OINA Flashcards
External oblique
Origin (O)
Lumbodorsal fascia and
Posterior ribs
Insertion (I)
linea alba; Inguinal ligament
Action (A)
Compressor of the abdomen
Internal oblique
Origin (O)
Second sheet of the lumbodorsal fascia, posterior ribs and inguinal ligament
Insertion (I)
Linea alba
Action (A)
Compressor of the abdomen
Transversus abdominis
Origin (O)
Second sheet of the lumbodorsal fascia, posterior ribs and inguinal ligament
Insertion (I)
Linea alba
Action (A)
Compressor of the abdomen
Rectus abdominis
Origin (O)
pubic symphysis
Insertion (I)
Sternum and costal cartilages
Action (A)
Retract ribs and sternum and
compresses the abdomen
Pectoralis major
Origin (O)
sternum
Insertion (I)
Humerus
Action (A)
Draw the arm toward the chest
Pectoralis minor / pectoralis profundus
Origin (O)
Manubrium
Insertion (I)
Clavicle
Spine of the Scapula
Action (A)
Draws arm and shoulder
toward the chest
Sternohyoid
Origin (O)
Sternum
Insertion (I)
Anterior horn of the hyoid
Action (A)
Draws the hyoid posteriorly or raises the sternum
Sternomastoid
Origin (O)
Sternum and fascia of the pectoralis
Insertion (I)
Mastoid process of the skull
Action (A)
Singly turn the head,
depresses the head on the neck
Cleidomastoid
Origin (O)
Clavicle
Insertion (I)
Mastoid region of the skull
Action (A)
Elevates the clavicle or turns the head
Cleidodeltoid
Origin (O)
Clavicle
Insertion (I)
Humerus
Action (A)
Pulls humerus forward
Masseter
Origin (O)
Zygomatic arch
Insertion (I)
posterior end of the mandible
Action (A)
Closes the lower jaw
Digastric
Origin (O)
Occipital bone
Insertion (I)
Ventral surface of the mandible
Action (A)
Opens the jaw
Mylohyoid
Origin (O)
Mandible
Insertion (I)
Median ventral line (raphe) and the hyoid
Action (A)
Raises the floor of the mouth
Brings the hyoid forward
Sternothyroid
Origin (O)
Sternum
Insertion (I)
Thyroid cartilage
Action (A)
Pulls the larynx posteriorly
Thyrohyoid
Origin (O)
Thyrocartilage
Insertion (I)
Hyoid
Action (A)
Raises the larynx
Latissimus dorsi
Origin (O)
Lumbodorsal fascia and posterior ribs
Insertion (I)
Crest on the medial side of the humerus
Action (A)
Draws the arm caudad and dorsad
Acromiotrapezius
Origin (O)
External occipital protuberance
Insertion (I)
Metacromion process
Action (A)
Draws the scapula and limb upward and forward
Spinotrapezius
Origin (O)
Lumbodorsal fascia and the neural spines of the thoracic vertebrae
Insertion (I)
Metacromion process
Action (A)
Draws the scapula and limb upward and forward
Levator scapulae major
Levator scapulae ventralis
Origin (O)
occiput
Insertion (I)
Metacromion process
Action (A)
Draws the scapula and limb upward and forward
Rhomboideus major
Origin (O)
Spinous processes of thoracic vertebrae
Insertion (I)
Vertebral border of scapula
Action (A)
Pulls scapula medially
Rhomboideus minor
Origin (O)
Spinous processes of thoracic vertebrae
Insertion (I)
Vertebral border of scapula
Action (A)
Pulls scapula medially
Supraspinatus
Origin (O)
Supraspinous fossa
Insertion (I)
Greater tuberosity of the humerus
Action (A)
Extends the humerus
Infraspinatus
Origin (O)
Infraspinous fossa and spine
Insertion (I)
Greater tuberosity of the humerus
Action (A)
Extends the humerus
Acromiodeltoid
Origin (O)
Acromion process
Insertion (I)
Humerus
Action (A)
Raises the humerus
Spinodeltoid
Origin (O)
Fascia of the muscle which fills the infraspinous fossa
Insertion (I)
Humerus
Action (A)
Raises the humerus
Teres major
Origin (O)
Dorsal half the axillary border of the scapula
