Study Sheet Appendicular Flashcards
What are the actions of….
Superior fibers: Elevate the superiorly rotate scapula.
Middle Fibers: Retract scapula
Inferior Fibers: Depress scapula
(Trapezius)
What is the origin and insertion of…
Origin: Occipital bone (superior nuchal line); ligamentum nuchae; spinous processes of C7-T12
Insertion: Clavicle; acromion process and spine of scapula
What are the actions of…?
Agonist of arm extension; also adducts and medially rotates arm.
(Latissimus dorsi)
What is the origin and insertion of…
Origin: Spinous processes of T7-T12; ribs 8-12; iliac crest; thoracolumbar fascia
Insertion: Intertubercular Sulcus of humerus
What are the actions of…
Anterior Fibers: Flex and medially rotate arm.
Middle Fibers: Agonist of arm abduction.
Posterior Fibers: Extend and laterally rotate arm.
What is the origin and insertion of….
Origin: Acromial end of clavicle; acromion and spine of scapula
Insertion: Deltoid Tuberosity of humerous
What is the function of…
Agonist of arm flexion; also adducts and medially rotates arm. Also horizontally adducts the arm.
(Pectoralis major)
What is the origin and insertion of…
Origin: Medial clavicle; costal cartilages of ribs 2-6; body of sternum.
Insertion: Lateral part of intertubercular sulcus of humerus
Function/Action of…
(Bicep brachii) Flexes forearm, powerful supinator of forearm. Long head flexes arm.
Origin and Insertion of…
Origin:
- Long head: Supraglenoid tubercle of scapula
- Short head: Coracoid process of scapula
Insertion:
- radial tuberosity and bicipital aponeurosis.
Function/Action of…
(psoas major): flexes thigh
Origin and Insertion of…
Origin: Transverse processes and bodies of T12-L5 vertebrae.
Insertion: Lesser trochanter of fumer with iliacus.
Function/Action of…
Iliacus: Flexes thigh
What is the origin and insertion of…
Origin: Iliac fossa
Insertion: Lesser trochanter of femur with psoas major
This muscle group is a combination of what two muscles?
Iliopsoas
What is the function/action of…
Extends thigh; laterally rotates thigh
(Gluteus maximus)
What is the origin and insertion of…
Origin: Iliac crest, sacrum, coccyx
Insertion: Iliotibial tract of fascia lata; linea aspera and gluteal tuberosity of femur
What is the function/action of…
Flexes thigh, extends leg
(rectus femoris)
What is the origin and insertion of?
Origin: Anterior Inferior iliac spine
Insertion: Quadriceps tendon to patella and then patellar ligament to tibial tuberosity
What is the function of…
Dorsiflexes foot, inverts foot
(Tibialis anterior)
What is the origin and insertion of
Origin: Lateral condyle and proximal shaft of tibia; interosseous membrane
Insertion: Metatarsal I and first (medial) cuneiform
What is the function/action…
Flexes leg; plantar flexes foot
(gastrocnemius)
What is the origin and insertion of…
Origin: Superior posterior surfaces of lateral and medial condyles of femur
Insertion: Calcaneus (via calcaneal tendon)
