Kinesiology Flashcards
Sternocleidomastoid
Action
Unilaterally:
Laterally flex the head and neck to the same side.
Rotate the head and neck to the opposite side.
Bilaterally:
Flex the neck.
Assist to elevate the ribcage during inhalation.
Sternocleidomastoid
Origin
Sternal Head:
Top of manubrium.
Clavicle Head:
Medial one-third of the clavicle.
Sternocleidomastoid
Insertion
Mastoid process of temporal bone and the lateral portion of superior nuchal line of occiput.
All Scalenes
Action
Unilaterally:
With ribs fixed, laterally flex the head and the neck to the same side. (All)
Bilaterally:
Elevate the ribs during inhalation. (All)
Flex the head and neck. (Anterior)
Anterior Scalene
Origin
Transverse process of third through sixth cervical vertebrae. (Anterior Tubicles)
Anterior Scalene
Insertion
First rib.
Middle Scalene
Origin
Transverse processes of second through 7th cervical vertebrae. (Posterior Tubercles)
Middle Scalene
Insertion
First rib.
Posterior Scalene
Origin
Transverse processes of sixth and seventh cervical vertebrae. (Posterior Tubercles)
Posterior Scalene
Insertion
Second rib.
Biceps Brachii
Action
Flex the elbow. (Humeroulnar Joint)
Supinate the forearm. (Radioulnar Joints)
Flex the shoulder. (Glenohumeral Joint)
Biceps Brachii
Origin
Short Head:
Coracoid process of scapula.
Long Head:
Supraglenoid tubercle of scapula.
Biceps Brachii
Insertion
Tuberosity of the raduis and aponeurosis of the buceps brachii.
Triceps Brachii
Action
All Heads:
Extend the elbow. (Humeroulnar Joint)
Long Head:
Extend the shoulder. (Glenohumeral Joint)
Adduct the shoulder. (G/H Joint)
Triceps Brachii
Origin
Long Head:
Infraglenoid tubercle of the scapula.
Lateral Head:
Posterier surface of the proximal half of the humerus.
Medial Head:
Posterior surface of distal half of humerus.
Triceps Brachii
Insertion
Olecranon process of the ulna.
Deltoid
Action
All Fibers:
Abduct the shoulder. (Glenohumeral Joint)
Anterior Fibers:
Flex the shoulder. (G/H Joint)
Medially rotate the shoulder. (G/H Joint)
Horizontally adduct the shoulder. (G/H Joint)
Posterior Fibers:
Extend the shoulder. (G/H Joint)
Laterally rotate the shoulder. (G/H joint)
Horizontally abduct the shoulder. (G/H Joint)
Deltoid
Origin
Lateral one-third of the clavicle, arcomion and spine of scapula.
Deltoid
Insertion
Deltoid tuberosity.
Latissimus Dorsi
Action
Extend the shoulder. (Glenohumeral Joint)
Adduct the shoulder. (G/H Joint)
Medially rotate the shoulder. (G/H Joint)
Latissimus Dorsi
Origin
Inferior angle of the scapula, spineous processes of the last 6 ribs thoracic vertebrae, last three or four ribs, thoracolumbar fascia and posterior illiac crest.
Latissimus Dorsi
Insertion
Intertubercular groove of the humerus.
Pectoralis Major
Action
All Fibers:
Adduct the shoulder. (Glenohumeral Joint)
Medially rotate the shoulder. (G/H Joint)
Assist the elevate the thorax during forced inhalation. (With the arm fixed)
Upper Fibers:
Flex the shoulder. (G/H Joint)
Horizontally Adduct the shoulder. (G/H Joint)
Lower Fibers:
Extends the shoulder. (G/H Joint)
Pectoralis Major
Origin
Medial half of the clavicle, sternum and cartilage of first through sixth ribs.
Pectoralis Major
Insertion
Crest of greater tubercle of humerus.
Supraspinatus
Action
Abduct the shoulder. (G/H Joint)
Stabilize the head of the humerus in the glenoid cavity.
Supraspinatus
Origin
Supraspinous fossa of the scapula.
Supraspinatus
Insertion
Greater tubercle of the humerus.
Infraspinatus
Action
Laterally rotate the shoulder. (G/H Joint)
Adduct the shoulder. (G/H Joint)
Stabilize the head of the humerus in the glenoid cavity.
Infraspinatus
Origin
Infraspinous fossa of the scapula.
Infraspinatus
Insertion
Greater tubercle of the humerus.
Teres Minor
Action
Laterally rotate the shoulder. (G/H Joint)
Adduct the shoulder. (G/H Joint)
Stabilize the head of the humerus in the glenoid cavity.
Teres Minor
Origin
Upper two-thirds of lateral border of the scapula.
Teres Minor
Insertion
Greater tubercle of the humerus.
