Podcast
Questions and Answers
What are the primary actions of the gluteus maximus muscle, and which nerve innervates it?
What are the primary actions of the gluteus maximus muscle, and which nerve innervates it?
The gluteus maximus primarily extends and laterally rotates the thigh, and it is innervated by the inferior gluteal nerve.
Identify the origin and insertion points of the gluteus medius muscle.
Identify the origin and insertion points of the gluteus medius muscle.
The gluteus medius originates from the posterior surface of the ilium and inserts on the lateral aspect of the greater trochanter.
Describe the action and innervation of the gluteus minimus muscle.
Describe the action and innervation of the gluteus minimus muscle.
The gluteus minimus is responsible for the abduction and medial rotation of the thigh and is innervated by the superior gluteal nerve.
What are the actions of the tensor fascia latae muscle, and where does it insert?
What are the actions of the tensor fascia latae muscle, and where does it insert?
Signup and view all the answers
How do the actions of the gluteus medius and gluteus minimus differ?
How do the actions of the gluteus medius and gluteus minimus differ?
Signup and view all the answers
Which muscle in the gluteal region is primarily responsible for lateral rotation of the femur, and what is its innervation?
Which muscle in the gluteal region is primarily responsible for lateral rotation of the femur, and what is its innervation?
Signup and view all the answers
What action do both the gluteus medius and gluteus minimus muscles perform, and what is their common innervation?
What action do both the gluteus medius and gluteus minimus muscles perform, and what is their common innervation?
Signup and view all the answers
Identify the origin and insertion of the tensor fascia latae muscle and its primary action.
Identify the origin and insertion of the tensor fascia latae muscle and its primary action.
Signup and view all the answers
Which muscle originates from the ischial tuberosity and what action does it primarily contribute to?
Which muscle originates from the ischial tuberosity and what action does it primarily contribute to?
Signup and view all the answers
What is the main action of the quadratus femoris and where does it insert?
What is the main action of the quadratus femoris and where does it insert?
Signup and view all the answers
Study Notes
Superficial Gluteal region
Muscle
Origin
Insertion
Action
Innervation
Gluteus maximus
Posterior surface of ilium
Gluteal tuberosity and iliotibial tract
Extension and lateral rotation
Inferior gluteal nerve
Gluteus medius
Posterior surface of the ilium,
Lateral aspect of greater trochanter
Abduction and medial rotation
Superior gluteal nerve
Gluteus minimus
Iliac crest
Anterior aspect of greater trochanter
Abduction and medial rotation
Superior gluteal nerve
Tensor fascia latae
Anterior iliac crest, ASIS
Iliotibial tract - attaches to lateral condyle of the tibia
Flexes
Superior gluteal nerve
Deep Gluteal Region
Muscle
Origin
Insertion
Action
Innervation
Piriformis
Anterior aspect of sacrum
Greater trochanter of femur
Lateral rotation and abduction
Nerve to piriformis
Obturator Internus
Obturator membrane
Greater trochanter of femur
Lateral rotation and abduction
Nerve to obturator internus
Superior gemellus
Ischial spine
Greater trochanter of femur
Lateral rotation and abduction
Nerve to obturator internus
Inferior gemellus
Ischial tuberosity
Greater trochanter of femur
Lateral rotation and abduction
Nerve to quadratus femoris
Quadratus Femoris
Ischial tuberosity
Quadrate tubercle on intertrochanteric crest
Lateral rotation
Nerve to quadratus femoris
Muscles of the Thigh
Anterior compartment
Muscle
Origin
Insertion
Action
Innervation
Iliopsoas
Lumbar vertebrae, iliac fossa
Lesser trochanter
Flexes thigh
Femoral
Pectineus
Pubis
Posterior aspect of femur, inferior to lesser trochanter
Adduction and flexion
Femoral
