Shared Flashcard Set

Details

Origins and insertions
origins and insertions alex sanchez
49
Anatomy
Undergraduate 4
10/06/2008

Additional Anatomy Flashcards

 


 

Cards

Term
Platysma
Definition
Origin-fascia of the superior thorazx between cartilage of second rib and acromion of scapula
Insertion-Mandible and skin of cheek
Action-Tenses skin of neck depresses mandible
Term
Sternocleidomastoid
Definition
Origin-attaches to sternal end of clavicle
attaches to manubrium
Insertion-Mastoid region of skull and lateral portion of superior nuchal line
Action-together, they flex the neck
Term
External oblique
Definition
Origin-esternal and inferior borders of ribs 5-12
Insertion-external oblique aponeuroses extending to linea alba and iliac crest
Action-compresses abdomen;depresses ribes,flexes laterally flexes
Term
Internal oblique
Definition
ORigin-thorocolumbar fascia and iliac crest
Insertion: Inferior surfaces of ribs 9-12 costal cartilages 8-10 linea alba and pubis
Action-as above but rotates vetebral column to same side
Term
Transvers Abdominis
Definition
origin-cartilages of ribs 6-12
insertion-linea alba and pubis
Action-compresses abdomen
Term
Rectus Abdominis
Definition
Origin-superior surface of pubis around symphysis
Insertion-inferior surfaces of cartilages and xiphoid process of sternum
Action-depresses ribs, flexes veterbral column and compresses abdomen
Term
Trapezius
Definition
Origin
Occipital bone, spines of C7 and all T vertebra

Insertion- spine and acromion of scapula

Action-Extends head; elevates, depresses, rotates and retracts scapula
Term
Rhomboid major
Definition
origin-spinous process of superior thoracic vetebrae

Insertion-veterbral order of scapula from spine to inferior angle

Action-adducts and performs downward ortation af the scapula
Term
Rhomboid minor
Definition
Spinous processes of vetebrae-c7-t1

Insertion-vetebral border of scapula

action- same as major group
Term
Levator scapulae
Definition
Origin -Transverse processes of first four cervical vetebreae


Insertion-vetebral border of scapula near superior angle


ACtion-elevates scapula
Term
Pectoralis minor
Definition
Origin-anterior surfaces and superior margins of ribs 3-5
Insertion-Coracoid process of scapula

Action-depresses and protracts shoulder
Term
Deltoid
Definition
Deltoids (Anterior): Origin Lateral third of clavicle

Deltoids: Insertion Deltoid tuberosity of humerus

Deltoids (Anterior): Action Flexion, horizontal adduction, medial rotation of humerus
Term
Supraspinatus
Definition
Supraspinatus: Orignin Supraspinous fossa of scapula

Supraspinatus: Insertion Greater tubercle of humerus (superior facet)

Supraspinatus: Action Abduction of humerus; stabilization of head of humerus
Term
Infraspinatus
Definition
Infraspinatus: Origin Infraspinous fossa of scapula

Infraspinatus: Insertion Greater tubercle of humerus (middle facet)

Infraspinatus: Action Extension, lateral rotation of humerus
Term
Subscapularis
Definition
Subscapularis: Origin Subscapular fossa of scapula

Subscapularis: Insertion Lesser tubercle of humerus

Subscapularis: Action Adduction, medial rotation of humerus
Term
Teres minor
Definition
Teres Minor: Origin Upper 2/3 of axillary border of scapula

Teres Minor: Insertion Greater tubercle of humerus (inferior facet)

