FRONTALIS - A: (Action) Elevates eyebrows in glancing upward and Name the muscle, expressions of surprise or fright; draws A: (Action), O: scalp forward and wrinkles skin of (Origin), and I: forehead; O: (Origin) Galea aponeurotica; (Insertion) I: (Insertion) Subcutaneous tissue of eyebrows
OCCIPITALIS - A: (Action) Retracts Name the muscle, scalp; fixes galea aponerotica so frantalis A: (Action), O: can act on eyebrows; O: (Origin) Superior (Origin), and I: nuchal line and temporal bone; I: (Insertion) (Insertion) Galea aponeurotica
ORBICULARIS OCULI - A: (Action) Sphincter of eyelids; closes eye in blinking, Name the muscle, squinting, and sleep; aids in flow of tears A: (Action), O: across eye; O: (Origin) Lacrimal bone; (Origin), and I: adjacent regions of frontal bone and (Insertion) maxilla; medial angle of eyelids; I: (Insertion) Upper and lower eyelids; skin around margin of orbit
ORBICULARIS ORIS - A: (Action) Name the muscle, Encircles mouth, closes lips, protrudes lips A: (Action), O: as in kissing; uniquely developed in (Origin), and I: humans for speech; O: (Origin) Modiolus (Insertion) of mouth; I: (Insertion) Submucosa and dermis of lips
BUCCINATOR - A: (Action) Compresses cheek against teeth and gums; directs food between molars; retracts cheek from teeth Name the muscle, when mouth is closing to prevent biting A: (Action), O: cheek; expels air and liquid; O: (Origin) (Origin), and I: Alveolar processes on lateral surfaces of (Insertion) mandible and maxilla; I: (Insertion) Orbicularis oris; submucosa of cheek and lips PLATYSMA - A: (Action) Draws lower lip and angle of mouth downward in Name the muscle, expressions of horror or surprise; may aid A: (Action), O: in opening mouth widely; O: (Origin) (Origin), and I: Fascia of deltoid and pectoralis major; I: (Insertion) (Insertion) Mandible; skin and subcutaneous tissue of lower face
Name the muscle, HYOGLOSSUS - A: (Action) Depresses A: (Action), O: tongue; O: (Origin) Body and greater horn (Origin), and I: of hyoid bone; I: (Insertion) Lateral and (Insertion) inferior surfaces of tongue
TEMPORALIS - A: (Action) Elevation, Name the muscle, retraction, and lateral and medial excursion A: (Action), O: of the mandible; O: (Origin) Temporal (Origin), and I: lines and temporal fossa of cranium; I: (Insertion) (Insertion) Coronoid process and anterior border of mandibular ramus
MASSETER - Elevation of mandible, with Name the muscle, smaller roles in protraction, retraction, and A: (Action), O: lateral and medial excursion; O: (Origin) (Origin), and I: Zygomatic arch; I: (Insertion) Lateral (Insertion) surface of mandibular ramus and angle
MEDIL PTERYGOID - A: (Action) Elevation, protraction, and lateral and Name the muscle, medial excursion of the mandible; O: A: (Action), O: (Origin) Medial surface of lateral pterygoid (Origin), and I: plate; palatine bone; lateral surface of (Insertion) maxilla near molar teeth; I: (Insertion) Medial surface of mandibular ramus and angle LATERAL PTERYGOID - A: (Action) Depression (In wide opening of the mouth), protraction, and lateral and medial Name the muscle, excursion of the mandible; O: (Origin) A: (Action), O: Lateral surfaces of lateral pterygoid plate; (Origin), and I: greater wing of sphenoid; I: (Insertion) (Insertion) NeckSTERNOCLEIDOMASTOID of mandible (just below condyle); - A: (Action)articular Unilateral disc action and capsule tilts head of slightly upward andtemporomandibular toward the opposite joint side, as in looking over one's contralateral shoulder. The most common action is probably Name the muscle, rotating the head to the left or right. A: (Action), O: Bilateral action draws the head straight (Origin), and I: forward and down, as when eating or (Insertion) reading. Aids in deep breathing when head is fixed.; O: (Origin) Manubrium of sternum; medial one third of clavicle; I: (Insertion)TRAPEZIUS Mastoid - A: (Action)process; lateralExtends half