Carpal Bone Siding

This is an online quiz called carpal bones.

Carpal bone siding.

On the palmar side the carpus is concave and forms the carpal tunnel which is covered by the flexor retinaculum. Hold for five to 10 seconds 3. Palmar surface flexor carpi ulnaris abductor. It articulates distally via a double facet with the base of mc 2.

Those between the radius and the proximal carpal bones except pisiform 8. Collectively the carpal bones form an arch in the coronal plane. Smallest carpal bone last to ossify sits at a plane anterior to the other carpal bones medial to guyon s canal 2. Make a fist with your thumb in.

Proximally the scaphoid and lunate articulate with the radius to form the wrist joint also known as the radio carpal joint. Each carpal except the pisiform in some cases can be sided unambiguously by identifying the facets for other carpals and applying your knowledge of the anatomical relationships between the carpal bones. Like all carpals the capitate possesses a distinctive irregular shape that makes it easy to identify and side. This has four articular surfaces and two nonarticular surfaces.

The eight carpal bones may be conceptually organized as either two transverse rows or three longitudinal columns. Even so because of the complex articulations of these bones positional siding tricks can be especially useful for carpals. When considered as paired rows each row forms an arch which is convex proximally and concave distally. Posts about siding carpals written by jb.

Click on the tags below to find other quizzes on the same subject. In the distal row all of the carpal bones articulate with the. Get your daily dose of wellness subscribe to our newsletter 1. Make a tight fist and open all your fingers fanning them as wide as possible.

Dorsal surface triquetrum 3. Sometimes called the lesser multangular is boot shaped and is the smallest carpal bone in the distal row. A carpal boss which is short for carpometacarpal boss is an overgrowth of bone where your index or middle finger meets the carpal bones. Touch the tip of your index finger and thumb making an o.

Your carpal bones are eight small bones that make up your. A membranous band the flexor retinaculum spans between the medial and lateral edges of the arch forming the carpal tunnel. Repeat this for five to 10 times. Articulations between the carpal bones in hand are an.