What is the Anatomical Snuffbox also known as?
Radial Fossa
What is the Anatomical Snuffbox?
A Triangular Depression on the Lateral Aspect of the Dorsum of the Hand
At what level of the Hand is the Anatomical Snuffbox located?
The Level of the Carpal Bones
When is the Anatomical Snuffbox best seen?
When the Thumb is Extended
Why is this called the Anatomical Snuffbox?
It was used to hold snuff (ground tobacco) before inhaling in the nose
How many Borders does the Anatomical Snuffbox have?
- 3 x Walls
- 1 x Floor
- 1 x Roof
What are the 3 Walls of the Anatomical Snuffbox?
- Proximal Border
- Ulnar (Medial) Border
- Radial (Lateral) Border
What forms the Proximal Border of the Anatomical Snuffbox?
Styloid Process of the Radius
What forms the Ulnar (Medial) Border of the Anatomical Snuffbox?
Tendon of the Extensor Pollicis Longus
What forms the Radial (Lateral) Border of the Anatomical Snuffbox?
- Tendon of the Abductor Pollicis Longus
2. Tendon of the Extensor Pollicis Brevis
What forms the Floor of the Anatomical Snuffbox?
- Scaphoid
2. Trapezium
What forms the Roof of the Anatomical Snuffbox?
Skin
What are the main contents of the Anatomical Snuffbox?
- Radial Artery
- Terminal Branches of the Superficial Branch of the Radial Nerve
- Cephalic Vein
- Where is the Radial Artery located in the Anatomical Snuffbox?
- How does the Radial Artery do this?
- It Crosses the Floor
2. Obliquely
Where does the Radial Artery run in relation to the Extensor Tendons?
Deep
Can the Radial Pulse be palpated in the Anatomical Snuffbox?
Yes, in some patients.
Where are the Terminal Branches of the Superficial Branch of the Radial Nerve located?
Subcutaneously, Across the Roof
What do the Terminal Branches of the Superficial Branch of the Radial Nerve provide sensory innervation for?
Lateral 3 1/2 Digits of the Dorsum of the Hand and it’s associated Palmar Area
Where is the Cephalic Vein located in the Anatomical Snuffbox?
Subcutaneously, Across the Floor
Where does the Cephalic Vein arise from?
The Dorsal Venous Network of the Hand