and of laterally flexessuperior neck.; nuchal O: (Origin) line External Name the muscle, occipital protuberance; medial one-third of A: (Action), O: superior nuchal line; nuchal ligament; (Origin), and I: spinous processor of vertebrae C7-T3 or (Insertion) T4; I: (Insertion) Acromion and spine of DIAPHRAGMscapula; lateral - A: one-third (Action) of Prime clavicle mover of inspiration (responsible for about two-thirds of air intake); contracts in preparation for sneezing, coughing, crying, Name the muscle, laughing, and weight lifting; contraction A: (Action), O: compresses abdominal viscera and aids in (Origin), and I: childbirth and expulsion of urine and feces; (Insertion) O: (Origin) Xiphoid process of sternum; ribs and costal cartilages 7-12; lumbar vertebrae;EXTERNAL I: (Insertion) INTERCOSTALS Central tendon - A: of (Action) When diaphragmscalenes fix rib 1, external intercostals elevate and protract ribs 2-12, Name the muscle, expanding the thoracic cavity and creating A: (Action), O: a partial vacuum causing inflow of air; (Origin), and I: exercise a braking action during expiration (Insertion) so that expiration is not overly abrupt.; O: (Origin) Inferior margins of ribs 1-11; I: (Insertion) Superior margin of next lower rib INTERNAL INTERCOSTALS - A: (Action) In inspiration, the intercartilagous part aids in elevating the ribs and expanding the thoracic cavity; in Name the muscle, expiration, the interosseous part depresses A: (Action), O: and retracts the ribs, compressing the (Origin), and I: thoracic cavity and expelling air; the latter (Insertion) occurs only in forceful expiration, not in EXTERNALrelaxed breathing.; ABDOMINAL O: (Origin) OBLIQUE Superior - marginsA: (Action) and costalSupports cartilages abdominal of ribs viscera 2-12; againstmargin pull of sternum; of gravity; I: (Insertion) stabilizes vertebralInferior columnmargin during ofheavy next lifting;higher ribmaintains posture; compresses abdominal organs, Name the muscle, thus aiding in forceful expiration of breath A: (Action), O: and in expulsion of abdominopelvic (Origin), and I: contents during childbirth, urination, (Insertion) defecation, and vomiting; unilateral contraction causes contralateral rotation of waist; O: (Origin) Ribs 5-12; I: (Insertion) AnteriorINTERNAL half ABDOMINALof iliac crest; symphysis OBLIQUE and - A: (Action)superior Same margin as external of pubis oblique Name the muscle, except that unilateral contraction causes A: (Action), O: ipsilateral rotation of waist; O: (Origin) (Origin), and I: Inguinal ligament; iliac crest; (Insertion) thoracolumbar fascia; I: (Insertion) Ribs 10-12; costal cartilages 7-10; pubis
RECTUS ABDOMINIS - A: (Action) Name the muscle, Flexes lumbar region of vertebral column, A: (Action), O: producing forward bending at the waist; O: (Origin), and I: (Origin) Pubic symphysis and superior (Insertion) margin of pubis; I: (Insertion) Xiphoid process; costal cartilages 5-7
ERECTOR SPINAE - A: (Action) Extension and lateral flexion of vertebral column; the longissimus capitis also Name the muscle, produces ipsilateral rotation of the head; O: A: (Action), O: (Origin) Nuchal ligament; ribs 3-12; (Origin), and I: thoracic and lumbar vertebrae; median and (Insertion) lateral sacral crests; thoracolumbar fascia; I: (Insertion) Mastoid process; cervical and thoracic vertebrae; all ribs ERECTOR SPINAE: ILIOCOSTALIS - A: (Action) Extension and lateral flexion of vertebral column; the longissimus capitis Name the muscle, also produces ipsilateral rotation of the A: (Action), O: head; O: (Origin) Nuchal ligament; ribs (Origin), and I: 3-12; thoracic and lumbar vertebrae; (Insertion) median and lateral sacral crests; thoracolumbar fascia; I: (Insertion) Mastoid ERECTORprocess; cervical SPINAE: and thoracicLONGISSIMUS vertebrae; - allA: (Action) Extensionribs and lateral flexion of vertebral column; the longissimus capitis Name the muscle, also produces