Shared Flashcard Set

Details

muscles
muscles orgins movements and insertions
55
Anatomy
Undergraduate 1
11/16/2007

Additional Anatomy Flashcards

 


 

Cards

Term

 

 

 

Occipitofrontalis (epicranius)

 

 

Definition

 

 

 

 

Action: Raises eyebrow as when surprised

 

Term

 

 

 

Buccinator

Definition

 

 

 

 

Action: Compresses cheeks inward as when blowing air

Term

 

 

Zygomaticus Major

Definition

 

 

 

 

 

Action: Raises corner of mouth as when smiling

Term

 

 

 

 Zygomaticus Minor

 

 

 

Definition

 

 

 

 

Action: Raises corner of mouth as when smiling

Term

 

 

 

 

Platysma

Definition

 

 

 

 

Action: Draws angle of mouth downward as when pouting

Term

 

 

 

Orbicularis Oculi

Definition

 

 

 

 

 

Action: Closes eyes as in blinking

Term

 

 

 

 Orbicularis Oris

 

Definition

 

 

 

 

Action: Closes lips, protrudes lips as for kissing

Term

 

 

 

 

Masseter

Definition

 

 

 

Orgin: Lower border of zygomatic arch

Insertion: Lateral surface of mandible

Action: Elevates Mandible

Term

 

 

 

Temporalis

Definition

 

 

 

Action: Elevates Mandible

Term

 

 

 

Medial Pterygoid

Definition

Orgin: Sphenoid, Palatine, and maxillary bones

 

Insertion: Medial surface of mandible

 

Action: Elevates mandible and moves it from side to side

Term

 

 

 

Lateral Pterygoid

Definition

Orgin: Sphenoid Bone

 

Insertion: Anterior surgace of mandibular condyle

 

Action: Depresses and protracts mandible and moves it from side to side

Term

 

 

 

Sternocleidomastioid

Definition

Orgin: Anterior surface of sternum and upper surface of clavicle

 

Insertion: Mastoid Process of temporal bone

 

Action: Pulls head to one side, flexes neck or elevates sternum

Term

 

 

 

Semispinalis Capitis

Definition

 

 

 

 

Action: Extends head, bends head to one side, or extends neck

Term

 

 

 

Trapezius

Definition

 

 

 

Orgin: Occipital bone and spines of cervical and thoracic vertebrae

 

Insertion: Clavicle, spine and acromion process of scapula

 

Action: Rotates scapula; various fibers raise scapula, pull scapula medially, or pull scapula and shoulder downward

Term

 

 

 

 

Diaphragm

Definition

 

 

 

Action: Separates Thoracic cavity from the abdominal-pelvic cavity

Term

 

 

 

Internal Intercostals

Definition

 

 

 

Action: Breath in

Term

 

 

 

External intercostals

Definition

 

 

 

Action: Breath out

Term

 

 

 

Rhomboideus Major

Definition

 

 

 

Retracts elevates, and rotates scapula

Term

 

 

 

Pectoralis Major

Definition

 

Orgin: Clavicle, Sternum, and costal cartilages of upper ribs

 

Insertion: Intertubercular groove of humerus

 

Action: Flexes, adducts, and rotates arm medially

Term

 

 

 

Latissimus Dorsi

Definition

 

 

Orgin: Spines of sacral, lumbar, and lower thoracic vertebrae, iliac crest, and lower ribs

 

Insertion: Intertubercular groove of humerus

 

Action: Extends, Adducts, and rotates the arm 

 medially, or pulls the shoulder downward and back

Term

 

 

 

Deltoid

Definition

 

Orgin: Acromion process, spine of the scapula, and the clavical

 

Insertion: Deltoid tuberosity of humerus

 

Action: Abducts, extends,and flexes arm

Term

 

 

 

 

Subscapularis

Definition

 

 

 

Action: Rotates Arm Medially

Term

 

 

 

Teres Minor

Definition

 

 

 

Action: Rotates arm laterally

Term

 

 

 

Biceps Brachii

Definition

 

 

Orgin: Coracoid process and tubercle above glenoid cavity of scaplula

 

Insertion: Radial tuberosity of radius

 

Action: Flexes forearm at elbow and rotates hand laterally

 

Term

 

 

 

Brachialis

Definition

 

 

 

 

Flexes forearm at elbow

Term

 

 

 

Supinator

Definition

 

 

 

Rotates forearm laterally 

 

 

Term

 

 

 

Pronator Teres

Definition

 

 

 

Rotates arm Medially

Term

 

 

 

Triceps Brachii

Definition

 

 

Orgin: Tubercle below glenoid cavity and lateral and medial surfaces of humerus

 

Insertion: Olecranon process of ulna

 

Action: Extends forearm at elbow

Term

 

 

 

Flexor carpi radialis

Definition

 

 

 

 

