Foot joints. Joints of the metatarsal bones and phalanges

Joint of the foot: Metatarsus and phalangesAnatomy, functions, innervation and blood supply of joints of metatarsal bones and the phalanges
~ 5 min

In addition to the ankle joint, which is discussed in a separate video, the joints of the foot include several more groups: the joints of the tarsal bones, the joints between the tarsal and metatarsal bones, and the joints of the phalanges.

Let’s learn about the last two groups.

Let’s start with the joints that connect the tarsal bones with the metatarsal bones.

The tarsometatarsal joints (articulationes tarsometatarseae). The combination of these joints is called the Lisfranc joint.

Tarsometatarsal joints (artt. tarsometatarsales)
Tarsometatarsal joints (artt. tarsometatarsales)
Tarsometatarsal joints (artt. tarsometatarsales)
Tarsometatarsal joints (artt. tarsometatarsales)
Tarsometatarsal joints (artt. tarsometatarsales)
Tarsometatarsal joints (artt. tarsometatarsales)

The bones forming the joint are medial cuneiform bone (os cuneiforme mediale), intermediate cuneiform bone(os cuneiforme intermedium), lateral cuneiform bone (os cuneiforme laterale), cuboid bone(os cuboideum) and the 1st-5th metatarsals (ossa metatarsalia I-V).

The articular surfaces involved in the formation of the joint are the distal articular surfaces of the cuneiform bones, the articular surface of the cuboid bone and the articular surfaces of the bases of the metatarsal bones.

In this case, three isolated joints are formed:

  • The joint between the medial cuneiform bone and the 1st metatarsal bone

  • The joint between the 2nd and the 3rd metatarsals and the intermediate and lateral cuneiform bones

  • The joint between the cuboid bone and the 4th and 5th metatarsals

    The joint capsule is attached along the edges of the articular surfaces.

    According to the classification, this joint is plane.

    Almost no motions take place in this joint.

    The ligamentous apparatus of the joint consists of several ligaments.

  • The dorsal tarsometatarsal ligaments (ligamenta tarsometatarsea dorsalia)

    Dorsal tarsometatarsal ligaments (ligg. tarsometatarsalia dorsalia)
    Dorsal tarsometatarsal ligaments (ligg. tarsometatarsalia dorsalia)
  • The plantar tarsometatarsal ligaments (ligamenta tarsometatarsea plantaria)

    Plantar tarsometatarsal ligaments (ligg. tarsometatarsalia plantaria)
    Plantar tarsometatarsal ligaments (ligg. tarsometatarsalia plantaria)
    Plantar tarsometatarsal ligaments (ligg. tarsometatarsalia plantaria)
    Plantar tarsometatarsal ligaments (ligg. tarsometatarsalia plantaria)
  • The interosseous cuneometatarsal ligaments (ligamenta cuneometatarsea interossea). The medial cuneometatarsal ligament, which connects the medial cuneometatarsal bone with the 2nd metatarsal is called the key of the Lisfranc joint.

    Interosseous cuneometatarsal ligaments (ligg. cuneometatarseae interossea)
    Interosseous cuneometatarsal ligaments (ligg. cuneometatarseae interossea)

    The intermetatarsal joints (articulationes intermetatarseae).

    The bones forming the joint are the 1st-5th metatarsals (ossa metatarsalia I-V).

    Intermetatarsal joints (artt. intermetatarsales)
    Intermetatarsal joints (artt. intermetatarsales)

    The articular surfaces involved in the formation of the joint are the surfaces of the metatarsals facing each other.

    The joint capsules are attached along the edges of the articular surfaces.

    The metatarsal interosseous ligaments (ligamenta metatarsea interossea) belong to the ligamentous apparatus of the joint.

    Metatarsal interosseous ligaments (ligamenta metatarsea interossea)
    Metatarsal interosseous ligaments (ligamenta metatarsea interossea)

    Dorsal metatarsal ligaments (ligg. metatarsalia dorsalia)

    Dorsal metatarsal ligaments (ligg. metatarsalia dorsalia)
    Dorsal metatarsal ligaments (ligg. metatarsalia dorsalia)

    Plantar metatarsal ligaments (ligg. metatarsalia plantaria)

    Plantar metatarsal ligaments (ligg. metatarsalia plantaria)
    Plantar metatarsal ligaments (ligg. metatarsalia plantaria)

    The metatarsophalangeal joints (articulationes metatarsophalangeae)

    Metatarsophalangeal joints (artt. metatarsophalangeae)
    Metatarsophalangeal joints (artt. metatarsophalangeae)

    The bones forming the joint are the 1st-5th proximal phalanges of the toes (phalanx proximalis) and the 1st-5th metatarsals (ossa metatarsalia I-V).