ipsilateral rotation of the A: (Action), O: head; O: (Origin) Nuchal ligament; ribs (Origin), and I: 3-12; thoracic and lumbar vertebrae; (Insertion) median and lateral sacral crests; thoracolumbar fascia; I: (Insertion) Mastoid process;ERECTOR cervical SPINAE: and thoracic SPINALIS vertebrae; - A: all (Action) Extensionribs and lateral flexion of vertebral column; the longissimus capitis Name the muscle, also produces ipsilateral rotation of the A: (Action), O: head; O: (Origin) Nuchal ligament; ribs (Origin), and I: 3-12; thoracic and lumbar vertebrae; (Insertion) median and lateral sacral crests; thoracolumbar fascia; I: (Insertion) Mastoid process; cervical and thoracic vertebrae; all QUADRATUS ribsLUMBORUM - A: (Action) Aids respiration by fixing rib 12 and stabilizing inferior attachments of Name the muscle, diaphragm. Unilateral contraction causes A: (Action), O: ipsilateral flexion of lumbar vertebral (Origin), and I: column; bilateral contraction extends (Insertion) lumbar vertebral column.; O: (Origin) Iliac crest; iliolumbarligament; I: (Insertion) Rib 12, vertebrae L1-L4
EXTERNAL URETHRAL SPHINCTER - Name the muscle, A: (Action) Retains urine in bladder until A: (Action), O: voluntarily voided; O: (Origin) Ischiopubic (Origin), and I: rami; I: (Insertion) Encircles urethral (Insertion) orifice COMPRESSOR URETHRAE - A: Name the muscle, (Action) Aids in urine retention; found in A: (Action), O: females only; O: (Origin) Ischiopubic rami; (Origin), and I: I: (Insertion) Right and left compressor (Insertion) urethrae meet as muscular sheet inferior to external urethral sphincter
EXTERNAL ANAL SPHINCTER - A: Name the muscle, (Action) Retains feces in rectum until A: (Action), O: voluntarily voided; O: (Origin) Coccyx; (Origin), and I: perineal body; I: (Insertion) Encircles anal (Insertion) canal and orifice
PECTORALIS MINOR - A: (Action) With serratus anterior, draws scapula laterally Name the muscle, and forward around chest wall; with other A: (Action), O: muscles, rotates scapula and depresses apex (Origin), and I: of shoulder, as in reaching down to pick up (Insertion) a suitcase; O: (Origin) Ribs 3-5 and overlying fascia; I: (Insertion) Coracoid process of scapula LEVATOR SCAPULAE - A: (Action) Elevates scapula if cervical vertebrae are Name the muscle, fixed; flexes neck laterally if scapula is A: (Action), O: fixed; retracts scapula and braces shoulder; (Origin), and I: rotates scapula and depresses apex of (Insertion) shoulder; O: (Origin) Transverse processes of vertebrae C1-C4; I: (Insertion) Superior angle to medial border of scapula
RHOMBOIDEUS MINOR - A: (Action) Name the muscle, Retracts scapula and braces shoulder; fixes A: (Action), O: scapula during arm movements; O: (Origin), and I: (Origin) Spinous processes of vertebrae (Insertion) C7-T1; nuchal ligament; I: (Insertion) Medial border of scapula Name the muscle, RHOMBOIDEUS MAJOR - A: (Action) A: (Action), O: Same as rhomboideus minor; O: (Origin) (Origin), and I: Spinous processes of vertebrae T2-T5; I: (Insertion) (Insertion) Medial border of scapula
PECTORALIS MAJOR - A: (Action) Flexes, adducts, and medially rotates Name the muscle, humerus, as in climbing or hugging; aids in A: (Action), O: deep inspiration; O: (Origin) Medial half of (Origin), and I: clavicle;LATISSIMUS lateral margin DORSI of -sternum; A: (Action) costal (Insertion) Adductscartilages and 1-7; medially aponeurosis rotates of humerus; external extendsoblique; the shoulderI: (Insertion) joint Lateral as in pulling lip of on the oarsintertubercular of a rowboat; sulcus produces of humerus backward swing of arm in such actions as walking and bowling; with hands grasping overhead Name the muscle, objects, pulls body forward and upward, as A: (Action), O: in climbing; aids in deep inspiration, (Origin), and I: sudden expiration such as sneezing and (Insertion) coughing, and prolonged forceful expiration as in singing or