MuscleTables
7
MuscleTables
Table7-3
MUSCLE
PROXIMAL
ATTACHMENT
(ORIGIN)
DISTAL
ATTACHMENT
(INSERTION)
INNERVATION
MAIN ACTIONS
BLOOD SUPPLY
MUSCLE
GROUP
Gluteus medius
Lateral surface of ilium
between anterior
and posterior gluteal
lines
Lateral surface of
greater
trochanter of
femur
Superior gluteal
nerve
Abducts and medially
rotates thigh at hips;
steadies pelvis on
leg when opposite
leg is raised
Superior gluteal
artery
Gluteal region
Gluteus minimus
Lateral surface of ilium
between anterior
and inferior gluteal
lines
Anterior surface
of greater
trochanter of
femur
Superior gluteal
nerve
Abducts and medially
rotates thigh at hips;
steadies pelvis on
leg when opposite
leg is raised
Main trunk and deep
branch of
superior gluteal
artery
Gluteal region
Gracilis
Body and inferior ramus
of pubis
Superior part of
medial surface
of tibia
Obturator nerve
Adducts thigh, flexes and
medially rotates leg
Profunda femoris
artery, medial
circumflex
femoral artery
Medial thigh
Iliacus (Iliopsoas)
Superior 2/3 of iliac
fossa, iliac crest, ala
of sacrum, anterior
sacro-iliac ligaments
Lesser trochanter of
femur and shaft
inferior to it, to
psoas major
tendon
Femoral nerve
Flexes thigh at hips and
stabilizes hip joint,
acts with psoas
major
Iliac branches of
iliolumbar artery
Anterior thigh
Inferior gamellus
Ischial tuberosity
Medial surface of
greater
trochanter of
femur
Nerve to quadratus
femoris
Laterally rotates
extended thigh at the
hip
Medial circumflex
femoral artery
Gluteal region
Lumbricals
Tendons of flexor
digitorum longus
Medial side of
dorsal digital
expansions of
lateral 4 digits
Medial one:
medial
plantar nerve
Lateral three
: lateral
plantar nerve
Flexes proximal
phalanges at MTP
joint, extends
phalanges at PIP
and DIP joints
Lateral plantar artery
and plantar
metatarsal
arteries
Foot
Obturator
externus
Margins of obturator
foramen, obturator
membrane
Trochanteric fossa
of femur
Obturator nerve
Laterally rotates thigh,
stabilizes head of
femur in acetabulum
Medial circumflex
femoral artery,
obturator artery
Medial thigh
Obturator
internus
Pelvic surface of
obturator membrane
and surrounding
bone
Medial surface of
greater
trochanter of
femur
Nerve to obturator
internus
Laterally rotates
extended thigh,
abducts flexed thigh
at hip
Internal pudendal
and obturator
arteries
Gluteal region
Pectineus
Superior ramus of pubis
Pectineal line of
femur
Femoral nerve and
sometimes
obturator nerve
Adducts and flexes thigh
at hip
Medial circumflex
femoral artery,
obturator artery
Medial thigh
Piriformis
Anterior surface of sacral
segments 2–4,
sacrotuberous
ligament
Superior border of
greater
trochanter of
femur
Ventral rami of L5,
S1, S2
Laterally rotates
extended thigh,
abducts flexed thigh
at hip
Superior and inferior
gluteal arteries,
internal
pudendal artery
Gluteal region
Plantar
interossei
(three
muscles)
Bases and medial sides
of 3rd through 5th
metatarsals
Medial sides of
bases of
proximal
phalanges of
3rd through 5th
digits
Lateral plantar nerve
Adduct digits (2–4)
and flex
metatarsophalangeal
joint and extend
phalanges
Lateral plantar artery
and plantar
arch, plantar
metatarsal and
plantar digital
arteries
Foot
Plantaris
Inferior end of lateral
supracondylar line of
femur and oblique
popliteal ligament
Posterior aspect of
calcaneus via
calcaneal
tendon
Tibial nerve
Weakly assists
gastrocnemius
Popliteal artery
Posterior leg
Popliteus
Lateral aspect of lateral
condyle of femur,
lateral meniscus
Posterior tibia
superior to
soleal line
Tibial nerve (L4–S1)
Weakly flexes knee and
unlocks it by rotating
femur on fixed tibia
Inferior medial and
lateral genicular
arteries
Posterior leg
Psoas major
(Iliopsoas)
Transverse processes of
lumbar vertebrae,
sides of bodies of
T12–L5 vertebrae,
intervening
intervertebral discs
Lesser trochanter of
femur
Ventral rami of first
lumbar nerve
Acting superiorly with
iliacus, flexes hip;
acting inferiorly,
flexes vertebral
column laterally;
used to balance
trunk in sitting
position; acting
inferiorly with iliacus,
flexes trunk
Lumbar branches of
iliolumbar artery
Anterior thigh
Quadratus
femoris
Lateral margin of ischial
tuberosity
Quadrate tubercle
on
intertrochanteric
crest of femur
Nerve to quadratus
femoris
Laterally rotates thigh at
hip
Medial circumflex
femoral artery
Gluteal region
