Term
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Definition
| origin: frontal and maxilla; Insertion: encircles eye; Action: closes eyelids (sphincter of eyelids); Innervation: CN7 facial |
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Term
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Definition
| O: superficial tissue around mouth; Insertion: encircles Lip; Action: Sphincter of mouth (closes lips); Innervation: CN7 facial |
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Term
| skeletal muscle has _______ |
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Definition
| Innervation to every cell |
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Term
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Definition
| Immovable or less moveable attachment |
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Term
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Definition
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Term
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Definition
| O: fascia of pectoral and deltoid regions; Insert: mandible and skin of lower face; Act: depresses mandible and angle of mouth; Innervation: CN7 |
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Term
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Definition
| O:zygomatic; INS:corner of mouth; ACT:raises angle of mouth; INNERVAT: CN7 |
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Term
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Definition
| O:mandible; INS: corner of mouth; ACT: depresses corner of mouth; INN: CN7 |
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Term
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Definition
| O:mandible; INS: skin of the chin; ACT:protrudes lower lip and wrinkles chin; INNERVATION: CN7 |
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Term
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Definition
| O:superficial tissue of forehead; INS:skin of forehead above eyebrows; ACT:raises eyebrow and wrinkles forehead; INNER:CN7 |
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Term
| masseter (muscles of mastication) |
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Definition
| O: zygomatic, temporal; INS:mandible; ACT:elevates mandible (closes jaw); INNERVA: CN5 (trigeminal) |
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Term
| Temporalis (muscles of Mastication) |
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Definition
| O:frontal, parietal; INS:mandible; ACT:elevates and retracts mandible (closes jaw); INNERV:CN5 (trigeminal) |
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Term
| genioglossus (extrinsic muscle of the tongue) |
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Definition
| O:mandible; INS:tip and base of tongue, hyoid; ACT:retracts and protrudes tongue; INNERVATION: CN12 (hypoglossal) |
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Term
Muscles of the neck
STERNOCLEIDOMASTOID |
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Definition
| O:manubrium of sternum, clavicle; INSERT:mastoid process of temporal bone; ACT:unilateral contraction turns the head to the opposite side; INNERV: CN11 (accessory) |
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Term
Sternohyoid
(infrahyoid muscles)
Muscles of the neck |
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Definition
| O: manubrium of sternum; INS:hyoid bone; ACT:depresses larynx and hyoid during phonation & swallowing; INNERV:ansa cervicalis |
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Term
STERNOTHYROID
infrahyoid muscles
muscles of the neck |
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Definition
| O:manibrium of the sternum; INS:thyroid cartilage; ACT:depress larynx during phonation and swallowing; INNERV:ansa cervicalis |
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Term
EXTERNAL INTERCOSTAL
same as INTERNAL INTERCOSTAL:
muscles if the Thorax and Abdomen |
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Definition
| O:RIB; INS:RIB; ACT:aids in respiration; INNERV:intercostal nerves |
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Term
DIAPHRAGM
muscles of the thorax and abdomen |
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Definition
| O:inferior border of the rib cage and sternum, lumbar vert. 1-3; INSERTION: central tendon; ACTION:prime mover of respiration; INERV:phernic nerve |
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Term
EXTERNAL ABDOMINAL OBLIQUE
muscles of the Thorax and Abdomen |
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Definition
| O: ribs 5-12; INSER:linea alba via rectus sheath; ACTION:compresses abdominal contents, rotate trunk; INNERV:intercostal nerves |
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Term
| internal abdominal oblique: muscles of the thorax and abdomen |
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Definition
| O:lumbodorsal fascia, ilium, inguinal ligament; INSERT:linea alba via rectus sheath, ribs 10-12; ACTION:compresses abdominal contents, rotate trunk; INNERV:intercostal nerves |
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Term
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Definition
| O:ribs 5-12, inguinal ligament,ilium, lumbodorsal fascia; INS:linea alba via rectus sheath, ribs 5-7; ACTION:compresses abdominal contents, rotate trunk; INNERV:intercostal nerves |
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Term
