Podcast
Questions and Answers
What is the primary action of the quadriceps muscle group?
What is the primary action of the quadriceps muscle group?
- Flex the knee
- Laterally rotate the hip
- Adduct the femur
- Extend the knee (correct)
Which muscle is responsible for dorsiflexion and inversion of the foot?
Which muscle is responsible for dorsiflexion and inversion of the foot?
- Peroneals
- Gastrocnemius
- Soleus
- Tibialis Anterior (correct)
Where does the gluteus maximus muscle attach?
Where does the gluteus maximus muscle attach?
- L1-L5 vertebrae and humerus
- Sacrum, ilium & femur (correct)
- Iliac crest, femur & calcaneus
- Pubic bone, tibia & fibula
What action is performed by the piriformis muscle?
What action is performed by the piriformis muscle?
The iliopsoas muscle is primarily responsible for which movement?
The iliopsoas muscle is primarily responsible for which movement?
Which muscle group assists with flexion at the knee and aids in hip extension?
Which muscle group assists with flexion at the knee and aids in hip extension?
What is the role of the iliotibial band (ITB)?
What is the role of the iliotibial band (ITB)?
What is one of the actions of the gluteus medius?
What is one of the actions of the gluteus medius?
Which muscle is responsible for plantar flexion when the knee is flexed?
Which muscle is responsible for plantar flexion when the knee is flexed?
Which muscle primarily extends the trunk when both sides contract?
Which muscle primarily extends the trunk when both sides contract?
Flashcards
Adductors
Adductors
Muscle group that adducts the femur.
Hamstrings
Hamstrings
Muscles that flex the leg at the knee and assist hip extension.
Quadriceps
Quadriceps
Muscle group that extends the knee and flexes hip.
Sartorius
Sartorius
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Gastrocnemius
Gastrocnemius
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Tibialis Anterior
Tibialis Anterior
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Latissimus Dorsi
Latissimus Dorsi
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Gluteus Maximus
Gluteus Maximus
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Iliopsoas
Iliopsoas
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Erector Spinae
Erector Spinae
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Study Notes
Muscles of the Body
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Need to Know: Adductors: Adduct femur; Hamstrings: Flex leg at knee, assist hip extension; Quadriceps: Extend knee, flex hip; Sartorius: Flexes knee & hip, laterally rotates femur; Iliotibial Band (ITB): Stabilises knee & hip; Gastrochnmius: Plantar flexion, knee extended; Soleus: Plantar flexion, knee flexed; Tibialis Anterior: Dorsiflexion & inversion; Peroneals: Eversion & plantar flexion
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Nice to Know: Pubic bone & ischium, medial edge of femur; Ischium & femur, tibia & fibula; Femur & AIIS, tibia
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Additional Information: Tailors muscle (Not a muscle, an important tendon); Main propelling force for running & walking, use in hill walking
Back and Pelvic Muscles
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Action: Latissimus Dorsi: Extends, adducts, and medially rotates humerus; Quadratus Lumborum: Extends & laterally flexes trunk; Erector Spinae: Extend trunk when both sides contract; Laterally flex trunk when one side contracts
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Attachments: Latissimus Dorsi: Iliac crest, T7-S5, humerus; Quadratus Lumborum: Iliac crest, 12th rib, L1-L4; Erector Spinae: Sacrum, all vertebrae, ribs, occipital bone
Buttocks and Leg Muscles
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Action: Gluteus Maximus: Extends & laterally rotates femur, also extends trunk especially lower back; Gluteus Medius: Abducts & medially rotates femur, also gluteus minimus same attachments & action; Tensor Fascia Latae: Flexes, abducts & medially rotates hip, hip flexor, also flexes trunk; Iliopsoas: Flexes hip
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Attachments: Gluteus Maximus: Sacrum, ilium & femur; Gluteus Medius: Ilium, greater trochanter; Tensor Fascia Latae: Ilium, greater trochanter; Iliopsoas: Iliac crest, ITB/ L1-L5
Deep Back Muscles
- Note: Widest muscle of the back, which moves the arm; Deep to erector Spinae; Iliocostalis, longissimus, & spinalis; Tight muscle may cause sciatica
- Additional Information: Also includes gluteus minimus showing same attachments and action as medius and Small but important muscles acting together, important for runners.
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