Teres Minor: Action Extension, lateral rotation of humerus
Term
Teres major
Definition
Teres Major: Origin Inferior angle of scapula; Lower third of axillary border of scapula
Teres Major: Insertion Medial lip of bicipital groove of humerus
Teres Major: Action Extension, adduction, medial rotation of humerus
Term
Latissimus dorsi
Definition
Latissimus Dorsi: Origin Thoracolumbar aponeurosis; lower 6 thoracic spinous processes; Sacrum and iliac crest; Lower 3-4 ribs; Inferior angle of scapula
Latissimus Dorsi: Insertion Bicipetal groove of humerus
Latissimus Dorsi: Action Extension, adduction, medial rotation of humerus
Term
Pectoralis major
Definition
Pectoralis Major (Clavicular Head): Origin Medial half of clavicle
Pectoralis Major (Sternal Head): Origin Sternum, cartilages of upper 6 ribs
Pectoralis Major: Insertion Lateral lip of bicipital groove of humerus
Pectoralis Major (both heads): Action Adduction, horizontal adduction, medial roation of humerus
Pectoralis Major (Clavicular Head): Action Flexion of humerus
Pectoralis Major (Sternal Head): Action Extension of humerus from a flexed position
Term
Coracobrachialis
Definition
Origin-oracoid process
Insertion-medial margin of shaft of humerus
Action-adduction and flexion at shoulder
Term
Biceps brachii (long and short head)
Definition
Biceps Brachii (Short Head): Origin Corocoid process of scapula

Biceps Brachii: Insertion Tuberosity of radius; bicipital aponeurosis

Biceps Brachii: Action Flexion of elbow, supination of forearm; Short Head: flexion of humerus
Term
Brachialis
Definition
Brachialis: Origin Lower half of anterior shaft of Humerus

Brachialis: Insertion Tuberosity of Ulna; coronoid process of Ulna

Brachialis: Action Flexion of elbow
Term
Brachioradialis
Definition
Brachioradialis: Origin Lateral supracondylar ridge of Humerus
Brachioradialis: Insertion Syloid Process of Radius
Brachioradialis: Action Flexion of elbow with forearm in neutral postion
Term
Triceps brachii (long, lateral and medial head)
Definition
Triceps Brachii (Long Head): Origin Infraglenoid tubercle of scapula
Triceps Brachii (Lateral Head): Origin Posterious humerus above spiral groove
Triceps Brachii (Medial Head): Origin Posterior humerus below spiral groove
Triceps Brachii: Insertion Olecranon process of ulna
Triceps Brachii: Action Extension of elbow; Long Head: Extension of humerus
Term
Flexor carpi radialis
Definition
Flexor Carpi Ulnaris: Origin Humeral head-
Flexor Carpi Ulnaris: Insertion Pisiform, Hamate, Base of 5th metacarpal

Flexor Carpi Ulnaris: Action Flexion of wrist w/ulnar deviation
Term
Palmaris longus
Definition
Palmaris Longus: Origin Medial epicondyle of Humerus
Palmaris Longus: Insertion Palmar aponeurosis, flexor retinaculum
Palmaris Longus: Action Assists flexion of wrist
Term
Flexor carpi ulnaris
Definition
Flexor Carpi Radialis: Origin Medial epicondyle of Humerus
Flexor Carpi Radialis: Insertion Bases of 2nd and 3rd metacarpals
Flexor Carpi Radialis: Action Flexion of wrist w/radial deviation
Term
Extensor digitorium
Definition
Extensor Digitorum: Origin Lateral epicondyle of Humerus (common extensor tendon)
Extensor Digitorum: Insertion Extensor expansion of 4 fingers
Extensor Digitorum: Action Extension of proximal phalanges of 4 fingers at MP joint; assists flexion of wrist
Term
Extensor carpi ulnaris
Definition
Extensor Carpi Ulnaris: Origin Lateral epicondyle of Humerus (common extensor tendon); posterior proximal Ulna
Extensor Carpi Ulnaris: Insertion Base of 5th metacarpal
Extensor Carpi Ulnaris: Action Extension of wrist w/ulnar deviation
Term
Extensor carpi radialis
Definition
Extensor Carpi Radialis Brevis: Origin Lateral epicondyle of Humerus (common extensor tendon)
Extensor Carpi Radialis Brevis: Insertion Base of 3rd metacarpal
Extensor Carpi Radialis Brevis: Action Extension of writs
Term
Gluteus maximus
Definition
Gluteus Maximus: Origin Posterior sacrum; Ilium (via ligamentous sheath); Superior gluteal line of Ilium

