensor Carpi Radialis Longus Extend and abduct wrist
action of Extensor Carpi Radialis Brevis Extend and abduct wrist
action of Extensor Carpi Ulnaris Extend and adduct wrist
action of Extensor Digitorum Extend fingers
action of Brachioradialis Flex forearm at elbow, supinate and pronate radius
Name the muscles of Region 6: Thorax, Abdomen Diaphragm, External intercostals, Internal intercostals, External obliques, Internal obliques, Transverse abdominis, Rectus abdominis, Inguinal ligament, Psoas major
action of Diaphragm Inspiration
action of External intercostals Elevate ribs during inhalation
action of Internal intercostals Depress ribs during active exhalation
action of External obliques Flex, extend, and laterally flex vertebral column
action of Internal obliques Laterally flex vertebral column, compress abdomen
action of Transverse abdominis Compress abdomen
action Rectus abdominis Flex vertebral column, compress abdomen
action of Inguinal ligament Forms part of the insertion of the external obliques; can be found between the inguinal canal and the femoral triangle
action of Psoas major Flex and laterally rotate thigh at hip, flex trunk
Name the muscles of Region 7: Anterior Thigh Vastus Lateralis, Vastus Medialis, Vastus Intermedius, REctus Femoris, Sartorius, Gracilis, Adductor Brevis, Adductor Longus, Adductor Magnus, Pectineus
Name the muscles that make up the Quadriceps Vastus Lateralis, Vastus Medialis, Vastus Intermedius, Rectus Femoris
action of Vastus Lateralis Extend leg at knee
origin of Vastus Lateralis Greater trochanter and linea aspera of femur
insertion of Vastus Lateralis Tibial tuberosity
action of Vastus Medialis Extend leg at knee
origin of Vastus Medialis Linea aspera of femur
insertion of Vastus Medialis Tibial tuberosity
action of Vastus Intermedius Extend leg at kneee
origin of Vastus Intermedius Anterior and lateral surfaces of body of femur
insertion of Vastus Intermedius Tibial tuberosity
action of Rectus Femoris Extend leg at knee;flex thigh at hip
origin of Rectus Femoris Anterior inferior iliac spine
insertion of Rectus Femoris Tibial tuberosity
action of Sartorius Flex and laterally rotate thigh; flex leg at knee
action of Gracilis Flex, adduct, and medially rotate thigh at hip; flex leg at knee
action of Adductor Brevis Adduct thigh
origin of Adductor Brevis Inferior ramus of pubis
insertion of Adductor Brevis Linea aspera of femur
action of Adductor Longus Adduct thigh
origin of Adductor Longus Inferior ramus of pubis
insertion of Adductor Longus Linea aspera of femur
action of Adductor Magnus Adduct, laterally rotate, and flex thigh
origin of Adductor Magnus Inferior ramus of pubis and ischium, to ischial tuberosity
insertion of Adductor Magnus Linea aspera of femur
action of Pectineus Flex and adduct thigh at hip
Name muscles of Region 8: Posterior Thigh Biceps Femoris(two heads), Semitendinosus, Semimembranosus, Gluteus maximus, Gluteus medius
Name the muscles that make up the hamstrings Biceps Femoris(two heads), Semitendinosus, Semimembranosus
action of Biceps Femoris(two heads) Extend thigh at hip; flex leg at knee
origin of Long head of Biceps Femoris Ischial tuberosity
insertion of Long head of Biceps Femoris Head of fibula and lateral condyle of tibia
origin of Short head of Biceps Femoris Linea aspera
insertion of Short head of Biceps Femoris Head of fibula and lateral condyle of tibia
action of Semitendinosus Extend thigh at hip; flex leg at knee
origin of Semitendinosus Ischial tuberosity
insertion of Semitendinosus Medial surface of body of tibia
action of Semimembranosus Extend thigh at hip; flex leg at knee
origin of Semimembranosus Ischial tuberosity
insertion of Semimembranosus Medial condyle of tibia
action of Gluteus maximus Extend thigh at hip, laterally rotate thigh at hip
action of Gluteus medius Abduct thigh at hip, medially rotate thigh at hip
Name the muscles of Region 9: Calf Gastrocnemius (two heads), Soleus, Plantaris, Popliteus, Tibialis Anterior, Peroneus (fibularis) longus Peroneus (fibularis) longus
origin of Gastrocnemius (two heads) Medial and lateral condyles of the femur
insertion of Gastrocnemius (two heads) Calcaneus
action of Gastrocnemius (two heads) plantar flex foot; flex leg at knee
action of Soleus Plantar flex foot
origin of Soleus Fibula, soleal line of tibia
insertion of Soleus Calcaneus
action of Plantaris Plantar flex foot
action of Popliteus Medially rotate tibia
origin of Tibialis Anterior Lateral condyle and body of tibia
insertion of Tibialis Anterior First metatrasal and first cuneiform
action of Tibialis Anterior Dorsiflex and invert foot
action of Poreneus(fibularis)longus Evert foot
Name muscles of Region 10: Knee Joint Lateral Meniscus, Medial Meniscus, Anterior Cruciate Ligament, Posterior Cruciate Ligament, Fibular(Lateral) Collateral Ligament, Tibial(Medial) Collateral Ligament, Transverse Ligament
action of Lateral Meniscus Shock absorption; improves fit of femur on tibia
action of Medial Meniscus Shock absorption; improves fit of femur on tibia
action of Anterior Cruciate Ligament Prevents hyperextension and anterior displacement of tibia
action of Posterior Cruciate Ligament Prevents hyperflexion and posterior displacement of tibia
action of Fibular Collateral Ligament Reinforce lateral surface of joint, prevent hyper-adduction
action of Tibial Collateral Ligament Reinforce medial surface of joint, prevent hyper-abduciton
action of Transverse Ligament Connects medial and lateral menisci
Created by: FutureNurse!