You have two of each:

ear, shoulder, foot, cheek, knee

(e.g. arm, hand, leg, eye)

Can be long:

nose, neck, finger, toe, nail

(e.g. arms, hair, tongue)

Can be broken:

nose, neck, tooth, shoulder, chest, finger, toe, foot, nail

(e.g. arm, leg, jaw)

Parts of a leg:

toe, foot, knee

(e.g. ankle, tigh, calf)

From the waist down: 

toe, foot, knee

(e.g. leg, ankle, tigh, calf)