Radius Anatomy and Function

This video tutorial provides a comprehensive overview of the radius bone, including its structure, features, and how to determine its side. It covers the attachments of muscles and ligaments on the radius and explains the ossification process. The tutorial is designed to help viewers understand the anatomy and development of the radius bone.

What is the anatomical position of the styloid process of the radius?

• Posteriorly, towards the back

• Anteriorly, towards the front

• Laterally, away from the body

• Medially, towards the body

Which feature of the radius helps in determining its side?

• Styloid process

• Radial tuberosity

• Capitulum

• Deltoid tuberosity

What is the shape of the head of the radius?

• Oval

• Square

• Disc-shaped

• Triangular

The superior surface of the radius head articulates with which part of the humerus?

• Trochlea

• Capitulum

• Olecranon

• Coronoid process

Which border of the radius is known for being the sharpest?

• Medial border

• Anterior border

• Posterior border

• Lateral border

What is the function of the interosseous membrane attached to the radius?

• Connects the radius to the scapula

• Connects the radius to the carpal bones

• Connects the radius to the humerus

• Connects the radius to the ulna

Which bone articulates with the triangular area on the inferior surface of the radius?

• Scaphoid

• Pisiform

• Trapezium

• Lunate

What is the primary function of the styloid process of the radius?

• Attachment for ligaments

• Attachment for muscles

• Articulation with the carpal bones

• Articulation with the ulna

Which muscle inserts on the rough posterior part of the radial tuberosity?

• Deltoid

• Brachialis

• Triceps brachii

• Biceps brachii

At what age does the lower end of the radius typically fuse?

• 15 years

• 25 years

• 10 years

• 20 years