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Definition
| O:Pubis; INS:xiphoid and costal cartilages of ribs 5-7; ACT:compresses abdominal contents and flexes trunk; INNERV:intercostal nerves |
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Term
ERECTOR SPINAE
(true back muscles)
iliocostalis
longissimus
spinalis |
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Definition
| O:ilium & sacrum; INS:vertebrae, ribs, spine and skull; ACT:BILATERAL... extends the trunk, neck, & head, UNILATERAL... laterally flexes trunk, neck & head; INNERV: dorsal rami |
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Term
splenius capitis
(true back muscles) |
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Definition
| O:cervical vertebrae; INS:occipital bone; ACTION:bilateral: extend head unilateral: extend & laterally rotate head; INERV:dorsal rami |
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Term
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Definition
| O:scapula, clavicle; INS:humerus; ACT:flexes & extends arm, strongly abducts arm; INNERV: axilary nerve |
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Term
| Shoulder muscles: trapezius |
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Definition
| O:occipital bone, nuchal ligament, vertebrae C7 T12; INS:scapula, clavicle; ACT:stabilizes, retracts, elevates & depresses scapula; INNERV:CN11 (accessory) |
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Term
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Definition
| O:ilium, vertebrae T6-L5; INS:humerus; ACT:extends & adducts arm; INNERV:brachial plexus |
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Term
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Definition
| O:scapula; INS:humerus; ACTION: medially rotate & adduct arm; INNERV:brachial plexus |
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Term
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Definition
| O:upper 9 ribs on anterolateral chest wall; INS:scapula; ACT:protracts & holds scapula against posterior chest wall; INNERV:brachial plexus |
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Term
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Definition
| O:clavicle, sternum, costal cartilage 1-6; INS:humerus; ACTION:medially rotates & adducts arm; INNERV:pectoral nerves |
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Term
supraspinatus
(rotator cuff muscles) |
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Definition
| O:scapula; INS:humerus; ACT:stabilizes shoulder joint & weakly abducts arm; INERV:brachial plexus |
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Term
infraspinatus
(rotator cuff muscles) |
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Definition
| O:scapula; INS:humerus; ACT:stabilizes shoulder joint & laterally rotates arm; INERV:brachial plexus |
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Term
teres minor
(rotator cuff muscles) |
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Definition
| O:scapula; INS:humerus; ACT:stabilizes shoulder joint & laterally rotates arm; INERV:brachial plexus |
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Term
subscapularis
(rotator cuff muscles) |
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Definition
| O:scapula; INS:humerus; ACT:stabilizes shoulder joint & MEDIALLY rotates arm; INERV:brachial plexus |
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Term
coracobrachialis
(Anterior (flexor) compartment)
ARM |
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Definition
| O:scapula; INS:humerus; ACT:weakly flexes arm; INNERV:musculocutaneous n. |
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Term
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Definition
| O:scapula; INS:radius; ACT:flexes arm, flexes & supinates forearm INNERV:musculocutaneous n. |
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Term
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Definition
| O:humerus; INS:ulna; ACT:flexes forearm; INNERV:musculocutaneous n. |
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Term
triceps brachii
long head |
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Definition
| O:scapula; INS:ulna; ACT:extends arm & forearm INNERV:radial nerve |
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Term
triceps brachii:
medial and lateral heads |
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Definition
| O:humerus; INS:ulna; ACT: extends forearm INNERV:radial nerve |
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Term
anterior (flexor) compartment
(muscles of the forearm) |
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Definition
| O:humerus, radius, and ulna; INS:carpals, metacarpals and phalanges; ACT:flexes wrist & fingers, pronates forearm; INNERV:median & ulnar nerves, median nerve |
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Term
posterior (extensor) compartment
(muscles of the forearm) |
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Definition
| O:humerus, radius, and ulna; INS:carpals, metacarpals and phalanges; ACT:extend wrist & fingers, supinates forearm; INNERV:radial nerve |
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Term
| Muscles of the hand: interossei |
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Definition
| O:metacarpals; INS:proximal phalanx; ACT:abducts & adducts fingers; INNERV:ulnar nerve |
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Term
Muscles of the hand:
