Long bones are found in the appendicular skeleton, which is the portion of the skeleton that includes the limbs and their attachments. This means they are found in:

* Arms:

* Humerus: Upper arm bone.

* Radius: Forearm bone on the thumb side.

* Ulna: Forearm bone on the pinky side.

* Legs:

* Femur: Thigh bone.

* Tibia: Shin bone.

* Fibula: Smaller bone in the lower leg.

* Hands and Feet:

* Metacarpals: Bones of the hand.

* Metatarsals: Bones of the foot.

* Phalanges: Finger and toe bones.

Note: While long bones are primarily found in the limbs, the clavicle (collarbone) is also considered a long bone, even though it's in the axial skeleton.