What are the 5 metacarpals?

• Overview. Metacarpal bone. Ossa metacarpi.
• First metacarpal bone. 1st metacarpal bone. Os metacarpi 1.
• Second metacarpal bone. 2nd metacarpal bone. Os metacarpi 2.
• Third metacarpal bone. 3rd metacarpal bone. Os metacarpi 3.
• Fourth metacarpal bone. 4th metacarpal bone. Os metacarpi 4.
• Fifth metacarpal bone. 5th metacarpal bone.

How many bones are in Carpals?

Your wrist is made up of eight small bones (carpal bones) plus two long bones in your forearm — the radius and the ulna. The most commonly injured carpal bone is the scaphoid bone, located near the base of your thumb.

How many bones are in the human body hand?

Hand Anatomy. The human hand is made up of the wrist, palm, and fingers and consists of 27 bones, 27 joints, 34 muscles, over 100 ligaments and tendons, and many blood vessels and nerves.

What kind of bone are metacarpals?

Long bones are mostly located in the appendicular skeleton and include bones in the lower limbs (the tibia, fibula, femur, metatarsals, and phalanges) and bones in the upper limbs (the humerus, radius, ulna, metacarpals, and phalanges).

What are the 3 bones of the phalanges?

Phalanges: The bones of the fingers and of the toes. There are generally three phalanges (distal, middle, proximal) for each digit except the thumbs and large toes. The singular of phalanges is phalanx.

What are metatarsal bones?

The metatarsal bones are the bones of the forefoot that connect the distal aspects of the cuneiform (medial, intermediate and lateral) bones and cuboid bone to the base of the five phalanges of the foot. There are five metatarsal bones, numbered one to five from the hallux (great toe) to the small toe.

How many metacarpals are in both hands?

There are five metacarpal bones in each hand. There are proximal, intermediate, and distal phalanges in each digit except for the thumb, which lacks an intermediate phalange.

What are the 27 bones in the hand?

The human hand has 27 bones: the carpals or wrist accounts for 8; the metacarpals or palm contains five; the remaining fourteen are digital bones; fingers and thumb. The palm has five bones known as metacarpal bones, one to each of the 5 digits. These metacarpals have a head, a shaft, and a base.

Where are the metacarpals?

In humans the five metacarpals are flat at the back of the hand and bowed on the palmar side; they form a longitudinal arch that accommodates the muscles, tendons, and nerves of the palm. The metacarpals also form a transverse arch that allows the fingertips and thumb to be brought together for manipulation.

Are metacarpals short bones?

Medical Definition of Bone type Short bones: Short bones also have a tubular shaft and articular surfaces at each end but are much smaller. The short bones include all of the metacarpals and phalanges in the hands, and the metatarsals and phalanges in the feet.

How do you number metacarpals?

They are numbered moving lateral to medial, and start with the thumb, which is metacarpal I, and end with metacarpal V, the little finger. Each metacarpal consists of a base, shaft, and head, with the concave lateral and medial borders of the shaft allowing attachment of the interossei muscles.

Is thumb a finger?

A thumb is a digit, but not technically a finger. Many people don’t make the distinction between thumbs and other digits.

How long does it take for a broken metacarpal bone to heal?

Most metacarpal fractures fully heal in about 10 weeks, therefore it’s normal to have some stiffness and swelling for that length of time. Metacarpal fractures are generally described by the location of the fracture. Fractures in the center of the bone are called metacarpal shaft fractures.

How many phalanges are in each hand?

Phalanges of the hand Proximal phalanges. Each hand has a total of five proximal phalanges, one in each digit. Middle phalanges. There are four middle (intermediate) phalanges in each hand because the thumb is missing one. Distal phalanges. Each hand has five distal phalanges, which look shorter and slightly thicker compared to the previous two sets.

How many bones are in the carpals?

Carpals. Carpals are bones found in the hand. They are also called wrist bones as they are in the wrist. There are eight carpals in each hand. Any easy way to remember the eight bones in order is “Some Lovers Try Positions That They Can’t Handle.” for Scaphoid , Lunate, Triquetrum , Pisiform , Trapezium , Trapezoid, Capitate, Hamate .