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Hand Bones

Technical Specifications

The Hand Bones Model from AGN Enterprises is a detailed anatomical teaching aid designed to demonstrate the skeletal structure and arrangement of bones in the human hand. The model helps students identify the carpal bones, metacarpals, and phalanges while understanding their anatomical relationships with the wrist, palm, fingers, and thumb.

It is suitable for medical colleges, nursing institutes, physiotherapy colleges, occupational therapy programs, orthopedic departments, paramedical institutions, anatomy laboratories, and health-science training centers.

Anatomy of Hand Bones

The adult human hand normally contains 27 bones, organized into three principal groups:

Carpal Bones – 8

Metacarpal Bones – 5

Phalanges – 14

Together, these bones form the structural framework of the wrist, palm, fingers, and thumb and contribute to the remarkable range of movements possible in the human hand.

Carpal Bones

The wrist contains eight carpal bones arranged in two rows.

Proximal Row:

Scaphoid

Lunate

Triquetrum

Pisiform

Distal Row:

Trapezium

Trapezoid

Capitate

Hamate

The model helps students identify individual carpal bones and understand their positions relative to the radius, metacarpals, and neighboring bones.

Metacarpal Bones

The palm contains five metacarpal bones, numbered from I to V beginning on the thumb side.

Each metacarpal generally consists of a base, shaft, and head.

The metacarpals connect the carpal region with the phalanges and provide an important structural framework for hand movement and gripping.

Phalanges

The fingers contain a total of 14 phalanges.

The index, middle, ring, and little fingers each contain:

Proximal Phalanx

Middle Phalanx

Distal Phalanx

The thumb contains only a proximal and distal phalanx.

The model provides a clear three-dimensional representation of their arrangement.

Joints of the Hand

The Hand Bones Model can help students understand the skeletal components involved in important hand joints, including:

  • Intercarpal joints
  • Carpometacarpal joints
  • Metacarpophalangeal joints
  • Interphalangeal joints
  • Thumb carpometacarpal joint

These articulations contribute to gripping, grasping, fine manipulation, and coordinated finger movements.

Thumb Anatomy

The thumb has a distinctive skeletal arrangement that contributes to its high degree of mobility.

Its articulation with the trapezium is particularly important for opposition, allowing the thumb to move toward and interact with the fingers.

This feature is fundamental to many precision and gripping movements of the human hand.

Functional Importance of Hand Bones

The bones of the hand provide structural support while working together with muscles, tendons, ligaments, nerves, and joints.

Their arrangement enables movements involved in:

Gripping

Grasping

Writing

Pinching

Fine Motor Activities

Object Manipulation

Studying the bones provides an essential foundation for understanding the functional anatomy of the entire hand.

Educational Benefits

The Hand Bones Model provides students with a three-dimensional approach to studying skeletal anatomy.

Teachers can use it for lessons involving carpal bones, metacarpals, phalanges, hand joints, skeletal anatomy, musculoskeletal anatomy, physiotherapy, orthopedics, and occupational therapy.

The model supports bone identification, spatial visualization, practical demonstrations, and examination preparation.

Why Choose AGN Enterprises

AGN Enterprises supplies anatomical models, skeleton models, joint models, muscular teaching aids, scientific instruments, and educational laboratory equipment for medical colleges, nursing institutes, physiotherapy programs, paramedical institutions, and professional training centers.

Our anatomical teaching models provide clear three-dimensional representations for practical and classroom-based human anatomy education.

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