Subscapularis
Action
Medially rotate the shoulder. (G/H Joint)
Stabilize the head of the humerus in the glenoid cavity.
Subscapularis
Origin
Subscapular fossa of the scapula.
Subscapularis
Insertion
Lesser tubercle of the humerus.
Levator Scapula
Action
Unilaterally:
Elevate the scapula. (S/T Joint)
Downwardly rotate the scapula. (S/T Joint)
Laterally Flex the head and the neck.
Rotate the head and neck to the same side.
Bilaterally:
Extend the head and the neck.
Levator Scapula
Origin
Transverse processes of the first through fourth cervical vertebrae.
Levator Scapula
Insertion
Medial border of the scapula, between superior angle and superior portion of the spine of the scapula.
Trapezius
Action
Upper Fibers:
Bilaterally
Extend the head and the neck.
Unilaterally: Laterally flex the head and the neck to the same side.
Rotate the head and the neck to the opposite side.
Elevate the scapula. (S/T Joint)
Upwardly rotate the scapula. (S/T Joint)
Middle Fibers:
Adduct the scapula. (S/T Joint)
Stabilize the scapula. (S/T Joint)
Lower Fibers:
Depress the scapula (S/T Joint)
Upwardly rotate the scapula. (S/T Joint)
Trapezius
Origin
External occipital protuberance, the medial portion of the superior nuchal line of the occiput, ligamentum nuchae, and spinous processes of C-7 through T-12
Trapezius
Insertion
Lateral one-third of clavicle, acromion, and spine of the scapula.
Rhomboid Major and Minor
Action
Adduct the scapula. (S/T Joint)
Elevate the scapula. (S/T Joint)
Downwardly rotate the scapula. (S/T Joint)
Rhomboid Major and Minor
Origin
Major:
Spinous Processes of T-2 to T-5
Minor:
Spinous processes of C-7 to T-1
Rhomboid Major and Minor
Insertion
Major:
Medial border of the scapula between the spine of the scapula and the inferior angle.
Minor:
The upper portion of the medial border of the scapula, across from the spine of the scapula.
Pectoralis Minor
Action
Depress the scapula. (S/T Joint)
Abduct the scapula. (S/T Joint)
Downwardly rotate the scapula. (S/T Joint)
With the scapula fixed:
Assist to elevate the thorax during forced inhalation.
Pectoralis Minor
Origin
Third, fourth and fifth ribs.
Pectoralis Minor
Insertion
Medial surface of the coracoid process of the scapula.
Quadricep Femoris Group
Action
All:
Extend the knee. (T/F Joint)
Rectus Femoris:
Flex the hip. (Coxal Joint)
Quadricep Femoris Group
Origin
Rectus Femoris:
Anterior inferior iliac spine. (AIIS)
Vastus Medialis:
Medial lip of linea aspera.
Vastus Lateralis:
Lateral lip of linea aspera, gluteal tuberosity, and greater trochanter.
Vastus Intermedius:
The anterior and lateral shaft of the femur.
Quadricep Femoris Group
Insertion
Tibial tuberosity. (Via the patella and patellar ligament.)
Bicep Femoris
Action
Flex the knee. (T/F Joint)
Laterally rotate the flexed knee. (T/F Joint)
Long Head:
Extend the knee. (Coxal Joint)
Long Head:
Assist to laterally rotate the hip. (Coxal Joint)
Tilt the pelvis posteriorly.
Bicep Femoris
Origin
Long Head:
Ischial tuberosity.
Short Head:
Lateral lip of linea aspera.
Bicep Femoris
Insertion
Head of the fibula.
Semitendinosus
Action
Flex the knee. (T/F Joint)
Medially rotate the flexed knee. (T/F Joint)
Extend the hip. (Coxal Joint)
Assist to medially rotate the hip. (Coxal Joint
Tilt the pelvis posteriorly.
Semitendinosus
Origin
Ischial tuberosity.
Semitendinosus
Insertion
The proximal, medial shaft of the tibia at pes anserinus tendon.
Gastrocnemius
Action
Flex the knee. (T/F Joint)
Plantar Flex the ankle. (Talocrural Joint)
Gastrocnemius
Origin
Condyles of the femur, posterior surfaces.
Gastrocnemius
Insertion
Calcaneus via calcaneal tendon.
Soleus
Action
Plantar flex the ankle. (Talocrural Joint)
Soleus
Origin
Soleal line; the proximal, posterior surface of the tibia and posterior aspect of the head of the fibula.
Soleus
Insertion
Calcaneus via the calcaneal tendon.
Tibialis Anterior
Action
Invert the foot.
Dorsiflex the ankle. (Talorural Joint)
Tibialis Anterior
Origin
Lateral condyle of the tibia; the proximal lateral surface of the tibia and interosseous membrane.
Tibialis Anterior
Insertion
Medial cuneiform and base of the first metatarsal.