Muscles & Innervations Flashcards
Tensor Fasciae Lata
Superficial Group of the Gluteal Region.
Abducts Thigh/Hip Joint. Stabilizes knee in extension.
Superior Gluteal Nerve.
Gluteus Maximus
Superficial Group of the Gluteal Region.
Extends Flexed Thigh/Hip Joint. Lateral stabilizer of hip & knee.
Inferior Gluteal Nerve.
Gluteus Medius
Superficial Group of the Gluteal Region.
Abducts and medially rotates the thigh/hip joint.
Superior Gluteal Nerve.
Gluteus Minimus
Superficial Group of the Gluteal Region.
Abducts and medially rotates the thigh/hip joint.
Superior Gluteal Nerve.
Piriformis
Deep Group of the Gluteal Region.
Lateral rotator of the thigh/hip joint. Abducts flexed thigh/hip joint.
Nerve to piriformis (S1 & S2).
Gemellus Superior
Deep Group of the Gluteal Region.
Lateral rotator of the thigh/hip joint. Abducts flexed thigh/hip joint.
Nerve to Obturator Internus.
Obturator Internus
Deep Group of the Gluteal Region.
Lateral rotator of the thigh/hip joint. Abducts flexed thigh/hip joint.
Nerve to Obturator Internus.
Gemellus Inferior
Deep Group of the Gluteal Region.
Lateral rotator of the thigh/hip joint. Abducts flexed thigh/hip joint.
Nerve to Quadratus Femoris
Quadratus Femoris
Deep Group of the Gluteal Region.
Lateral rotator of the thigh/hip joint.
Nerve to Quadratus Femoris.
Semitendinosus
Posterior Compartment of the Thigh.
Flexes the leg/knee joint. Extends the thigh/hip joint.
Sciatic Nerve (Tibial Part).
Semimembranosus
Posterior Compartment of the Thigh.
Flexes the leg/knee joint. Extends the thigh/hip joint.
Sciatic Nerve (Tibial Part).
Biceps Femoris
Posterior Compartment of the Thigh.
Flexes the leg/knee joint. (Long & Short Head) Extends the thigh/hip joint. (Long Head only)
Sciatic Nerve: Tibial Part for Long Head, Common Fibular Part for Short Head.
Rectus Femoris
Anterior Compartment of the thigh. Part of the Quadriceps.
Extends the leg/knee joint. Flexes the thigh/hip joint.
Femoral Nerve.
Vastus Intermedius
Anterior Compartment of the thigh. Part of the Quadriceps.
Extends the leg/knee joint.
Femoral Nerve.
Vastus Lateralis
Anterior Compartment of the thigh. Part of the Quadriceps.
Extends the leg/knee joint.
Femoral Nerve.
Vastus Medialis
Anterior Compartment of the thigh. Part of the Quadriceps.
Extends the leg/knee joint.
Femoral Nerve.
Ilio-psoas
Anterior Compartment of the thigh.
Originates in posterior abdomen as iliacus and psoas-major. Flexes thigh/hip joint.
Anterior rami L1-L3/Femoral Nerve
Sartorius
Anterior Compartment of the Thigh.
Flexes thigh/hip joint. Flexes leg/knee joint.
Femoral Nerve.
Adductor Longus
Medial Compartment of the Thigh.
Adducts and medially rotates the thigh/hip joint.
Obturator Nerve.
Adductor Brevis
Medial Compartment of the Thigh.
Adducts and medially rotates the thigh/hip joint.
Obturator Nerve.
Adductor Magnus
Medial Compartment of the Thigh.
Adducts and medially rotates the thigh/hip joint.
Obturator Nerve - Adductor Part.
Sciatic (Tibial) nerve - hamstring part
Pectineus
Medial Compartment of the Thigh.
Adducts and flexes thigh/hip joint.
Femoral and Obturator Nerve.
Gracilis
Medial Compartment of the Thigh.
Adducts thigh and flexes leg/knee joint.
Obturator Nerve.
Obturator Externus
Medial Compartment of the Thigh.
Laterally rotates thigh/hip joint.
Obturator Nerve.
Gastrocnemius
Superficial Posterior Compartment of the Leg.
Plantarflexes foot at ankle joint and flexes leg at knee.
Tibial Nerve
Plantaris
Superficial Posterior Compartment of the Leg.
Plantarflexes foot at ankle joint and flexes leg at knee.
Vestigial.
Tibial Nerve
Soleus
Superficial Posterior Compartment of the Leg.
Plantarflexes foot at ankle.
Tibial Nerve
Popliteus
Deep Posterior Compartment of the Leg.
Unlocks knee.
Tibial nerve.
Flexor Digitorum Longus
Deep Posterior Compartment of the Leg.
Flexes lateral 4 toes
Tibial nerve.
Flexor Hallucis Longus
Deep Posterior Compartment of the Leg.
Flexes big toe.
Tibial nerve.
Tibialis Posterior
Deep Posterior Compartment of the Leg.
Plantarflexion & Inversion of foot at ankle joint. Support arch of foot.
Tibial nerve.
Tibialis Anterior
Anterior Compartment of the Leg.
Dorsiflexion and Inversion of foot at ankle joint. Support arch of foot.
Deep fibular nerve.
Extensor Digitorum Longus
Anterior Compartment of the Leg.
Dorsiflexion of foot at ankle joint. Extension of lateral 4 toes.
Deep fibular nerve.
Extensor Hallucis Longus
Anterior Compartment of the Leg.
Dorsiflexion of foot at ankle joint. Extends big toe.
Deep fibular nerve.
Fibularis Tertius
Anterior Compartment of the Leg.
Dorsiflexion and Eversion of foot at ankle joint.
Deep fibular nerve.
Extensor Digitorum Brevis
Dorsum of the Foot
Extension of toes 2-4.
Deep fibular nerve.
Extensor Hallucis Brevis
Dorsum of the Foot.
Extension of the Metatarsal-phalangeal joint of the big toe.
Deep fibular nerve.
Fibularis Longus
Lateral Compartment of the Leg
Eversion of foot at ankle joint. Supports arch of foot.
Superficial fibular nerve.
Fibularis Brevis
Lateral Compartment of the Leg
Eversion of foot at ankle joint.
Superficial fibular nerve.
Abductor Hallucis
Layer 1 of the Foot
Abducts the big toe
Medial Plantar Nerve
Flexor Digitorum Brevis
Layer 1 of the Foot
Flexes toes
Medial Plantar Nerve
Abductor Digiti Minimi (Foot)
Layer 1 of the Foot
Abducts small toe
Lateral Plantar Nerve
Quadratus Plantae
Layer 2 of the Foot
Assists in flexion of digits
Lateral Plantar Nerve
Lumbricals (Foot)
Layer 2 of the Foot
Flexion at the MTP and extension at IP
1st lumbrical- Medial Plantar Nerve
2nd-4th lumbrical- Lateral Plantar Nerve
Flexor Digiti Minimi Brevis
Layer 3 of the Foot
Flexes little toe
Lateral Plantar Nerve
Flexor Hallucis Brevis
Layer 3 of the Foot
Flexes big toe
Medial Plantar Nerve
Adductor Hallucis
Layer 3 of the Foot
Adducts big toe
Lateral Plantar Nerve
Plantar Interossei (Foot)
Layer 4 of the Foot
Adduct toes. 3 muscles.
Lateral Plantar Nerve
Dorsal Interossei (Foot)
Layer 4 of the Foot
Abduct toes. 4 muscles.
Lateral Plantar Nerve.