Pawpads of Puppy
Types of Pads on Dog's Paw

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Paw Pads
Cushion-like parts of animal feet.
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.
Pads are connected to bones by connective (collagenous) tissue.
Limb pads are of four types:

1)  carpal pads. Those of cats and dogs do not usually contact the ground.
2) metacarpal (or metatarsal) pads. Commonly known as heel pads.
3)   digital pads. Commonly known as toe pads.
4)   dew claw pads, usually on forelimb only.