Gluteus Maxiumus: Insertion Gluteal tuberosity of femur;




Gluteus Maximus: Action Extension of femur at hip; Lateral rotation of hip; (primary anti-gravity muscle)
Term
Tensor fasciae latae
Definition
Origin-Iliac crest and lateral surfac of anterior superior iliac spine

Insertion-iliotibial tract

Action-Abduction and mdial rotation at hip
Term
Pectineus
Definition
Pectineus: Origin Anterior pubis
Pectineus: Insertion Posterior femur between lesser trochanter and linea asperea
Pectineus: Action Flexion of femur at hip; assists in adduction of femur at hip
Term
Adductor longus
Definition
Adductor (Longus and Brevis): Origin Anterior pubis
Adductor (Longus and Brevis): Insertion Linea aspera on posterior femur
Adductor (Longus and Brevis): Action Adduction of femur at hip; Assists in flexion of hip
Term
Adductor magnus
Definition
Adductor Magnus (posterior head): Origin Ischial tuberosity and ramus of ischium
Adductor Magnus (anterior head): Insertion Linea aspera of femur
Adductor Magnus (posterior head): Insertion Adductor tubercle of femur
Adductor Magnus (both heads): Action Adduction of femur at hip
Term
Gracialis
Definition
Gracilis: Origin Inferior ramus of anterior pubis
Gracilis: Insertion Medial proximal tibia
Gracilis: Action Adduction of femur at hip; Assists flexion and medial rotation of flexed knee
Term
Sartorius
Definition
Sartorius: Origin Anterior Superior Iliac Spine (ASIS)
Sartorius: Insertion Upper medial shaft of tibia
Sartorius: Action Assists flexion, aduction, lateral rotation of femur at hip; Assists flexion, medial rotation of knee ("tailor position")
Term
Rectus femoris
Definition
origin-anterior inferior iliac spine and superior acetabular rim of ilium
Insertion-tibal tuberosity via quadriceps tedn, patella
Action-extension at knee, flexion at hip
Term
Vastus lateralis
Definition
Origin-anterior and inferior to greater torachanter of femur
Insertion-tibial tuberosity
Action-exstention at knee
Term
Vastus medialis
Definition
Origin-entire length of linea alba
Insertion- Tibial tuberosity
Action-exstention at knee
Term
Vastus intermedius
Definition
Origin-Anterolateral surface of femur and lina aspera
Insertion-Tibial tuberosity
Action-exstention at knee
Term
Biceps femoris (long and short head)
Definition
origin-one, the long head, arises from the lower and inner impression on the back part of the tuberosity of the ischium,
short head-the other, the short head, arises from the lateral lip of the linea aspera,

Insertion-head of fibula

action-flexion at knee
Term
Semitendinosus
Definition
origin-ischial tuberosity
Insertion-proximal medial surfac of tibia
Action-flexion at knee
Term
Semimembranosus
Definition
Orgin-ischial tuberosity
Insertion-Posterior surface of medial condyle
Action-flexion at knee
Term
Gastrocnemius
Definition
Origin-femoral condyles
Insertion-calcaneus via calcaneal tendon
Action-plantar flexion at ankle
Term
Soleus
Definition
origin-head and proximal shaft of fibula
insertion-calcaneus
Action-plantar flexion at ankle
Term
Tibialis anterior
Definition
Origin-lateral condyle and proximal shaft
Insertion-base of first metatarsal bone and medial cuneiform
Action-dorsiflexion at ankle
Term
Peroneus longus
Definition
Peroneus (Fibularis) Longus: Origin Head and lateral shaft of fibula (upper 2/3)
Peroneus (Fibularis) Longus: Insertion Base of firs metatarsal; first (medial) cuneiform (plantar surface)
Peroneus (Fibularis) Longus: Action Eversion of foot; assists plantarflexion of ankle
Term
Tibialis posterior
Definition
Origin-interosseous membrane
Insertion-navicular, all three cuneforms
Action-dorsi-flextion
Supporting users have an ad free experience!