Where is the scaphoid located in the human body?
Table of Contents
Where is the scaphoid located in the human body?
The scaphoid bone is one of the carpal bones on the thumb side of the wrist, just above the radius.
Where is the snuff box located?
The anatomical snuffbox is a surface anatomy feature described as a triangular depression on the dorsum of the hand at the base of the thumb. The anatomical snuffbox is visible with ulnar deviation of the wrist and extension and abduction of the thumb.
Is the scaphoid proximal or distal?
proximal
Osteology. The scaphoid is the largest of the proximal row of carpal bones and sits on the radial side of the lunate. It is a boat-shaped bone that is oriented obliquely with its long axis aligned from the medial portion of the distal radius proximally to the articulation of the 1st and 2nd metacarpals distally.
What structures make up the anatomical snuff box?
The main contents of the anatomical snuffbox are the radial artery, a branch of the radial nerve, and the cephalic vein. The radial artery crosses the floor of the anatomical snuffbox in an oblique manner.
What is the clinical significance of the anatomical snuff box?
Its function is to keep the tendons of the extensor and outcropping muscles located below it, from bowing out when the muscles are contracted and tension on the tendons occurs.
What does scaphoid abdomen mean in medical terms?
Scaphoid abdomen is the term given to an inward concavity of the anterior abdominal wall. It is used both for the clinical appearance and its radiological equivalent. In children it maybe a sign of congenital diaphragmatic hernia. In both adult and pediatric patients, it raises the possibility of malnutrition.
What is scaphoid abdominal contour?
a condition in which the anterior abdominal wall is sunken and presents a concave rather than a convex contour.
What is a snuff box?
Definition of snuffbox : a small box for holding snuff usually carried about the person.
What are the borders of the snuff box?
As the snuffbox is triangularly shaped, it has three borders, a floor, and a roof:
- Ulnar (medial) border: Tendon of the extensor pollicis longus.
- Radial (lateral) border: Tendons of the extensor pollicis brevis and abductor pollicis longus.
- Proximal border: Styloid process of the radius.
Is the scaphoid part of the radius?
The scaphoid bone is one of the carpal bones of the wrist. It is situated between the hand and forearm on the thumb side of the wrist (also called the lateral or radial side). It forms the radial border of the carpal tunnel….
| Scaphoid bone | |
|---|---|
| TA2 | 1250 |
| FMA | 23709 |
| Anatomical terms of bone |
Where is snuff box tenderness?
scaphoid bone
The scaphoid bone is located on the thumb side of the wrist (see Figure 2) and is palpable in the anatomic snuff box (see arrow, in the figure below). Thus, a fracture of the scaphoid will produce tenderness near the anatomic snuff box.
What does snuff box tenderness mean?
Anatomic snuffbox tenderness is a highly sensitive test for scaphoid fracture, whereas scaphoid compression pain and tenderness of the scaphoid tubercle tend to be more specific.
Is a scaphoid abdomen normal?
A scaphoid abdomen is due to malnutrition. Skin abnormalities detected on inspection of the abdominal wall need to be correlated with the clinical history. Bruising should be correlated with a history of trauma to determine the possible organs injured.
What is a scaphoid waist fracture?
Description. A scaphoid fracture is usually described by its location within the bone. Most commonly, the scaphoid breaks in its mid-portion, called the “waist.” Fractures can also occur at both the proximal and distal ends of the bone.
What ligaments attach to the scaphoid?
The volar ligamentous complex connects the scaphoid to the distal radius and the adjacent of the carpal bones. The volar ligaments attaching to the scaphoid are made up of the radioscaphocapitate, scaphocapitate, scaphotrapezoidal, scaphotrapezial, transverse carpal, and radioscapholunate.
What are the causes of scaphoid abdomen?
Definition: The anterior abdominal wall is sunken and presents a concave rather than a convex contour. Comment: Scaphoid abdomen can be observed in diseases such as congenital diaphragmatic hernia (since the abdominal contents can be in the thorax).
What attaches to the scaphoid?
