Anatomy of the Foot: Overview

00:01 In this lecture, we'll continue looking at the lower limb and focus on the foot.

00:07 So let's introduce ourselves to the foot and various surface features.

00:11 So here we can see the right foot, and we can see its superior surface is known as the dorsum of the foot.

00:18 And the inferior surface is known as the sole of the foot.

00:22 So just remember that these two terms, the superior surface is known as the dorsum of the foot, and the inferior surface is known as the sole.

00:31 So if we look at the dorsum of the foot, its superior surface, we can see we have a series of these extrinsic muscles.

00:38 What we mean by this is these are muscles that actually work on the foot and the ankle joint, but actually originate from the leg, and they have long tendons that pass into the foot.

00:49 We can then see we have intrinsic muscles of the foot.

00:52 Now these don't reside in the leg in any way, they stay in the foot, and they work on the tarsals, metatarsal, and the toes.

01:00 The sole of the foot, here we have this inferior surface, we then also have a series of extrinsic muscles.

01:07 And these again originate in the leg and their long tendons pass into the sole of the foot.

01:12 And then we have a series of intrinsic muscles of the sole.

01:16 And here we have four layers.

01:18 There's lots of muscles here, which are really important in helping the foot to have a stable grip on the surface, we're walking, running, etc.

01:26 So a series of extrinsic muscles that originate elsewhere pass into the foot and a series of intrinsic muscles that are located within the foot itself.