    The articular surfaces involved in the formation of the joint are the articular surfaces of the heads of the metatarsal bones and the articular surfaces of the bases of the proximal phalanges.

    Head of the metatarsal bones (caput ossis metatarsi)
    Head of the metatarsal bones (caput ossis metatarsi)
    Bases of the proximal phalanges (basis phalangis)
    Bases of the proximal phalanges (basis phalangis)

    The joint capsule is very thin and loose, it is attached along the edges of the articular surfaces.

    According to the classification, the joints are ellipsoid and biaxial.

    Flexion and extension of the toes, as well as their slight adduction and abduction are carried out in the joint.

    The fixing apparatus of the joint is composed of several ligaments:

  • These are the lateral and medial collateral ligaments (ligamenta collateralia mediales et laterales)

    Collateral ligaments (ligg. collateralia)
    Collateral ligaments (ligg. collateralia)
  • The plantar ligaments (ligamenta plantaria)

  • And the deep transverse metatarsal ligament (ligamentum metatarseum transversum profundum) passes transversely from the heads of the 1st to the head of the 5th of the metatarsals, fusing with the capsules of the metatarsal joints and connecting the heads of all metatarsal bones.

Deep transverse metatarsal ligament (lig. metatarsale transversum profundum)
Deep transverse metatarsal ligament (lig. metatarsale transversum profundum)

The interphalangeal joints of the foot (articulationes interphalangeae pedis)

The bones forming the joint are the phalanges of the toes (phalanges)

The articular surfaces involved in the formation of the joint are the articular surface on the head of one phalanx (caput phalangis) and the articular surface on the base of the other phalanx (basis phalangis).

Head of the phalanx (caput phalangis)
Head of the phalanx (caput phalangis)
Base of the phalanx (basis phalangis)
Base of the phalanx (basis phalangis)

The joint capsules are attached along the edges of the articular surfaces.

According to the classification, the joints are hinge and uniaxial.

Flexion and extension are carried out in the interphalangeal joints. At the same time, the motions of the thumb have a large amplitude.

The ligamentous apparatus of the joint includes collateral ligaments (ligamenta collateralia) and plantar ligaments (ligamenta plantari).

Collateral ligaments (ligg. collateralia articulationium interphalangearum)
Collateral ligaments
Plantar ligaments (ligg. plantaria articulationium interphalangearum)
Plantar ligaments
Dictionary

Joint of the foot

Tarsometatarsal joints
articulationes tarsometatarseae
Medial cuneiform bone
os cuneiforme mediale
Intermediate cuneiform bone
os cuneiforme intermedium
Lateral cuneiform bone
os cuneiforme laterale
Cuboid bone
os cuboideum
The 1st-5th metatarsals
ossa metatarsalia I-V
Dorsal tarsometatarsal ligaments
ligamenta tarsometatarsea dorsalia
Plantar tarsometatarsal ligaments
ligamenta tarsometatarsea plantaria
Interosseous cuneometatarsal ligaments
ligamenta cuneometatarsea interossea
Intermetatarsal joints
articulationes intermetatarseae
Metatarsal interosseous ligaments
ligamenta metatarsea interossea
Metatarsophalangeal joints
articulationes metatarsophalangeae
Proximal phalanges
phalanx proximalis
Lateral and medial collateral ligaments
ligamenta collateralia mediales et laterales
Plantar ligaments
ligamenta plantaria
Deep transverse metatarsal ligament
ligamentum metatarseum transversum profundum
Interphalangeal joints of foot
articulationes interphalangeae pedis
Phalanges of the toes
phalanges
Head of the phalanx
caput phalangis
Base of the phalanx
basis phalangis
Collateral ligaments
ligamenta collateralia
Plantar ligaments
ligamenta plantari
Main screen of the Easy Anatomy app

Download Easy Anatomy and try it for free

  • Anatomical atlas
  • Interactive notes
  • Videos on Anatomy
  • Flashcard tests

Easy Anatomy

Learn anatomy effectively

3.2K

Функция доступна в приложении

Download the app