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UCMT Kinesiology

Skeletal Muscles, Attachments, and Common Actions

QuestionAnswer
Name the 4 Gluteal Muscles Gluteus Minimus, Gluteus Medius, Gluteus Maximus, Tensor Fascia Latae
Which 2 Gluteal Muscles share the Greater Trochanter as a common attachment? Gluteus Minimus and Gluteus Meduis
Which 2 Gluteal Muscles share the Iliotibial Band (I.T. Band) as a common attachment? Gluteus Maximus and Tensor Fascia Latae
Name the Deep Hip Rotator Muscles in order from superior to inferior. Piriformis - Superior Gemellus - Obturator Internus & Obturator Externus - Inferior Gemellus - Quadratus Femoris
What are the common attachments and actions for the Deep Hip Rotator Muscles? Greater Trochanter - Lateral Rotation of the hip
Obturator Externus ORIGIN - Anterior Border of Obturator Foramen INSERTION - Greater Trochanter ACTION - Lateral Rotation of the hip.
Quadratus Femoris ORIGIN - Lateral Ischial Tuberosity INSERTION - Greater Trochanter ACTION- Lateral Rotation of the hip. (This is the most inferior of the deep hip rotator group.)
Inferior Gemellus ORIGIN - Ischial Tuberosity INSERTION - Greater Trochanter ACTION - Lateral Rotation of the hip.
Superior Gemellus ORIGIN - Ischial Spine INSERTION - Greater Trochanter ACTION - Lateral Rotation of the hip. (Runs anterior to sciatic nerve)
Obturator Internus ORIGIN - Posterior border of Obturator Foramen INSERTION - Greater Trochanter ACTION - Lateral Rotation of the hip
Piriformis ORIGIN - Lateral border of anteroir sacrum INSERTION - Greater Trochanter ACTION - Lateral rotation of the hip, weak abduction of the hip. (Runs posterior to sciatic nerve)
Pes Anserina Group Sartorius - Anterior thigh Gracilis - Medial thigh Semitentinosus - Posterior thigh
Intermuscular Septa The fascia between muscles to separate them into muscle compartments.
Fascia Lata The fascia of the glutes and thighs.
Crural Fascia Fascia of the crus.
Pectoral Girdle Muscles Rhomboideus Major, Rhomboideus Minor, Levator Scapulae, Trapezius, Serratus Anteroir, Pectoralis Minor, Subclavius
Which muscle(s) cause depression of the scapula(e)? Trapezius
Which muscle(s) cause adduction (retraction) of the scapula(e)? Rhomboideus Major, Rhomboideus Minor, Trapezuis
Which muscle(s) cause abduction (protraction) of the scapula(e)? Serratus anterior and pectoralis minor
Which muscle(s) cause upward rotation of the scapula(e)? Trapezuis and Serratus Anterior
Which muscle(s) cause elevation of the scapula(e)? Levator scapulae and trapezius
Which muscle(s) cause downward rotation of the scapula(e)? Rhomboideus Major, Rhomboideus Minor, Pectoralis Minor
Serratus Anterior ORIGIN - Outer surface on lateral region of the first 8 or 9 ribs. INSERTION - Medial Border of the scapula(e). ACTION - Abduction, Upward rotation, Stabilization of Scapula(e), and holds/suspends scapula
Levator Scapulae ORIGIN - Posterior tubercles of Transverse Processes C1-C4 INSERTION - Superior angle and upper medial margin of scapulae ACTION - Elevation of Scapulae (bilaterally), lateral flexion of neck (unilaterally), stabilization of scapulae
Pectoralis Minor ORIGIN - Sternal ends of ribs 3, 4 & 5 (anterior) INSERTION - medial border of corociod process ACTION - Abduction of scapula, downward rotation of scapula, active during forced breathing.
Subclavius ORIGIN - Sternal end of 1st rib INSERTION - Inferior surface of middle clavicle ACTION - downward rotation of clavicle and stabilization of clavicle
Rhomboideus Minor ORIGIN - Spinous Processes of C7 & T1, lower end of nuchal ligament INSERTION - Medial margin of scapula at base of scapular spine ACTION - Adduction of scapula, downward rotation of scapula, stabilization of scapula
Rhomboideus Major ORIGIN - Spinous processes of T2-T5 INSERTION - Medial margin of scapulae between spine and inferior angle ACTION - Adduction of scapula, downward rotation of scapula, stabilization of scapula
Trapezuis ORIGIN - Nuchal Ligament, occipital bone, spinous processes of C7-T12 INSERTION - Lateral 1/3 of clavicle, medial and superior acromion, scapular spine ACTION - Scapular upward rotation, adduction, depression, elevation, stabilization neck extension
Supraspinatus ORIGIN - Supraspinatus Fossa INSERTION - Greater Tubercle of Humerous ACTION - first 15 degrees of humoral abduction, stabilization of shoulder joint.
Infraspinatus ORIGIN - Infraspinatus fossa INSERTION - Greater tubercle of the humerous ACTION - Lateral rotation of shoulder
Teres Minor ORIGIN - Superior half on lateral border of scapula INSERTION - Greater Tubercle of Humerous ACTION - Lateral rotation of shoulder
Subscapularis ORIGIN - Subscapular fossa INSERTION - Lesser Tubercle of Humerous ACTION - Medial rotation of shoulder (Only rotator cuff muscle with medial rotation, also only rotator cuff muscle attaching at lesser tubercle of humerous.)
