12 Questions
The radius and ulna are long bones that make up the ______
forearm
In the anatomical position, the radius is found in the ______ forearm, while the ulna is found in the medial forearm
lateral
Ulna has a large proximal end which articulates with the ______
humerus
The radius is shorter than the ulna and has a small proximal end that articulates with the ______
humerus
The carpal bones are eight irregularly-shaped bones located in the ______ region
wrist
The metacarpal bones are five long bones of the hand between the carpal bones and the proximal ______ of the hand
phalanges
What are the three parts of the ulna's proximal end?
Olecranon, trochlear notch, radial notch
How does the position of the radius and ulna differ in the anatomical position?
Radius is found in the lateral forearm, while the ulna is found in the medial forearm
What are the three parts of the radius's proximal end?
Head, neck, radial tuberosity
What are the borders of the ulna's shaft (body)?
Anterior, posterior, and interosseous borders
Where do the metacarpal bones lie in relation to the carpal bones and the hand's proximal phalanges?
Between the carpal bones and the proximal phalanges of the hand
How do the lengths of the radius and ulna compare?
The radius is shorter than the ulna
Study Notes
Forearm Bones
- The radius and ulna are long bones that make up the forearm.
Anatomical Position
- In the anatomical position, the radius is found in the lateral forearm, while the ulna is found in the medial forearm.
Ulna
- The ulna has a large proximal end that articulates with the humerus.
- The three parts of the ulna's proximal end are the olecranon, coronoid process, and radial notch.
- The borders of the ulna's shaft (body) include the anterior border, posterior border, and medial border.
Radius
- The radius is shorter than the ulna and has a small proximal end that articulates with the capitulum of the humerus.
- The three parts of the radius's proximal end are the head, neck, and radial tuberosity.
Hand Bones
- The carpal bones are eight irregularly-shaped bones located in the wrist region.
- The metacarpal bones are five long bones of the hand between the carpal bones and the proximal phalanges.
- The metacarpal bones lie between the carpal bones and the hand's proximal phalanges.
Test your knowledge of the bones in the forearm and hand with this quiz. Learn about the structure and functions of the ulna and radius bones.
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