Answer
**Continuation of the External Iliac Artery as the Femoral Artery:** The external iliac artery is a major artery in the lower limb that arises from the common iliac artery. As it passes beneath the inguinal ligament (a band of connective tissue near the groin), it continues its course as the femoral artery. The femoral artery is a large and important artery that supplies blood to the thigh and lower leg.
**Deep Femoral Artery (Profunda Femoris):** The deep femoral artery is a branch of the femoral artery that provides blood supply to the muscles of the thigh. It gives off multiple branches that help in nourishing various muscles in the thigh region.
**Circumflex Femoral Arteries:** There are two circumflex femoral arteries: the superficial circumflex iliac artery and the deep circumflex iliac artery. These arteries arise from the femoral artery and supply blood to the muscles and skin around the hip joint and the thigh.
**Popliteal Artery:** The popliteal artery is a continuation of the femoral artery as it passes through the adductor hiatus (an opening in the adductor magnus muscle) and enters the popliteal fossa at the back of the knee. The popliteal artery provides blood supply to the muscles and structures at the back of the thigh and knee.
**Anterior and Posterior Tibial Arteries:** These arteries are major branches of the popliteal artery and provide blood supply to the lower leg. The anterior tibial artery travels along the front of the leg and supplies the muscles and structures on the anterior side of the leg and foot. The posterior tibial artery travels along the back of the leg and supplies the posterior muscles of the leg and the plantar region of the foot.
These arteries collectively ensure proper blood supply to the muscles, bones, and other structures of the lower limb, allowing for efficient movement and function.
Work Step by Step
**Continuation of the External Iliac Artery as the Femoral Artery:** The external iliac artery is a major artery in the lower limb that arises from the common iliac artery. As it passes beneath the inguinal ligament (a band of connective tissue near the groin), it continues its course as the femoral artery. The femoral artery is a large and important artery that supplies blood to the thigh and lower leg.
**Deep Femoral Artery (Profunda Femoris):** The deep femoral artery is a branch of the femoral artery that provides blood supply to the muscles of the thigh. It gives off multiple branches that help in nourishing various muscles in the thigh region.
**Circumflex Femoral Arteries:** There are two circumflex femoral arteries: the superficial circumflex iliac artery and the deep circumflex iliac artery. These arteries arise from the femoral artery and supply blood to the muscles and skin around the hip joint and the thigh.
**Popliteal Artery:** The popliteal artery is a continuation of the femoral artery as it passes through the adductor hiatus (an opening in the adductor magnus muscle) and enters the popliteal fossa at the back of the knee. The popliteal artery provides blood supply to the muscles and structures at the back of the thigh and knee.
**Anterior and Posterior Tibial Arteries:** These arteries are major branches of the popliteal artery and provide blood supply to the lower leg. The anterior tibial artery travels along the front of the leg and supplies the muscles and structures on the anterior side of the leg and foot. The posterior tibial artery travels along the back of the leg and supplies the posterior muscles of the leg and the plantar region of the foot.
These arteries collectively ensure proper blood supply to the muscles, bones, and other structures of the lower limb, allowing for efficient movement and function.
