ANATOMY- Lower Extremity Muscles (CADAVER IMAGES), Nerves and Vessels of the Lower Extremity, and some bones Diagram

Sartorius

Adductor Longus

Adductor Brevis

Gracilis

Adductor Magnus

Gluteus Maximus

Gluteus Medius

Gluteus Minimus

Piriformis

Semitendinosus

Semimembranosus

Extensor Hallucis Longus

Tibialis Anterior

Fibularis Longus

Fibularis Brevis

Gastrocnemius

Soleus

Flexor Digitorum Longus

Flexor Hallucis Longus

Tibialis Posterior

Gluteus Medius

Abducts and medially rotates thigh; , Description: Above and partially under Gluteus Maximus

Rectus Femoris

A- Extends leg at the knee and flexes thigh at the hip; part of the quadriceps group, Description: Superficial, runs straight down, middle of thigh

Vastus Intermedius

ANTERIOR THIGH

Description: Underneath Rectus Femoris, between Vastus Lateralis and Vastus Mediali; , Extends knee

Vastus Medialis

B- Description: Medial aspect of thigh, under Sartorius

Long Head of the Biceps Femoris

Description: Outside of leg, under Gluteus Maximus; Flexes leg at the knee and extends thigh at the hip; belongs to the hamstring group

Semitendinosus

POSTERIOR THIGH- pointing medially

Description: Inside of leg, next to Biceps Femoris

Sartorius

ANTERIOR THIGH-

Flexes, abducts, and laterally rotates thigh at the hip; flexes knee; A long, narrow muscle running obliquely across the front of each thigh from the hipbone to the inside of the leg below the knee.

Gracilis

ANTERIOR THIGH. (pointing MEDIALLY)

Adducts thigh at the hip and flexes leg at the knee; assists in medial rotation; groin muscle

Extensor Digitorum Longus

ANTERIOR SHIN

Extends the lateral four toes; dorsiflexion of ankle and eversion of foot; Femur to Phalange

Fibularis Longus

LATERAL SHIN

ISOLATED FUNCTION: concentrically plantarflexes and everts the foot INTEGRATED FUNCTION: decelerates ankle dorsiflexion, isometrically stabilizes the foot and ankle complex

Gastrocnemius

Aids in flexion of the knee/primary mvmt is the ankle plantar flexion; toe dancer muscle, 2 bellied, calf muscles

Tibialis Posterior

POSTERIOR Tib/Fib

Is a deep muscle that lies deep to the soleus; Inverts foot; may assist in strong plantar flexion or control pronation of foot during walking

Gluteus Maximus

1 (Posterior Hip/Femur)

Gluteus Minimus

2 (Posterior Hip/Femur)

Semitendinosus

4 (Posterior Hip/Femur)

Semimembranosus

3 (Posterior Hip/Femur)

Adductor Magnus

2 (Posterior Hip/Femur)

Soleus

13

Vastus Lateralis

10

Rectus Femoris

11

Vastus Medialis

9

Vastus Intermedius

12

Tibialis Anterior

16

anterior inferior iliac spine

Name this structure:

greater sciatic notch

Name this structure:

lesser sciatic notch

Name this structure:

Ischial spine

Name this structure:

Ischial tuberosity

Name this structure:

superior pubic ramus

Name this structure:

inferior pubic ramus

Name this structure:

pubic symphysis

Name this structure:

pubic tubercle

Name this structure:

obturator foramen

Name this structure:

Head

Name this structure

Neck

Name this structure

greater trochanter

Name This structure

lesser trochanter

Patellar Surface

Patellar Surface

linea aspera

Lateral condyle

Name this structure:

MEdial condyle

Name this structure:

medial epicondyle

Name this Structure:

lateral epicondyle

Name this Structure:

lateral condyle of tibia

Name this structure:

tibial tuberosity

Name this structure:

medial malleolus

Name this structure:

fibular head

Name this structure:

lateral malleolus

Name this structure:

talus

Name this structure:

calcaneus

Name this structure:

cuboid

Name this structure:

medial cuneiform

Name this structure:

intermediate cuneiform

Name this structure:

lateral cuneiform

Name this structure:

navicular

Name this structure:

Metatarsal bones

Name these structures

Philanges

Name these structures

gluteus medius

Name this muscle:

gluteus minimus

Name this muscle:

piriformis

Name this muscle:

rectus femoris

Name this muscle:

vastus medialis

Name this muscle:

vastus intermedius

Name this muscle (posterior to rectus femoris):

vastus lateralis

Name this muscle:

pectineus

Name this muscle:

adductor brevis

Name this muscle:

adductor magnus

Name this muscle:

Obturator nerve

Branches to the adductor longus, adductor brevis, and gracilis

Sciatic nerve

Composed of the tibial and common fibular nerves within a fibrous sheath. Does not innervate any muscles itself, but its branches do. TIbial division innervates semimembranosus, semitendonosis, and the long head of the biceps femoris. Common fibular division innervates the short head of the biceps femoris. Splits into the tibial nerve and the common fibular nerve in the popliteal fossa.

fibular nerve

Wraps around the head of the fibular and then splits into the superficial fibular nerve and deep fibular nerve.

Deep fibular nerve

Innervates muscles of anterior compartment of leg.

Superficial fibular nerve

Innervates muscles of the lateral compartment of the leg.

Tibial nerve

Travels between superficial and deep posterior compartments of leg, innervating muscles in both compartments. Wraps around the medial malleolus and branches into the lateral and medial plantar nerves.

Femoral artery

Passes through adductor magnus. Extension of the external iliac artery. Supplies anterior structures of the thigh.

Deep femoral artery

Runs posteriorly and supplies the muscles of the posterior and medial regions of the thigh

Anterior tibial artery

Travels in anterior compartment of leg along with the deep fibular nerve to the tibialis anterior muscle. Becomes dorsal pedis artery as it crosses the ankle.

Dorsalis pedis artery

Runs on the dorsal aspect of the foot to supply muscles and nerves of this region.

Posterior tibial artery

Goes around medial malleolus and divides into the medial and lateral plantar arteries. May appear as a continuation of the popliteal artery with the anterior tibial artery branching off of it. Also travels between superficial and deep posterior compartments with the tibial nerve, supplying both compartments.

Fibular artery

Supplies blood to the lateral compartment of the leg.

Popliteal vein

Travels with popliteal artery, continuous with femoral vein.