Glossary
![Carpal Pad of Kitten](../../../../images/content%20images/Resampled/C/Cat%20Illustration%20of%20Carpal%20Pad.jpg)
Pad
Cushion-like part of animal foot.
The tough, superficial cutis (outer layer of skin) of the pad is keratinized and hairless.
Under the cutis is the thick subcutis. The fatty (adipose) tissue of the subcutis provides a cushion to absorb shock during locomotion.
The tough, superficial cutis (outer layer of skin) of the pad is keratinized and hairless.
Under the cutis is the thick subcutis. The fatty (adipose) tissue of the subcutis provides a cushion to absorb shock during locomotion.
Carpus
The joint and bones of an animal’s forelimb that correspond to the human wrist.
![Carpus of Kitten](../../../../images/content%20images/Small%20Left%20Pane%20Images/Kitten%20Carpus%20SL.jpg)
![Carpus of Kitten](../../../../images/content%20images/Small%20Left%20Pane%20Images/Kitten%20Carpus%20SL.jpg)
Pastern
The metacarpal region of the forelimb or the metatarsal region of the hind limb.
![Pastern of Domestic Dog](../../../../images/content%20images/Small%20Left%20Pane%20Images/Metacarpals%20SL.png)
![Pastern of Domestic Dog](../../../../images/content%20images/Small%20Left%20Pane%20Images/Metacarpals%20SL.png)
Register
To imprint a track on the substrate.
![Lion Registers Paw](../../../../images/content%20images/Small%20Left%20Pane%20Images/Lion%20Register%20in%20Mud%20SL.jpg)
![Lion Registers Paw](../../../../images/content%20images/Small%20Left%20Pane%20Images/Lion%20Register%20in%20Mud%20SL.jpg)
Track
Impression or indentation made on the substrate (ground) by a foot.
![Dog Track in Sand](../../../../images/content%20images/Small%20Left%20Pane%20Images/Dog%20Footprint%20in%20Sand.jpg)
![Dog Track in Sand](../../../../images/content%20images/Small%20Left%20Pane%20Images/Dog%20Footprint%20in%20Sand.jpg)
Substrate
The surface on which tracks may be made.
![Dog Tracks in Snow](../../../../images/content%20images/Small%20Left%20Pane%20Images/Dog%20Toe%20Impressions%20in%20Snow.jpg)
![Dog Tracks in Snow](../../../../images/content%20images/Small%20Left%20Pane%20Images/Dog%20Toe%20Impressions%20in%20Snow.jpg)
Tarsal Pad
The limb pad located at the tarsus.
Down In Pastern
Structural weakness causing the pasterns to slant at an excessively horizontal angle, or to bend excessively when weight is borne.
At its extreme, being down in pastern is to stand or move on pasterns, as well as on the toes.
At its extreme, being down in pastern is to stand or move on pasterns, as well as on the toes.
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