blowing a sustained note on a wind instrument; O: (Origin)DELTOID Vertebrae - A: (Action) T7-L5; Anterior lower three fibers or fourflex andribs; medially iliac crest; rotate thoracolumbar arm; lateral fascia; fibers abduct arm; posterior fibers extend and Name the muscle, I: (Insertion) Floor of intertubercular sulcus laterally rotate arm; involved in arm A: (Action), O: of humerus swinging during such actions as walking or (Origin), and I: bowling, and in adjustment of hand height (Insertion) for various manual tasks; O: (Origin) Acromion and spone of scapula; clavicle; I: (Insertion) Deltoid tuberosity of humerus
SUPRASPINATUS - A: (Action) Aids Name the muscle, deltoid in abductions of arm; resists A: (Action), O: downward slippage of humeral head when (Origin), and I: arm is relaxed or when carrying weight; O: (Insertion) (Origin) Supraspinous fossa of scapula; I: (Insertion) Greater tubercle of humerous INFRASPINATUS - A: (Action) Name the muscle, Modulates action of deltoid, preventing A: (Action), O: humeral head from sliding upward; rotates (Origin), and I: humerous laterally; O: (Origin) (Insertion) Infraspinous fossa of scapula; I: (Insertion) Greater tuberclue of humerus
TERES MINOR - A: (Action) Modulates action of deltoid, preventing humeral head Name the muscle, from sliding upward as arm is abducted; A: (Action), O: rotates humerous laterally; O: (Origin) (Origin), and I: Lateral border and adjacent posterior (Insertion) surface of scapula; I: (Insertion) Greater tubercle of humerus; posterior surface of joint capsule
SUBSCAPULARIS - A: (Action) Modulates action of deltoid, preventing Name the muscle, humeral head from sliding upward as arm A: (Action), O: is abducted; rotates humerus medially; O: (Origin), and I: (Origin) Subscapular fossa of scapula; I: (Insertion) (Insertion) Lesser tubercle of humerus; anterior surface of joint capsule
BRACHIALIS - A: (Action) Prime mover Name the muscle, of elbow flexion; O: (Origin) Anterior A: (Action), O: surface of distal half of humerus; I: (Origin), and I: (Insertion) Coronoid process and tuberosity (Insertion) of ulna
BICEPS BRACHII - A: (Action) Rapid or forceful supination of forearm; synergist in elbow flexion; slight shoulder flexion; Name the muscle, tendon of long head stabilizes shoulder by A: (Action), O: holding humeral head against glenoid (Origin), and I: cavity; O: (Origin) Long head-superior (Insertion) margin of glenoid cavity; Short head-coracoid process; I: (Insertion) Tuberosity of radius; fascia of forearm TRICEPS BRACHII - A: (Action) Extends elbow; long head extends and adducts Name the muscle, humerus; O: (Origin) Long head-inferior A: (Action), O: margin of glenoid cavity and joint capsule; (Origin), and I: Lateral head-posterior surface of proximal (Insertion) end of humerus; Medial head-posterior surface of entire humeral shaft; I: (Insertion) Olecranon; fascia of forearm
Name the muscle, BRACHIORADIALIS - A: (Action) Flexes A: (Action), O: elbow; O: (Origin) Lateral supracondylar (Origin), and I: ridge of humerus; I: (Insertion) Lateral (Insertion) surface of radius near styloid process
ANCONEUS - A: (Action) Extends elbow; Name the muscle, may help to control ulnar movement during A: (Action), O: pronation; O: (Origin) Lateral epicondyle (Origin), and I: of humerus; I: (Insertion) Olecranon and (Insertion) posterior surface of ulna
PRONATOR QUADRATUS - A: (Action) Prime mover of forearm pronation; also Name the muscle, resists separation of radius and ulna when A: (Action), O: force is applied to forearm through wrist, as (Origin), and I: in doing push-ups; O: (Origin) Anterior (Insertion) surface of distal ulna; I: (Insertion) Anterior surface of distal radius
