Lower Limb Anatomy final

When the following muscle is paralyzed, patients cannot stand up from sitting position without support (climb on themselves):

• Adductor magnus

• Gluteus maximus

• Quadriceps femoris

• Gluteus medius

One of the following muscles does not produce adduction of the thigh at the hip joint:

• Gluteus medius

• Pectineus

• Gracilis

• Adductor brevis

Safest site for intramuscular injection in the gluteal region is:

• Upper medial

• Upper lateral

• Lower medial

• Lower lateral

The action of the obturator externus muscle is:

• Extension of the hip joint

• Lateral rotation of the hip joint

• Medial rotation of the hip joint

• Abduction of the hip joint

Which one of the following muscles is attached to the iliotibial tract:

• Superficial part of gluteus maximus

• Gluteus medius

• Deep part of gluteus maximus

• Adductor magnus

Concerning the biceps femoris muscle, all are true except:

• It is a flexor of the leg at the knee joint

• It is supplied by the sciatic nerve

• It is inserted into the styloid process

• It is a medial rotator of the leg at the knee joint

The muscle that flexes the trunk when raising from the recumbent position is:

• Gluteus maximus

• Semitendinosus

• Ischial part of adductor magnus

• Iliopsoas

Regarding the semimembranosus muscle:

• It is inserted into a groove on the back of the lateral condyle of the tibia

• It rotates the leg medially

• It flexes the hip joint

• It extends the knee joint

Concerning the patella, all of the following are true except:

• It is the largest sesamoid bone in the body and develops in the quadriceps tendon

• Its lateral articular facet is larger than the medial one

• Its base receives the ligamentum patella

• The most important factor in its stability (from side-to-side mobility) is the lowest fleshy fibers of vastus medialis, which lie nearly horizontal

One of the following statements regarding hamstring muscles is false:

• Semitendinosus arises from the lower medial part of the upper area of the ischial tuberosity

• All hamstrings have a common action of extending the hip and flexing the knee

• Semitendinosus produces medial rotation of the leg at the knee joint

• Semimembranosus arises from the lateral part of the lower area of the ischial tuberosity