Muscle Attachments, actions, and innervations Flashcards
Tensor Fasciae Latae att.
Anterior superior iliac spine and iliac crest –> iliotibial tract
abduction of thigh
flexion of thigh
medially rotates thigh
maintains extended leg
tibial n. actions
plantar flexion
inversion of foot
leg: flexion
unlocks knee
flexion of toes 1-5
What attaches to shaft of phalangeal?
flexor digitorum brevis and plantar and dorsal interowsei.
Superior gluteal n. actions
thigh: abducts, medially rotates, flexes
leg: assists in maintaining extended leg
keeps pelvis level while one leg is raised
Different between gluteus medius and minimus attachemtn
medius is lateral aspect of greater trochanter minimus is anterior-lateral aspect of greater trochanter
What attaches to external surface of inferior pubic ramus?
gracilis, adductor brevis, obturator externus
Lateral head of triceps att.
proximal posterior lateral shaft of humerus to olcranon process of ulna
extension of the forearm
Axillary n. actions
arm: abduction, flexion, extension, medial rotation, lateral rotation
stabalization of glenohumeral joint
Tibialis posterior att.
interosseous membrane, lateral tibia and medial fibula –> medial tarsals and metatarsals
plantar flexion of ankle
inverts foot
semitendinosus att.
(medial to biceps femoris and semimembranosus) ischial tuberosity –> proximal, medial tibia
felxor hallucis longus att.
distal posterior fibula and interosseous membrane –> plantar surface of distal phalangeal bases of 1st toe
flexes great toe MP and IP
plantar flexes ankle
median plantar n. actions
flexes 1-5
abducts great toe
extend IP joints 1,2
What attaches to iliac crest??
iliacus, latissimus doris, tensor fasciae latae
Teres major att.
inferior angle of scapula –> medial lip of intertubercular sulcus of humerus
medial rotation of humerus
humeral adduction
Musculocutaenous n. actions
arm: flexion, adduction
forearm: flexion, supination
What attaches to iliac fossa
iliacus m.
medial and lateral pectoral n. actions
arm: adduction, medial rotation, flexion
scapula: protraction, depression
What attaches to shaft of femur?
adductor brevis, longus magus, beicpes femoris (short), pectineus, vastus in, l, m
extensor hallucis brevis att.
anteriorlateral calcaneus –> dorsal aspect of base of proximal phalanx of big toe
extends big toe at MP joint
what attaches to the ulna?
supinator
abductor pollicis longus
extendors pollicis longus
extensor indicis
pronator quatratus
pronator teres
What attaches to calcaneal tuberosity?
calcaneal tendon, abductor digiti mini, abductor hallucis, felxor digitorum accessorius, flexor digitorum brevis.
Vastus Medialis vs. lateralis vs intermedius att.
Both medialis and lateralis attach posterior aspect of femur, while intermedius attaches anterior.
What attaches to gluteal surface of ilium?
gluteus medius, gluteus minimus, gluteus maximus
Semimembranosus att.
ischial tuberosity –> posterior aspect of medial tibial condyle
extends thigh
flexes leg