PRONATOR TERES - A: (Action) Assists pronator quadratus in pronation, but only in Name the muscle, rapid or forceful action; weakly flexes A: (Action), O: elbow; O: (Origin) Humeral shaft near (Origin), and I: medial epicondyle; coronoid process of (Insertion) ulna; I: (Insertion) Lateral surface of radial shaft SUPINATOR - A: (Action) Supinates Name the muscle, forearm; O: (Origin) Lateral epicondyle of A: (Action), O: humerus; supinator crest and fossa of ulna (Origin), and I: just distal to radial notch; anular and radial (Insertion) collateral ligaments of elbow; I: (Insertion) Proximal one-third of radius
FLEXOR CARPI RADIALIS - A: (Action) Name the muscle, Flexes wrist anteriorly; aids in radial A: (Action), O: flexion of wrist; O: (Origin) Medial (Origin), and I: epicondyle of humerus; I: (Insertion) Base (Insertion) of metacarpals II-II
FLEXOR CARPI ULNARIS - A: (Action) Name the muscle, Flexes wrist anteriorly; aids in ulnar flexion A: (Action), O: of wrist; O: (Origin) Medial epicondyle of (Origin), and I: humerus; medial margin of olecranon; (Insertion) posterior surface of ulna; I: (Insertion) Pisiform; hamate; metacarpal V
Name the muscle, FLEXOR POLLICIS LONGUS - A: A: (Action), O: (Action) Flexes phalanges of thumb; O: (Origin), and I: (Origin) Radius; interosseous membrane; I: (Insertion) (Insertion) Distal phalanx I
EXTENSOR CARPI RADIALIS Name the muscle, LONGUS - A: (Action) Extends wrist; aids A: (Action), O: in radial flexion of wrist; O: (Origin) (Origin), and I: Lateral supracondylar ridge of humerus; I: (Insertion) (Insertion) Base of metacarpal II EXTENSOR CARPI ULNARIS - A: (Action) Extends and fixes wrist when fist Name the muscle, is clenched or hand grips an object; aids in A: (Action), O: ulnar flexion of wrist; O: (Origin) Lateral (Origin), and I: epicondyle of humerus; posterior; I: (Insertion) (Insertion) Base of metacarpal V surface of ulnar shaft
EXTENSOR POLLICIS BREVIS - A: Name the muscle, (Action) Extends metacarpal I and A: (Action), O: proximal phalanx of thumb; O: (Origin) (Origin), and I: Shaft of radius; interosseous membrane; I: (Insertion) (Insertion) proximal phalanx I
EXTENSOR POLLICIS LONGUS - A: (Action) Extends distal phalanx I; aids in Name the muscle, extending proximal phalanx I and A: (Action), O: metacarpal I; adducts and laterally rotates (Origin), and I: thumb; O: (Origin) Posterior surface of (Insertion) ulna; interosseous membrane; I: (Insertion) Distal phalanx I ILIACUS - A: (Action) Flexes thigh at hip when trunk is fixed; flexes trunk at hip when thigh is fixed, as in bending forward Name the muscle, in a chair or setting up in bed; balances A: (Action), O: trunk during sitting; O: (Origin) Iliac crest (Origin), and I: and fossa; superolateral region of sacrum; (Insertion) anterior sacroiliac and iliolumbar ligaments; I: (Insertion) Lesser trochanter and nearby shaft of femur
PSOAS MAJOR - A: (Action) Same as Name the muscle, iliacus; O: (Origin) Bodies and A: (Action), O: intervertebral discs of vertebrae T12-L5; (Origin), and I: transverse processes of lumbar vertebrae; I: (Insertion) (Insertion) Lesser trochanter and nearby shaft of femur. TENSOR FASCIAE LATAE - A: (Action) Extends knee, laterally rotates tibia, aids in abduction and medial rotation of femur; Name the muscle, during standing, steadies pelvis on femoral A: (Action), O: head and steadies femoral condyles on (Origin), and I: tibia; O: (Origin) Iliac crest; anterior (Insertion) superiorGLUTEUS spine; MAXIMUS deep surface - A:of fascia(Action) lata; I:Extends (Insertion) thigh Lateral at hip ascondyle in stair of climbing tibia via (rising to next step)iliotibial or running band and walking (backswing of limb); abducts thigh; elevates trunk after stooping; prevents Name the muscle, trunk from pitching forward during A: (Action), O: walking and running; helps stabilize femur (Origin), and I: on tibia; O: (Origin) Posterior gluteal line (Insertion) of ilium, on posterior surface from iliac crest to posterior superior spine; coccyx; posterior surface of lower sacrum; aponeurosis of erector spinae; I: (Insertion) GlutealGLUTEUS tuberosity MEDIUS of femur; - A: (Action) lateral condyleAbduct and medially rotate thigh; during walking, Name the muscle, of tibia via iliotibial band shift weight of trunk toward limb with foot A: (Action), O: on the ground as other foot is lifted; O: (Origin), and I: (Origin) Most of lateral surface of ilium (Insertion) between crest and acetabulum; I: (Insertion) Greater trochanter of femur
