Bones of the Lower Limb Quiz

The seven bones that make up the ankle and back part of the foot.

The five long bones that form the middle part of the foot, connecting the tarsals to the toes.

The fourteen bones that make up the toes. Each toe has three phalanges except the big toe, which has two.

The largest and strongest bone in the human body, located in the thigh.

The socket in the hip bone where the femur articulates, forming the hip joint.

The largest sesamoid bone in the human body is the patella, also known as the kneecap.

The patella is located within the quadriceps tendon, which is the large tendon that connects the quadriceps muscles to the shin bone (tibia).

The patella acts as a lever arm, increasing the leverage of the quadriceps muscle during knee extension. This allows for stronger and more efficient knee straightening.

The anterior surface of the patella is rough and subcutaneous. This means it's the surface that faces forward and is covered by skin, making it easily palpable.

Being subcutaneous means the anterior surface of the patella is easily accessible for examination and palpation, which is important for diagnosing potential injuries or abnormalities in the knee joint.

The Quadriceps Femoris muscle group attaches to the patella (kneecap) via the patellar tendon, and then to the tibial tuberosity on the shinbone.

The Quadriceps Femoris is composed of four individual muscles: Rectus Femoris, Vastus Lateralis, Vastus Medialis, and Vastus Intermedius.

The Rectus Femoris muscle has a head that points upward and medially (toward the middle of the body).

The shaft of the Rectus Femoris muscle is smooth and convex (rounded outward) in the front.

The Quadriceps Femoris muscle group is responsible for extending the knee joint, and it also plays a role in hip flexion.

The front edge of the ulna, characterized by its sharp, subcutaneous nature.

Inner side of the ulna bone, running alongside the radius.

Outer side of the ulna bone, closest to the radius.

This border runs along the length of the ulna, forming a sharp edge for attachment of the interosseous membrane.

Located directly beneath the skin.

The upper end of the fibula is larger than the lower end. This is significant for providing attachment points for muscles and ligaments and contributing to ankle stability.

The medial malleolus, which is the bony prominence on the inner ankle, is directed downward and medially (towards the middle of the body).

The medial malleolus's downward and medial orientation helps to stabilize the ankle joint and prevent excessive inward movement or inversion of the foot.

The lateral malleolus is the bony prominence on the outer ankle and it's located at the lower end of the fibula.

The lateral malleolus acts as an important bony landmark for the ankle joint and contributes to its stability by helping to prevent excessive outward movement or eversion of the foot.

The head of the fibula articulates with the lateral condyle of the tibia, forming part of the knee joint.

The styloid process of the fibula serves as an attachment point for ligaments that help stabilize the ankle joint.

The neck of the fibula is located just below the head and above the shaft, connecting the two.

The fibula itself doesn't bear much weight compared to the tibia. It mainly acts as a stabilizer for the ankle joint and provides attachment points for muscles.

The fibula and tibia are the two bones of the lower leg, forming a strong and functional unit. They articulate at both ends and cooperate to support weight and allow movement.