Insertion (I)
Humerus
Action (A)
Draws humerus against body and rotates it
Teres minor
Origin (O)
scapula
Insertion (I)
Humerus
Action (A)
Draws humerus against body and rotates it
Subscapularis
Origin (O)
scapula
Insertion (I)
humerus
Action (A)
Pulls the humerus toward the median ventral line
Serratus ventralis
Origin (O)
ribs
Insertion (I)
Dorsal edge of scapula
Action (A)
Depresses scapula
Triceps Brachii
Origin (O)
Scapula, from the axillary border
Insertion (I)
Olecranon of ulna
Action (A)
Extends forearm
Triceps Brachii Long head
Origin (O)
Glenoid border of the scapula
Insertion (I)
Olecranon process of the ulna
Action (A)
Extends forearm
Triceps Brachii Lateral head
Origin (O)
Greater tuberosity and deltoid ridge of the humerus
Insertion (I)
Olecranon process of the ulna
Action (A)
Extends forearm
Triceps Brachii Medial head
Origin (O)
Dorsal surface of the humerus
Insertion (I)
Olecranon process of the ulna
Action (A)
Extends forearm
Epitochlearis or Extensor antibranchii
Origin (O)
Fascia on long head of the triceps
Insertion (I)
Olecranon
Action (A)
Extends forearm
Biceps brachii
Origin (O)
Glenoid fossa
Insertion (I)
Ulna and Radius
Action (A)
Flexes the forearm
Brachialis
Origin (O)
Ventral and lateral surface of the humerus
Insertion (I)
Ulna and Radius
Action (A)
Flexes the forearm
Tensor fasciae latae
Origin (O)
Illium
Insertion (I)
In the Fascia
Action (A)
Tightens the fascia
Biceps femoris
Origin (O)
Ischium
Insertion (I)
Tibia and patella
Action (A)
Adductor of the thigh and flexor of the shank
Gluteus maximus
Origin (O)
illium and Fascia of the sacrum
Insertion (I)
Third trochanter
Action (A)
Abducts the thigh
Gluteus medius
Origin (O)
Crest and anterior part of illlium
Insertion (I)
Great trochanter
Action (A)
Abducts the thigh
Vastus lateralis
Origin (O)
Greater trochanter
Insertion (I)
Tibia and the patella
Action (A)
Powerful extensor of the shank
Vastus intermedius
(O)
Greater trochanter and surface of the femur
Insertion (I)
Tibia and the patella
Action (A)
Powerful extensor of the shank
Vastus medialis
(O)
Greater trochanter and surface of the femur
Insertion (I)
Tibia and the patella
Action (A)
Powerful extensor of the shank
Rectus femoris
(O)
Illium
Insertion (I)
Tibial crest
Action (A)
Extends hindlimb
Sartorius
(O)
Inguinal ligament
Insertion (I)
Tibia
Action (A)
Adductor of the thigh;
Rotator of the thigh;
Extensor of the Shank
Gracilis
(O)
Pubic symphysis
Insertion (I)
Knee and hindlimb medial surface
Action (A)
Adductor of the leg
Adductor longus
(O)
ischium
Insertion (I)
Femur
Action (A)
Adductor of the leg
Adductor magnus
(O)
ischium
Insertion (I)
Femur
Action (A)
Adductor of the leg
Semitendinosus
(O)
Ischial tuberosity
Insertion (I)
Medial condyle of the tibia
Action (A)
Flexor of the shank
Semimembranosus
(O)
Fascia over the biceps and ischial tuberosity
Insertion (I)
fascia of the shank
Action (A)
Flexor of the shank
Tibialis anterior
(O)
Lateral condyle and tuberosity of the tibia
Insertion (I)
Second metatarsals
Action (A)
Flexor of the foot
Gastrocnemius
(O)
Lateral and medial condyles of the femur and tibia
Insertion (I)
Tendon of Achilles
Action (A)
Extensor of the foot
Adductor brevis
(O)
pubis
Insertion (I)
Femur
Action (A)
Adductor of the leg
Multifidus
(O)
illium and sacrum
Insertion (I)
spinous processes of thoracic vertebrae
Action (A)
bends torso to the side
Pectoralis tenuis
(O)
Sternum
Insertion (I)
Pectoral ridge of humerus
Action (A)
Adducts forelimb