Sartorius
ASIS
Superior medial surface of tibia
Flex, abduct and laterally rotates
Femoral
Vastus lateralis (quadriceps femoris)
Greater trochanter
Patella - quadriceps tendon
Extends knee joint
Femoral
Vastus medialis (quadriceps femoris)
Intertrochanteric line
Patella - quadriceps tendon
Extends knee joint
Femoral
Vastus intermedius (quadriceps femoris)
Anterior and lateral surfaces of femoral shaft
Patella - quadriceps tendon
Extend knee joint
Femoral
Rectus femoris (quadriceps femoris)
Anterior inferior iliac spine
Patella - quadriceps tendon
Extend knee joint, flexes hip
Femoral
Medial compartment
Muscle
Origin
Insertion
Action
Innervation
Adductor magnus
Adductor part - Inferior public ramus
Hamstring part - ischial tuberosity
Adductor part - Linear aspera Hamstring part - adductor tubercle
Adductor - adductor and flex
Hamstring - adduct and extend
Obturator and sciatic nerve
Adductor longus
Pubis
Broad attachment along linear aspera
Adduction
Obturator
Adductor brevis
Pubis
Linear aspera
Adduction
Obturator
Obturator externus
Obturator membrane
Posterior aspect of greater trochanter
Adduction and lateral rotation
Obturator
Gracilis
Inferior pubic ramus
Medial surface of tibial shaft
Adduction
Flexion of knee
Obturator
Posterior Compartment - Hamstrings
Muscle
Origin
Insertion
Action
Innervation
Biceps femoris
Long head - ischial tuberosity
Short head - linear aspera
Head of fibula
Flexes knee, extends thigh at hip lateral rotation
sciatic
Semimembranosus
Ischial tuberosity
Medial tibial condyle
Flexes knee, extends thigh, medial rotation
Sciatic
Semitendinosus
Ischial tuberosity
Medial surface of tibia
Flex knee, extend thigh, medial rotation
sciatic
Muscles of the Leg
Anterior compartment
Muscle
Origin
Insertion
Action
Innervation
Tibialis anterior
Lateral surface of tibia
Medial cuneiform and base of MT1
Dorsiflexion and inversion
Deep fibular nerve
Extensor digitorum longus
Lateral condyle of tibia and medial surface of fibula
Extensor expansion
Dorsiflexion and extension of lateral four toes
Deep fibular nerve
Extensor hallucis longus
Medial surface of fibular shaft
Base of distal phalanx of great toe
Dorsiflexion and extension of great toe
Deep fibular nerve
Fibularis tertius
Medial surface of fibula
Dorsal surface of foot, attaches to MT5
Dorsiflexion and eversion of foot
Deep fibular nerve
Lateral compartment
Muscle
Origin
Insertion
Action
Innervation
Fibularis longus
Superior and lateral surface of fibula, lateral tibial condyle
Under foot, medial cuneiform and base of MT1
Eversion and plantarflexion
Superficial fibular nerve
Fibularis brevis
Inferolateral surface of fibular shaft
Passes over calcaneus and cuboidal bones, tubercle of MT5
Eversion
Superficial fibular nerve
Posterior compartment
Superficial layer
Muscle
Origin
Insertion
Action
Innervation
Gastrocnemius
Medial and lateral epicondyle of femur
Calcaneal tendon
Plantarflexion and knee flexion
Tibial nerve
Plantaris
Lateral supracondylar line of femur
Calcaneal tendon
Plantarflexion
Tibial nerve
Soleus
Soleal line
Calcaneal tendon
Plantarflexion and knee flexion
Tibial nerve
Deep layer
Muscle
Origin
Insertion
Action
Innervation
Popliteus
Lateral condyle of femur
Proximal tibia above soleal line
Lateral rotation
Tibial nerve
Flexor digitorum longus
Posterior surface of tibia
Plantar surface of lateral four digits
Flexion of lateral four toes
Tibial nerve
Flexor hallucis longus
Posterior surface of fibula
Plantar surface of phalanx of great toe
Flexion of great toe
Tibial nerve
Tibialis posterior
Posterior surface of tibia and fibula
Plantar surfaces of medial tarsal bones
Inversion and plantarflexion of foot
Tibial neve
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the superficial gluteal muscles, including the Gluteus Maximus, Medius, Minimus, and the Tensor Fascia Latae. It details their origins, insertions, actions, and innervations. Test your knowledge on these important muscles and their functions in hip movement.
