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K East
All 21 Muscles For The Kinesiology East Exam
Question | Answer |
---|---|
A: Unilaterally: Laterally flexes the head and neck to the same side Rotates the head and neck to the opposite side Bilaterally: Flexes the neck Assist in inhalation (elevation of the rib cage) | Sternocleidomastoid |
O: Sternal head: Top of menubrium Clavicular head: Medial one-third of the clavicle | Sternocleidomastoid |
I: Mastoid process of temporal bone Lateral portion of superior nuchal line of occiput | Sternocleidomastoid |
A: Bilaterally: Elevate the ribs during inhalation (All) Flex the head and neck (anterior) Unilaterly: WITH RIB FIXED, latterly flex the head and neck to the same side (All) Rotate head and neck to the opposite side (All) | Scalenes |
O: Transverse processes: Anterior: third to sixth cervical vertebrae Middle: second to the seventh cervical vertebrae Posterior: fifth and sixth cervical vertebrae | Scalenes |
I: Anterior and middle: 1st rib Posterior: 2nd rib | Scalenes |
A: Flexes the elbow Supinates the forearm Flexes the shoulder | Biceps brachii |
O: Short head:Coracoid process of scapula Long head:Suprangeloid tubercle of scapula | Biceps brachii |
I: Tuberosity of radius and aponeurosis of biceps brachii | Biceps brachii |
A: All heads: Extends the elbow Long head: Extends the shoulder (glenohumeral joint) Adducts the shoulder | Triceps brachii |
O: Long head: Infraglenoid tubercle of scapula Lateral head: Posterior surface of proximal half of humerus Medial head: Posterior surface of distal half of humerous | Triceps brachii |
I: Olecranon process of ulna | Triceps brachii |
A: All Fibers: Abduct the shoulder (glenohumeral joint) Anterior fibers: Flex the shoulder Medially rotate the shoulder Horizontally adduct the shoulder Posterior fibers: Extend the shoulder Laterally rotate the shoulder Horizontally abduct the | Deltoid |
O: Lateral one-third of clavicle, acromion and spine of scapula | Deltoid |
I: Deltoid tuberosity | Deltoid |
A: All fibers: Abduct the shoulder (glenohumeral joint) Anterior fibers: Flex the shoulder Medially rotate the shoulder Horizontally adduct the shoulder Posterior fibers: Extend the shoulder Laterally rotate the shoulder Horizontally abduct the | Pectoralis major |
O: Medial half of clavicle, sternum, cartilage of ribs first thru sixth ribs | Pectoralis major |
I: Crest of greater tubercle of humerus | Pectoralis major |
A: Extends the shoulder (glenohumeral joint) Adducts the shoulder Medially rotates the shoulder | Lastissimus dorsi |
O: Spinous processes of last six thoracic vertebrae, last three or four ribs, thoracolumbar aponeurosis and posterior iliac crest | Lastissimus dorsi |
I: Crest of the lesser tubercle of the humerus | Lastissimus dorsi |
A: Abducts the shoulder (glenohumeral joint) Stabilizes head of humerus in glenoid cavity | Supraspinatus |
O: Supraspinous fossa of scapula | Supraspinatus |
I: Greater tubercle of humerus | Supraspinatus |
A: Laterally rotates the shoulder (glenohumeral joint) Adducts the shoulder Extends the shoulder Horizontally abducts the shoulder Stabilizes head of humerus in glenoid cavity | Infraspinatus |
O: Infraspinous fossa of scapula | Infraspinatus |
I: Greater tubercle of humerus | Infraspinatus |
A: Laterally rotates the shoulder (glenohumeral joint) Adducts the shoulder Extends the shoulder Horizontally abducts the shoulder Stabilizes head of humerus in glenoid cavity | Teres minor |
O: Superior half of lateral border of scapula | Teres minor |
I: Greater tubercle of humerus | Teres minor |
