and it also helps to maintain the longitudinal
arch. Okay. So to finish, I just want to talk
about the arches of the foot. We have both
a medial and a lateral arch of the foot, and
this creates this arch where we have this
space run along the sole of the foot for the
muscles and the neurovascular structures.
This allows a shock absorber. It allows a
degree of spring bounds important when we’re
moving. So the arches of the foot are important
in distributing the weight of the foot and
acting as a spring board for movements such
as walking, running, and jumping. We have a
longitudinal arch of the foot. We have medial
and lateral parts. The medial arch is higher
and much more significant. Here, we have the
medial arch. We can see it’s formed by the
three metatarsals, we can see here.
It’s formed by the three cuneiforms, we can
see here. It’s also formed by the navicular
and the talus and the calcaneus. So we have this
arch, this medial arch here. It is supported
by the tendinous attachments of the anterior
and posterior tibialis muscles. So these tendinous
attachments from these muscles help to support
this arch, and also the fibularis longus tendon.
The lateral arch is flatter and it’s against
the floor when standing. It is formed from
the calcaneus, the cuboid, and the lateral
two metatarsals. So it’s not as high as the
medial arch. The integrity of the bony arches
are maintained by the ligaments of the foot.
So here, we can see the long plantar ligaments.
We can see the plantar calcaneonavicular ligaments
again, and these are holding the arches together,
supporting them, allowing that spring board
during movement. So the integrity of the bony
arches are maintained by the ligaments of the
foot. Also by the intrinsic muscles and the
long tendons of the extrinsic muscles that
also work on the foot. So in this lecture,
we’ve looked at the hip joints, we’ve
looked at the knee joints, and we’ve looked
at the talofibular joints. And we’ve looked
at the specific bones that articulate to form
these joints. We then looked at the ankle
joints, the joints of the foot, and the
arches of the foot.