opponens pollicis |
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Definition
| O:carpals; INS:1st metacarpal; ACT:opposition of thumb; INNERV:median nerve |
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Term
Muscles of the Lower Limb:
Muscles of the gluteal region:
gluteus maximus |
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Definition
| O:ilium, sacrum; INS:femur and the IT tract (iliotibial tract); ACT:extands and laterally rotates thigh; INNERV: gluteal nerves |
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Term
Muscles of the Lower Limb:
Muscles of the gluteal region:
gluteus medius |
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Definition
| O:ilium; INS:femur; ACT:abducts thigh; INNERV:gluteal nerves |
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Term
Muscles of the Lower Limb:
Muscles of the anterior thigh compartment:
quadriceps femoris:
RECTUS FEMORIS |
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Definition
| O:ilium; INS:tibia via patellar ligament; ACT:extends leg, flexes thigh; INNERV:femoral nerve |
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Term
Muscles of the Lower Limb:
Muscles of the anterior thigh compartment:
quadriceps femoris:
VASTUS LATERALIS, VASTUS MEDIALIS, and VASTUS INTERMEDIUS (all the same) |
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Definition
| O:ilium; INS:tibia via patellar ligament; ACT:extends leg; INNERV:femoral nerve |
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Term
Muscles of the Lower Limb:
Muscles of the anterior thigh compartment:
iliopsoas
(iliacus & psoas major) |
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Definition
| O: illium and lumbar vertebrae; INS:femur; ACT:flexes thigh; INNERV:femoral nerve |
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Term
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Definition
| O:ilium; INS:tibia; ACT:flexes thigh and leg, laterally rotates thigh; INNERV:femoral nerve |
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Term
Muscles of the Lower Limb:
Muscles of the posterior thigh compartment (hamstring muscles):
SEMITENDINOSUS/SEMIMEMBRANOSUS |
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Definition
| O:ischium; INS:tibia; ACT:flexes leg, extends thigh; INNERV:sciatic nerve |
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Term
Muscles of the Lower Limb:
Muscles of the posterior thigh compartment (hamstring muscles):
BICEPS FEMORIS |
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Definition
| O:ischium, femur; INS:fibula; ACT:flexes leg, extends thigh; INNERV:sciatic nerve |
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Term
Muscles of the Lower Limb:
Muscles of the medial (adductor) thigh compartment:
ADDUCTOR MAGNUS |
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Definition
| O:ischium & pubis; INS:femur; ACTION adducts and extends thigh; INNERV:obturator and sciatic nerve |
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Term
Muscles of the Lower Limb:
Muscles of the medial (adductor) thigh compartment:
ADDUCTOR LONGUS |
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Definition
| O:ischium & pubis; INS:femur; ACTION adducts thigh; INNERV:obturator nerve |
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Term
Muscles of the Lower Limb:
Muscles of the medial (adductor) thigh compartment:
gracilis |
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Definition
| ORIG:ischium & pubis; INS:tibia; ACT:adduct thigh, medially rotate leg; INNERV:obturator nerve |
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Term
Muscles of the Lower Limb:
Muscles of the anterior compartment of the leg:
TIBIALIS ANTERIOR |
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Definition
| O:tibia; INSERT:first metatarsal and medial cuneiform; ACT: dorsiflexes and inverts foot; INNERV:deep fibular (peroneal nerve) |
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Term
Muscles of the Lower Limb:
Muscles of the anterior compartment of the leg:
EXTENSOR DIGITORUM LONGUS |
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Definition
| ORIG:tibia; INSERT: toes2-5; ACT:dorsiflex digits 2-5; INNERV:deep fibular (peroneal nerve) |
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Term
Muscles of the Lower Limb: Muscles of the lateral compartment of the leg:
FIBULARIS (peroneus) LONGUS |
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Definition
| ORIG:fibula; INSERT:first metetarsal and medial cuneiform; ACT:plantarflexes & everts foot; INNERV:superficial fibular (peroneal) nerve |
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Term
Muscles of the Lower Limb: Muscles of the lateral compartment of the leg:
FIBULARIS (peroneus)BREVIS |
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Definition
| ORIG:fibula; INS:fifth metatarsal ACT:plantarflexes & everts foot; INNERV:superficial fibular(peroneal) nerve |
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Term
Muscles of the posterior compartment of the leg:
GASTROCNEMIUS |
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Definition
| O:femoral condyles; INS:calcaneus via achilles tendon; ACT:flexes leg & plantarflexes foot; INNERV:tibial nerve |
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Term
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Definition
| tibia, fibula calcaneus via achilles tendon plantar flexes the foot tibial nerve |
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