Anatomia do Pé: Ossos do Tarso, Metatarsos e Falanges - Sistema Esquelético/Ósseo - VideoAula 053

Summary

In this video lesson, Rogério teaches about the bones of the foot, focusing on the tarsal bones, metatarsals, and phalanges. He explains the anatomy of the foot from different perspectives, including dorsal, plantar, and medial views. Key bones like the calcaneus (heel), talus, cuboid, navicular, and the cuneiforms are introduced with their articulations and relationships with the metatarsals. The lesson also covers the structure of the toes, comparing it to the hand's phalanges. Rogério simplifies the concepts with clear explanations, making it easier to remember the bones of the foot and their functions.

Takeaways

• 😀 The foot consists of three main regions: the tarsus (ankle), metatarsus (midfoot), and phalanges (toes).
• 😀 The calcaneus is the largest tarsal bone and forms the heel of the foot.
• 😀 The talus is the second largest tarsal bone, located above the calcaneus and articulates with the tibia and fibula.
• 😀 The cuboid bone articulates with the calcaneus and is positioned laterally in the foot.
• 😀 The navicular bone sits in front of the talus and articulates with the cuneiform bones.
• 😀 The cuneiform bones (medial, intermediate, and lateral) are located in front of the navicular and articulate with the metatarsals.
• 😀 The medial cuneiform connects to the first metatarsal, the intermediate cuneiform to the second metatarsal, and the lateral cuneiform to the third metatarsal.
• 😀 The metatarsals are the five long bones that connect the tarsal region to the toes.
• 😀 The phalanges of the toes are similar to the fingers, with the hallux (big toe) having two phalanges and the other toes having three.
• 😀 To remember the tarsal bones, think of the calcaneus as the base, the cuboid laterally, the navicular in front, and the cuneiforms linked to the metatarsals.

Q & A

What are the main bones discussed in the script?

The main bones discussed in the script are the bones of the tarsus, metatarsals, and phalanges of the foot.

How is the region of the foot divided according to the bones?

The foot is divided into three main regions: the tarsus (ankle region), the metatarsals (midfoot region), and the phalanges (toes region).

What is the largest bone of the tarsus, and what is its function?

The largest bone of the tarsus is the calcaneus, which forms the heel and provides support for standing and walking.

Where is the talus located in relation to the calcaneus?

The talus is positioned above the calcaneus and articulates with it, playing a key role in the ankle joint.

What bones articulate with the calcaneus?

The calcaneus articulates with the talus, the cuboid, and indirectly with the metatarsals, depending on the region of the foot.

What is the cuboid bone, and where is it located?

The cuboid is a bone that articulates with the calcaneus laterally and plays a role in the structure of the midfoot.

How are the cuneiform bones classified and what is their function?

The cuneiform bones are classified into three types: medial, intermediate, and lateral. They articulate with the first, second, and third metatarsals, respectively, and help provide stability to the foot.

What is the role of the navicular bone in the foot?

The navicular bone is located in front of the talus and connects it with the cuneiform bones, helping to form the arch of the foot.

How many phalanges are found in the toes, and how are they structured?

There are a total of 14 phalanges in the toes: two in the big toe (halls) and three in each of the other toes, consisting of a proximal, middle, and distal phalanx.

What is the difference between the medial, intermediate, and lateral cuneiform bones?

The medial cuneiform is the innermost bone, articulating with the first metatarsal; the intermediate cuneiform articulates with the second metatarsal; and the lateral cuneiform articulates with the third metatarsal.