PIRIFORMIS - A: (Action) Laterally Name the muscle, rotates extended thigh; abducts flexed A: (Action), O: thigh; O: (Origin) Anterior surface of (Origin), and I: sacrum; gluteal surface of ilium; capsule of (Insertion) sacroiliac joint; I: (Insertion) Greater trochanter of femur
Name the muscle, QUADRATUS FEMORIS - A: (Action) A: (Action), O: Laterally rotates thigh; O: (Origin) Ischial (Origin), and I: tuberosity; I: (Insertion) Intertrochanteric (Insertion) crest of femur RECTUS FEMORIS - A: (Action) Extends Name the muscle, knee; flexes thigh at hip; flexes trunk on A: (Action), O: hip if thigh is fixed; O: (Origin) Ilium at (Origin), and I: anterior inferior spine and superior margin (Insertion) of acetabulum; capsule of hip joint; I: (Insertion) See quadriceps femoris above
BICEPS FEMORIS - A: (Action) Flexes knee; extends hip; elevates trunk from stooping posture; laterally rotates tibia on Name the muscle, femur when knee is flexed; laterally rotates A: (Action), O: femur when hip is extended; counteracts (Origin), and I: forward bending at hips; O: (Origin) Long (Insertion) head-ischial tuberosity; Short head-linea aspera and lateral supracondylar line of femur; I: (Insertion) Head of fibula SEMITENDINOSUS - A: (Action) Flexes knee; medially rotates tibia on femur when Name the muscle, knee is flexed; medially rotates femur when A: (Action), O: hip is extended; counteracts forward (Origin), and I: bending at hips; O: (Origin) Ischial (Insertion) tuberosity; I: (Insertion) Medial surface of upper tibia
SEMIMEMBRANOSUS - A: (Action) Name the muscle, Same as semitendinosus, O: (Origin) A: (Action), O: Ischial tuberosity; I: (Insertion) Medial (Origin), and I: condyle and nearby margin of tibia; (Insertion) intercondylar line and lateral condyle of femur; ligament of popliteal region
POPLITEUS - A: (Action) Rotates tibia medially on femur if femur is fixed (as in sitting down), or rotates femur laterally on Name the muscle, tibia if tibia is fixed (as in standing up); A: (Action), O: unlocks knee to allow flexion; may prevent (Origin), and I: forward dislocation of femur during (Insertion) crouching; O: (Origin) Lateral condyle of femur; lateral meniscus and joint capsule; I: (Insertion) Posterior surface of upper tibia TIBIALIS ANTERIOR - A: (Action) Dorsiflexes and inverts foot; resists backward tipping of body (as when Name the muscle, standing on a moving boat deck); helps A: (Action), O: support medial longitudinal arch of foot; O: (Origin), and I: (Origin) Lateral condyle and lateral margin (Insertion) of proximal half of tibia; interosseous membrane; I: (Insertion) Medial cuneiform, metatarsal I
GASTROCNEMIUS - Plantar flexes foot, Name the muscle, flexes knee; active in walking, running and A: (Action), O: jumping; O: (Origin) Condyles, popliteal (Origin), and I: surface, and lateral supracondylar line of (Insertion) femur; capsule of knee joint; I: (Insertion) Calcaneus
SOLEUS - A: (Action) Plantar flexes foot; Name the muscle, steadies leg on ankle during standing; O: A: (Action), O: (Origin) Posterior surface of head and (Origin), and I: proximal one-fourth of fibula; middle (Insertion) one-third of tibia; interosseous membrane; I: (Insertion) Calcaneus
GLUTEUS MINIMUS - A: (Action) Abduct and medially rotate thigh; during Name the muscle, walking, shift weight of trunk toward limb A: (Action), O: with foot on the ground as other foot is (Origin), and I: lifted; O: (Origin) Most of lateral surface of (Insertion) ilium between crest and acetabulum; I: (Insertion) Greater trochanter of femur