lower extremity

uestion: What movements can occur at the hip joint?
Answer: The hip can perform flexion, extension, abduction, adduction, internal rotation, external rotation, and circumduction.

Question: What movements can occur at the knee joint?
Answer: The knee mainly performs flexion and extension.

Question: What movements can occur at the ankle joint?
Answer: The ankle can perform dorsiflexion, plantarflexion, inversion, and eversion.

Question: What does it mean that muscles act along their lines of action?
Answer: Muscles pull in the direction that their fibers run.

Question: What does the direction of muscle fibers tell you?
Answer: The direction of the fibers tells you the direction the muscle will pull.

Question: Where do muscles that move the thigh usually originate?
Answer: They usually originate on the pelvic girdle.

Question: Where do muscles that move the thigh usually insert?
Answer: They usually insert on the femur.

Question: Where are the gluteal muscles located?
Answer: The gluteal muscles are located on the back of the hip.

Question: What are the main outer gluteal muscles?
Answer: The main outer gluteal muscles are gluteus maximus, gluteus medius, and gluteus minimus.

Question: What movements do the gluteal muscles mostly influence?
Answer: Depending on the muscle, they mostly influence hip extension and hip abduction.

Question: What does the gluteus maximus mainly do?
Answer: The gluteus maximus mainly extends the hip.

Question: What do the gluteus medius and gluteus minimus mainly do?
Answer: The gluteus medius and gluteus minimus mainly abduct the hip.

Question: What should I do with the question asking me to use pictures to place the gluteal muscles?
Answer: Visual model/picture-based question noted and ignored.

Question: How many muscles are in the deep gluteal hip stabilizer group?
Answer: There are 6 muscles in the deep gluteal hip stabilizer group.

Question: What is one important muscle in the deep gluteal hip stabilizer group?
Answer: One important muscle in this group is the piriformis.

Question: What are the 6 deep gluteal lateral rotator muscles?
Answer: The 6 muscles are piriformis, superior gemellus, inferior gemellus, obturator internus, obturator externus, and quadratus femoris.

Question: What is the main action of the deep gluteal hip stabilizer muscles?
Answer: They mainly perform lateral rotation at the hip joint.

Question: Where are the medial thigh muscles located?
Answer: The medial thigh muscles are located near the groin.

Question: What is the main action of the medial thigh muscles?
Answer: They primarily adduct the thigh.

Question: What are examples of medial thigh muscles?
Answer: Examples include adductor longus and adductor magnus.

Question: What muscles are usually injured during a groin pull or strain?
Answer: The medial thigh adductor muscles are usually injured.

Question: What should I do with the question asking me to use pictures to place the medial thigh muscles?
Answer: Visual model/picture-based question noted and ignored.

Question: What are the main hip flexor muscles?
Answer: The main hip flexors are the iliacus and psoas major.

Question: Where are the iliacus and psoas major primarily found?
Answer: They are primarily found in the abdomen behind the digestive tract.

Question: How do the iliacus and psoas major cross the hip joint?
Answer: They cross the hip joint anteriorly.

Question: Where do the iliacus and psoas major insert?
Answer: They insert on the femur.

Question: What muscle is formed when the iliacus and psoas major fuse together?
Answer: They form the iliopsoas.

Question: Where are muscles that move the leg at the knee mostly found?
Answer: They are found mostly on the anterior or posterior side of the thigh.

Question: What muscle group is found in the anterior thigh?
Answer: The quadriceps group is found in the anterior thigh.

Question: What is the main action of the quadriceps group?
Answer: The quadriceps group extends the knee.

Question: Where do most quadriceps muscles originate?
Answer: Most quadriceps muscles originate on the femur.

Question: Where do the quadriceps insert?
Answer: They insert on the tibia through the patellar ligament.

Question: What are the 4 quadriceps muscles?
Answer: The 4 quadriceps muscles are rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.

Question: What should I do with the question asking me to refer to lecture pictures for quadriceps locations?
Answer: Visual model/picture-based question noted and ignored.

Question: What muscle group is mostly found in the posterior thigh?
Answer: The hamstring group is mostly found in the posterior thigh.

Question: What are the main actions of the hamstrings?
Answer: The hamstrings mainly flex the knee and extend the hip.

Question: Where do most hamstrings originate?
Answer: Most hamstrings originate on the pelvic region.

Question: Where do the hamstrings insert?
Answer: They insert on either the tibia or fibula.

Question: What are the main hamstring muscles?
Answer: The main hamstring muscles are biceps femoris, semitendinosus, and semimembranosus.

Question: Why are hamstring injuries common?
Answer: Hamstring injuries are common because the hamstrings tend to be one of the tightest muscle groups in the body.

Question: What should I do with the question asking me to use lecture pictures for hamstring locations?
Answer: Visual model/picture-based question noted and ignored.

Question: What are weaker synergists that assist with knee flexion?
Answer: The sartorius and popliteus muscles assist with knee flexion.

Question: Where can muscles that move the foot or toes originate?
Answer: They can originate on the distal femur, tibia, or fibula.

Question: Where can muscles that move the foot or toes insert?
Answer: They can insert on the tarsal bones, metatarsals, or phalanges.

Question: Where are the anterior leg muscles located?
Answer: The anterior leg muscles are located next to the shin bone.

Question: What do the anterior leg muscles do?
Answer: They are responsible for ankle dorsiflexion or extension of the toes.

Question: Where are the posterior leg muscles located?
Answer: The posterior leg muscles are located in the calf region.

Question: What do the posterior leg muscles do?
Answer: They are largely responsible for ankle plantarflexion or flexion of the toes.

Question: What should I do with the question asking me to see the placement and names of the leg muscles in lecture slides?
Answer: Visual model/slide-based question noted and ignored.

Question: What muscles commonly perform inversion of the foot?
Answer: Tibialis anterior and tibialis posterior commonly perform inversion.

Question: What muscles commonly perform eversion of the foot?
Answer: Fibularis longus, fibularis brevis, and fibularis tertius commonly perform eversion.

Question: What is the anatomical name of the Achilles tendon?
Answer: The anatomical name is the calcaneal tendon.

Question: Where does the calcaneal tendon insert?
Answer: It inserts on the calcaneus bone.

Question: What is the calcaneus?
Answer: The calcaneus is the heel bone.

Question: How many tarsal bones are there?
Answer: There are 7 tarsal bones.

Question: Is the calcaneus a tarsal bone?
Answer: Yes. The calcaneus is one of the 7 tarsal bones.

Question: What is the femoral nerve?
Answer: The femoral nerve is a vital nerve that originates from the lumbar plexus.

Question: What muscles does the femoral nerve supply?
Answer: The femoral nerve supplies the anterior thigh muscles, especially the quadriceps group.

Question: What reflex test checks the femoral nerve?
Answer: The patellar tendon reflex test checks the integrity of the femoral nerve.

Question: Why does the leg kick forward during the patellar tendon reflex test?
Answer: The quadriceps group is stimulated to contract by a motor signal from the femoral nerve, causing the leg to kick forward.

Question: What is the sciatic nerve?
Answer: The sciatic nerve is the most important nerve of the lower limb.

Question: Where does the sciatic nerve originate?
Answer: It originates from the sacral plexus.

Question: What areas does the sciatic nerve and its branches supply?
Answer: It supplies the posterior thigh, all compartments of the leg, and the entire foot.

Question: What can happen if the sciatic nerve is compressed or damaged?
Answer: It can cause muscle weakness and sensory issues in the ipsilateral leg and foot.

Question: What does ipsilateral mean?
Answer: Ipsilateral means same-sided.