Pectoralis Major ORIGIN - (Clavicular head) medial 1/2 of clavicle, (Sternal head) manubrium and body of sternum INSERTION - Intertubercular groove ACTION - Shoulder Medial rotation, Shoulder Adduction, Flexion of extended shoulder
How do you stretch any muscle? Move the body towards the opposite of the muscles function(s).
Latissimus Dorsi ORIGIN - Spinous Process of T7, Posterior iliac crest INSERTION - Intertubercular groove ACTION - Shoulder adduction, shoulder medial rotation, extension of flexed arm.
Teres Major ORIGIN - Lateral Surface of scapular inferior angle INSERTION - Intertubercular groove ACTION - Shoulder Adduction, shoulder medial rotation, extension of flexed arm.
Deltiod ORIGIN - Lateral 3rd of clavicle, acromian process, scapular spine. INSERTION - deltiod tuberosity ACTION - Shoulder abduction, shoulder flexion, shoulder extension, weak medial and lateral rotation of shoulder.(Raises arm in any direction)
Rotator cuff muscles: Supraspinatus, Infraspinatus, Teres Minor, Subscapularis (S.I.T.S.)
Muscles of the intertubercular groove: Pectoralis Major, Teres Major, Latissimus Dorsi (2 Majors and a little miss)
Action(s) of Flexor Digitorum Profundus and Flexor Digitorum Superficialis Flexion of the wrist; flexion of fingers
Action(s) of Flexor Pollicis Longus Flexion of thumb and wrist
Action(s) of Pronator Quadratus and Pronator Teres Pronation of the antibrachium
Name the 3 muscles of the deep antibrachium Flexor Digitorum Profundus; Flexor Pollicis Longus; Pronatot Teres
Name the 5 Muscles of the superficial antibrachium Pronator Teres; Flexor Carpi Radialis; Palmaris Longus; Flexor Carpi Ulnaris; Flexor Digitorum Superficialis
Antibrachium Flexor common attachment Medial Epicondyle
Antibrachium Flexor comon action Flexion of wrist and fingers
Action(s) of Flexor Carpi Radialis Flexion and radial deviation of the wrist
Action(s) of Palmaris Longus Flexion of the wrist
Action(s) of Flexor Carpi Ulnaris Flexion and ulnar deviation of the wrist
What anitomical structure do the flexor group muscles pass through? The carpal tunnel
Coracobrachialis ORIGIN - Corocoid process of scapula INSERTION - Medial side of mid humoral shaft ACTION - Flextion of the shoulder
Brachialis ORIGIN - Anterior surface of distal humoral shaft INSERTION - Ulnar tuberosity and coronoid process ACTION - Flexion of the elbow
Biceps Brachii ORIGIN - (short head) corocoid process, (long head) supraglenoid tubercle INSERTION - Radial tuberosity ACTION - Flexion of shoulder; flexion of elbow; supination of antibrachium
Triceps Brachii ORIGIN - (short head) Distal half of humoral shaft; (long head) infraglenoid tubercle; (lateral head) Proximal posterior half of humerous INSERTION - Olecranon Process ACTION - Extension of shoulder; Extension of elbow
Action(s) of Brachioradialis Flexion of elbow
Action(s) of Extensor Carpi Radialis Longus and Extensor Carpi Radialis Brevis Extension and radial deviation of wrist
Action(s) of Extensor Digitorum Extension of wrist; extension of fingers
Action(s) of Extensor Digiti Minimi Extension of pinky finger
Action(s) of Extensor Carpi Ulnaris Extension and Ulnar deviation of wrist
Action(s) of Supinator Muscle Supinates the Antibrachium
Action(s) of Anconeus Muscle Extension of the elbow
Action(s) of Extensor Pollicis Longus and Extensor Pollicis Brevis Extension of Thumb and Wrist
Action(s) of Abductor Pollicis Longus Abduction of the thumb
Action(s) of Extensor Indicis Extension of the wrist and index fingerq
Antibrachium Extensor common action Extension of the Wrist
Antibrachium Extensor common attachment Lateral Epicondyle
Action(s) of Abductor Digiti Minimi Abduction of pinky finger
Action(s) of Flexor Digiti Minimi Brevis Flexes pinky finger
Action(s) of Opponens Digiti Minimi Moves pinky finger towards thumb for opposition
Action(s) of Palmaris Brevis Strengthens the grip of the hand
Action(s) of Abductor Pollicis Brevis Abduction of the thumb
Action(s) of Flexor Pollicis Brevis Flexion of the thumb
Action(s) of Opponens Pollicis Rotation of the thumb to oppose fingers
Action(s) of Adductor Pollicis Adduction of the thumb
Action(s) of Lumbrical Muscles Control of fine motor movement, helps hand sensitivity
Action(s) of Palmar Interossei (PAD) Adduction of Fingers
Action(s) of Dorsal Interossei (DAB) Abduction of Fingers
Created by: SUAHB