Re: Lower Limb T/F

Comments:
: : Hi Amanda! : : Could you give us feedback on some of these answers. : : : 1. The femoral nerve provides only motor innervation. : : False. The femoral motor does also provide sensory innervation to the skin of the anterior thigh and the anteromedial aspect of the leg. The afferent innervation of the leg is provided by the saphenous nerve (a branch of the femoral nerve that travels in the adductor canal). AWESOME! : : 2. The great saphenous vein begins at the femoral vein and continues until anastomosing with the dorsal venous arch. : : False. the GSV begins at the arch and continues to the femoral vein. Agreed, but more specifically the GSV begins at the dorsal venous arch of the foot (there is another arch elsewhere!) : : : : 3. Cribriform fascia is relatively weak fascia “filling” the natural opening in the fascia lata known as the saphenous opening. : : True. : : 4. Pectineus muscle makes up the lateral portion of the femoral triangle floor. : : False. Pectineus makes up the medial portion of the femoral triangle. Rather the iliopsoas muscle makes the lateral portion of the femoral triangle. EXCELLENT : : 5. Articularis genu pulls the suprapatellar bursa superiorly during extension of the knee. : : True. Agreed. Look for this in the lab. It also appears in some cross-sections. : : 6. The 3 compartments of the femoral sheath each contain one structure passing through the femoral triangle. : : True. Lateral (Femoral Artery), Intermediate (Femoral Vein) Medial (Lymphatics). Nerve is not included under the femoral sheath. GREAT. The femoral nerve makes its way deep the the inguinal ligament along with the iliopsoas muscle. : : : : 7. The descending and transverse branches of the lateral femoral circumflex artery contribute to the genicular anastomosis. : : False! Descending branch of the lateral femoral does contribute to the genicular anastomosis; however the lateral transverse branch does anastomosis with the medial circumflex femoral artery. AGREED. The lateral and ascending branches of the lateral femoral circumflex a both participate in the cruciate anastomosis. : : 8. The patellar tendon reflex tests the function of the femoral nerve and the spinal cord segments L2, L3 and L4. : : True. Dissector page 157 in the 14th edition - NICE! : : 9. Obturator externus muscle is a lateral rotator of the thigh. : : True. The lateral rotators are muscles in the hip/gluteal region of the body and their main job is basically what it sounds like: to rotate the hip joint laterally. To a lesser extent, they also help with other motions of the hip, such as extension and adduction.The lateral rotators are: the superior gemellus, inferior gemellus, obturator externus, obturator internus, quadratus femoris, and the piriformis. These muscles all originate on the pelvic area and insert onto the greater trochanter of the femur. GREAT! : : : : 10. Biceps femoris muscle is considered a hamstring muscle. : : True. The hamstring muscles are Biceps femoris, semitendinosus, semimembranosus, and the hamstring part of the adductor magnus. : This is a false statement. There are three criteria the muscles must meet to be considered a hamstring. The short head of the biceps femoris does not meet the criteria. The adductor magnus has a hamstring portion, but it only meets 2 of the 3 criteria, so it is not truly a hamstring muscle. : : : : 11. Gluteus medius and minimus muscles are medial and lateral rotators of the thigh. : : False. Gluteus medius and minimus muscles do not do lateral rotators. The tensor fasciae latae, gluteus medius, and gluteus minimus do medial rotations. : : 12. The posterior femoral cutaneous nerve is a branch of the sciatic nerve. : : False. Posterior femoral cutaneous is not a branch of the sciatic, rather it comes from 2nd secrol. Good (secrol?).

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