The third segment consists of nine small bones, the carpals of the wrist or the tarsals of the ankle.
The carpals, tarsals, metacarpals, and metatarsals are all free.
Metacarpal I oblong, or rather conical, with a lateral enlargement, and situated in line with the distal row of carpals.
These are the actinosts (carpals or pterygials), which support the rays of the pectoral fin .
All the carpals of the proximal row—the scaphoid, lunar and cuneiform—are united, forming a single bone.
The carpals however interlock to a slight extent, and the corner of the magnum reaches the scaphoid.
carpals: Five; two on ulna side, two median and one on radial side in line with first metacarpal.
The radius and the ulna are completely separated, as are the carpals.
The tarsal bones of the Turtle do not retain their primitive arrangement to such an extent as do the carpals.
There is only one row of carpals present (the proximal row of other tetrapods).
"of the wrist," 1743, from Modern Latin carpalis, from carpus "wrist" (see carpus). Carpal tunnel syndrome attested by 1970, from carpal tunnel, the tunnel-like passage that carries nerves through the wrist.
carpal car·pal (kär'pəl)
Of, relating to, or near the carpus. n.
Any of the bones of the carpus, including the scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, and hamate bones.