Arteries of the Lower Limb: Femoral Artery

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Questions and Answers

Which artery becomes the popliteal artery as it enters the posterior compartment of the thigh?

  • Obturator artery
  • Dorsalis pedis artery
  • Posterior tibial artery
  • Femoral artery (correct)

What procedure involves navigating a long, thin tube through the femoral artery for visualizing coronary vessels?

  • Vascular bypass surgery
  • Embolization therapy
  • Thrombolysis
  • Coronary angiography (correct)

Which artery arises from the internal iliac artery and descends via the obturator canal to enter the medial thigh?

  • Obturator artery (correct)
  • Inferior gluteal artery
  • Femoral artery
  • Superior gluteal artery

Which artery supplies the pectineus, obturator externus, adductor muscles, and gracilis?

<p>Obturator artery (A)</p> Signup and view all the answers

Which artery supplies some of the deep gluteal muscles in the gluteal region?

<p>Inferior gluteal artery (C)</p> Signup and view all the answers

Which vessel descends down the posterior thigh and gives rise to genicular branches that supply the knee joint?

<p>Popliteal artery (D)</p> Signup and view all the answers

Which nerve is particularly susceptible to compression from an aneurysm of the popliteal artery?

<p>Tibial nerve (D)</p> Signup and view all the answers

Which artery begins as the anterior tibial artery enters the foot and passes over the dorsal aspect of the tarsal bones?

<p>Dorsalis pedis artery (C)</p> Signup and view all the answers

Which major feature is associated with tibial nerve compression from an aneurysm of the popliteal artery?

<p>Weakened or absent plantarflexion and paraesthesia of the foot and posterolateral leg (C)</p> Signup and view all the answers

Which artery is a continuation of the external iliac artery?

<p>Femoral artery (B)</p> Signup and view all the answers

Which artery wraps round the posterior side of the femur?

<p>Medial femoral circumflex artery (B)</p> Signup and view all the answers

Which artery can easily be damaged in a fracture of the femoral neck, leading to avascular necrosis of the femur head?

<p>Medial femoral circumflex artery (A)</p> Signup and view all the answers

Which artery supplies some of the muscles on the lateral aspect of the thigh?

<p>Lateral femoral circumflex artery (D)</p> Signup and view all the answers

Which branch of the femoral artery contributes to the supply of the muscles in the medial and posterior thigh?

<p>Profunda femoris artery (A)</p> Signup and view all the answers

In which region does the profunda femoris artery arise from the femoral artery?

<p>Femoral triangle (A)</p> Signup and view all the answers

Which tunnel does the femoral artery pass through during its descent down the anterior surface of the thigh?

<p>Adductor canal (D)</p> Signup and view all the answers

What is the main artery of the lower limb?

<p>Femoral artery (B)</p> Signup and view all the answers

From where does the femoral artery originate?

<p>External iliac artery (B)</p> Signup and view all the answers

What happens to the external iliac artery to become the femoral artery?

<p>It crosses over the inguinal ligament (D)</p> Signup and view all the answers

Flashcards

Popliteal artery

The femoral artery becomes the popliteal artery as it enters the posterior compartment of the thigh.

Coronary Angiography

Coronary angiography is a procedure that uses a long, thin tube inserted through the femoral artery to visualize the coronary vessels.

Obturator Artery

The obturator artery arises from the internal iliac artery and enters the medial thigh through the obturator canal.

Obturator Artery: Supplies

The obturator artery supplies blood to the pectineus, obturator externus, adductor muscles, and gracilis.

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Inferior Gluteal Artery

The inferior gluteal artery supplies blood to some of the deep gluteal muscles in the gluteal region.

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Popliteal Artery: Branches

The popliteal artery descends down the posterior thigh and branches to supply the knee joint.

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Tibial Nerve Compression

The tibial nerve can be compressed by an aneurysm of the popliteal artery.

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Dorsalis Pedis Artery

The dorsalis pedis artery is a continuation of the anterior tibial artery as it enters the foot and passes over the dorsal aspect of the tarsal bones.

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Tibial Nerve Compression: Signs

Weakened or absent plantarflexion, paraesthesia of the foot and posterolateral leg are common signs of tibial nerve compression from a popliteal artery aneurysm.

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Femoral Artery: Origin

The femoral artery is the continuation of the external iliac artery.

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Medial Femoral Circumflex Artery

The medial femoral circumflex artery wraps around the posterior side of the femur.

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Medial Femoral Circumflex Artery: Risk

The medial femoral circumflex artery is vulnerable to damage in a fracture of the femoral neck, potentially leading to avascular necrosis of the femur head.

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Lateral Femoral Circumflex Artery

The lateral femoral circumflex artery supplies blood to some of the muscles on the lateral aspect of the thigh.

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Profunda Femoris Artery

The profunda femoris artery, a branch of the femoral artery, supplies blood to muscles in the medial and posterior thigh.

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Profunda Femoris Artery: Origin

The profunda femoris artery arises from the femoral artery within the femoral triangle.

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Femoral Artery: Path

The femoral artery passes through the adductor canal as it descends down the anterior surface of the thigh.

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Femoral Artery

The femoral artery is the main artery of the lower limb.

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Femoral Artery: Origin

The femoral artery originates from the external iliac artery.

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Femoral Artery: Transformation

The external iliac artery becomes the femoral artery as it crosses over the inguinal ligament.

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Study Notes

Arteries of the Lower Limb

  • The femoral artery becomes the popliteal artery as it enters the posterior compartment of the thigh.

Femoral Artery

  • The femoral artery is the main artery of the lower limb.
  • It originates from the external iliac artery.
  • It becomes the femoral artery as the external iliac artery passes under the inguinal ligament.

Popliteal Artery

  • The popliteal artery gives rise to genicular branches that supply the knee joint.
  • It descends down the posterior thigh.

Profunda Femoris Artery

  • It arises from the femoral artery in the upper thigh region.
  • It contributes to the supply of muscles in the medial and posterior thigh.

Obturator Artery

  • It arises from the internal iliac artery and descends via the obturator canal to enter the medial thigh.
  • It supplies the pectineus, obturator externus, adductor muscles, and gracilis.

Gluteal Region

  • The superior gluteal artery supplies some of the deep gluteal muscles.

Tibial Artery

  • The anterior tibial artery becomes the dorsalis pedis artery as it enters the foot and passes over the dorsal aspect of the tarsal bones.

Nerve Compression

  • The tibial nerve is susceptible to compression from an aneurysm of the popliteal artery.
  • Tibial nerve compression from an aneurysm of the popliteal artery can result in tarsal tunnel syndrome.

Femoral Triangle

  • The femoral artery passes through the femoral triangle (also known as Scarpa's triangle) during its descent down the anterior surface of the thigh.

Medical Imaging

  • Angiography involves navigating a long, thin tube through the femoral artery for visualizing coronary vessels.

Muscular Supply

  • The lateral circumflex femoral artery supplies some of the muscles on the lateral aspect of the thigh.
  • The medial circumflex femoral artery wraps round the posterior side of the femur and can be easily damaged in a fracture of the femoral neck, leading to avascular necrosis of the femur head.

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