Anatomy of Ankle and Lower Leg Quiz

In the ankle, the largest tarsal bone is the ___________________.

The crural interosseous membrane extends between the __________________________.

When seated, the body weight is borne by the ___________________________.

Compared with that of females, the male coccyx ______________________.

As it reaches the ankle, the posterior tibial artery divides to form the medial and lateral plantar arteries, which supply blood to the plantar surface of the foot.

Anatomy of the Ankle and Lower Leg

The largest tarsal bone in the ankle is the calcaneus.
It serves as the heel bone, providing support and stability while walking.

Crural Interosseous Membrane

The crural interosseous membrane connects the tibia and fibula.
This membrane plays a crucial role in providing stability to the leg and supports muscle attachment.

Body Weight Bearing While Seated

When seated, body weight is primarily supported by the ischial tuberosities.
These are the bony prominences of the pelvis that provide support when sitting.

Male vs. Female Coccyx

The male coccyx points anteriorly, contrasting with the female coccyx, which has a more posterior orientation.
Males typically have a larger and longer coccyx, and it also tends to fuse at an earlier age.

Posterior Tibial Artery Function

As it approaches the ankle, the posterior tibial artery bifurcates into the medial and lateral plantar arteries.
These arteries are responsible for supplying blood to the plantar surface of the foot, playing a vital role in foot health and function.

Test your knowledge on the anatomy of the ankle and lower leg, including important bones and structures such as the calcaneus, crural interosseous membrane, and body weight support while seated. Discover the differences in the male and female coccyx and the functions of the posterior tibial artery. Perfect for anatomy students and enthusiasts!