A: Medially rotates the shoulder (glenohumeral joint) Stabilize head of humerus in glenoid cavity | Subascapularis |
O: Subscapular fossa of the scapula | Subascapularis |
I: Lesser tubercle of the humerus | Subascapularis |
A: Unilaterlly: Elevates the scapula Downwardly rotates the scapula Laterally flexes the head and neck Rotates the head and neck to the same side Bilaterlly: Extends the head and neck | Lavator scapula |
O: Transverse Processes of the first through fourth cervical vertebrae | Lavator scapula |
I: Upper region of medial border and superior angle of scapula | Lavator scapula |
A:1 Upper fibers: Bilateral Extend the head and neck Unilateral: Laterally flex the head and neck to the same side Rotate the head and neck to the opposite side Elevate the scapula Upwardly rotate the scapula | Trapezius |
A:2 Middle fibers adduct the scapula Stabilize the scapula Lower fibers: Depress the scapula Upwardly rotate the scapula | Trapezius |
O: External occipital protuberance, medial portion of superior nuchal line or occiput, ligamentum nuchae, and spinous processes of C7 through T12 | Trapezius |
I: Lateral one-third of clavicle, acromion and spine of scapula | Trapezius |
A: Adducts the scapula (scapulothoracic joint) Elevates the scapula Downwardly rotates the scapula | Rhomboids |
O: Minor: Spinous processes of C7 and T1 Major: Spinous processes of T2 to T5 | Rhomboids |
I: Major: Medial border of the scapula between the spine and inferior angle Minor: Upper portion of the medial border of the scapula, across from spine of the scapula | Rhomboids |
A: Depress the scapula Abducts the scapula Assists in forced inhalation (if scapula is fixed) | Pectoralis minor |
O: Third, fourth and fifth ribs | Pectoralis minor |
I: Coracoid process of scapula | Pectoralis minor |
A: With the origin fixed: Abducts the scapula Depresses the scapula Holds the medial border of scapula against the rib cage If scapula is stabilized: May act in forced inhalation | Serratus anterior |
O: Surfaces of upper eight or nine ribs | Serratus anterior |
I: Anterior surface of medial border of scapula | Serratus anterior |
A: All extend the knee Rectus femoris: flexes the hip | Quadriceps group |
O: Rectus femoris: Anterior inferior iliac spine (AIIS) Vastus lateralis: Lateral lip of linea aspera, gluteal tuberosity Vastus medialis: Medial tip of linea aspera Vastus intermedius: Anterior and lateral shaft of the femur | Quadriceps group |
I: Tibial tuberosity | Quadriceps group |
A: All: Flex the knee Extend the hip Tilt the pelvis posteriorly Biceps Femoris: Laterally rotates the hip Laterally rotates the flexed knee Semitendinosus and Semimembranosus: Medially rotate the hip Medially rotate the flexed knee | Hamstring group |
O: Both Semis and Long head of Biceps Femoris: Ishial tuberosity Short head of Biceps Femoris: Lateral lip of linea aspera | Hamstring group |
I: Biceps Femoris: Head of fibula Semitendinosus: Proximal, medial shaft of the tibia at pes anserinus tendon Semimembranosus: Posterior aspect of medial condyle of tibia | Hamstring group |
A: Flexes the knee Plantar flexes the ankle | Gastrocnemius |
O: Condyles of femur, posterior surfaces | Gastrocnemius |
I: Calcaneus via calcaneal tendon | Gastrocnemius |
A: Plantar flexes the ankle | Soleus |
O: Soleal line and posterior surface of tibia, proximal, posterior surface of fibula | Soleus |
I: Calcaneus via calcaneal tendon | Soleus |
A: Inverts the foot Dorsiflexes the ankle | Tibialis anterior |
O: Proximal lateral surface of tibia, interosseous membrane | Tibialis anterior |
I: Medial cuneiform, base of the first metatarsal | Tibialis anterior |