Action:Flexes wrist and abducts hand

Term

 

 

 

 

Flexor carpi ulnaris

Definition

 

 

 

 

Action:Flexes wrist and adducts hand

Term

 

 

 

Flexor digitorum profundus

Definition

 

 

 

 

Action:Flexes distal joints of fingers

Term

 

 

 

Flexor digitorum superficialis

Definition

 

 

 

Action: Flexes fingers and wrists

Term

 

 

 

Extensor Carpi radialis longus

Definition

 

 

 

 

Action:Extends wrists and abducts hand

Term

 

 

 

Extensor carpi radialis brevis

Definition

 

 

 

Action: Extends Wrist and Adducts hand

Term

 

 

 

 Extensor carpi ulnaris

Definition

 

 

 

 

 

Action:Extends wrists and adducts hand

Term

 

 

 

 

Extensor digitorum

Definition

 

 

 

Action:  Extends Fingers

Term

 

 

 

 

External oblique

Definition

 

 

 

 

 

Action:Tenses abdominal wall and compresses abdominal contents

Term

 

 

 

 

Internal Oblique

Definition

 

 

 

 

Action: Tenses abdominal wall and compresses abdominal contents

Term

 

 

 

Rectus abdominus

Definition

 

 

 

 

Orgin:Crest of pubis and symphysis pubis

 

Insertion:  Xiphiod process of sternum and costal cartilages

 

Action: Tenses abdominal wall and compresses abdominal contents also flexes vertebral column

Term

 

 

 

 

Transverse Abdominus

Definition

 

 

 

 

 

 

Orgin:Costal cartilages of lower ribs, processes of lumbar vertebrae, lip of iliac crest and inguinal ligament

 

Insertion:Linea alba and crest of pubis

 

Action: Tenses abdominal wall and compresses abdominal contents

Term

 

 

 

 

Gluteus maximus

Definition

 

 Orgin:Sacrum, coccyx and posterior surface of ilium

 

Insertion: Posterior surface of femur and fascia of thigh

 

Action: Extends thigh at hip

 

 

 

Term

 

 

 

 

Gracilis

Definition

 

 

 

 

 

Action: Adducts thigh, flexes leg at the knee

Term

 

 

 

Adductor Magnus

Definition

 

 

 

 

Action: Adducts thigh, posterior portion extends and anterior portion flexes thigh

Term

 

 

 

Adductor Longus

Definition

 

 

 

 

Action: Adducts, flexes and rotates thigh laterally

Term

 

 

 

Biceps femoris

Definition

 

 

 

Orgin:Ischial tuberosity and linea aspera of femur

 

Insertion: Head of fibula and lateral condyle o tibia

 

Action: Flexes and rotates leg laterally and extends thigh

Term

 

 

 

Semitendinosus

Definition

 

 

Orgin: Ischial tuberosity

 

Insertion: Medial surface of tibia

 

Action: Fleses and rotates leg medially and extends thigh

Term

 

 

 

Semimembranosus

Definition

 

 

Orgin: Ischial tuberosity

Insertion: Medial condyle of tibia

Action: Flexes and rotates leg medially and extends thigh

Term

 

 

Sartorius

Definition

 

 

Orgin: Anterior superior iliac spine

 

Insertion: Medial surface of tibia

 

Action: Flexes leg and thigh, abducts and rotates thigh laterally

Term

 

 

 

 

Rectus femoris

 

 

Definition

 

Orgin: Spine of ilium and margin of acetabulum

 

Insertion: Patella by common tendon, which continues as patellar ligament to tibial tuberosity

 

Action: Extends leg at knee

Term

 

 

 

 

Vastus lateralis

Definition

 

Orgin: Greater trochanter and posterior surface of femur

 

Insertion: Patella by common tendon, which continues as patellar ligament to tibial tuberosity

 

Action: Extends leg at knee

Term

 

 

 

 

Vastus medialis

Definition

 

Orgin: Medial surface of femur

 

Insertion: Patella by common tendon, which continures as patellar ligament to tibial tuberosity

 

Action:Extends leg at knee

Term

 

 

Vastus intermedius

Definition

 

Orgin: Anterior and lateral surfaces of femur

 

Insertion: Patella by common tendon, which continues as patellar ligament to tibial tuberosity

 

Action: Extends leg at Knee

Term

 

 

 

Tibialis Anterior

Definition

 

 

 

 

Action:Dorsiflxion and inversion of foot

Term

 

 

 

 

Gastrocnemius

Definition

Orgin: Lateral and media condyles of femur

 

Insertion: Posterior surface of calcaneus

 

Action: Plantar flexion of foot and flexion of leg at knee

Term

 

 

 

Soleus

Definition

Orgin: Head and shaft of fibula and posterior surface of tibia

 

Insertion:  Posterior surface of calcaneus

 

Action: Plantar flexion of foot

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