Cranial/Superior: refers to the skull and mandible; a relative term used for quadrupedal organisms (those that travel on four legs) to describe features that are closer to the head or top of the body; opposite of caudal. The term superior is a synonym commonly used when referring to bipedal hominin anatomy.

Labial: for incisors and canines, a relative term referring to the part of the tooth that is closer to the front of the mouth or lips; the opposite of lingual.

Distal: a relative term used to describe a part of a limb that is farther from the attachment point to the trunk of the body; the opposite of proximal.

Distal: a relative term used to describe a part of a limb that is farther from the attachment point to the trunk of the body; the opposite of proximal.

Mesial: for premolars and molars, a relative term referring to the part of the tooth that is closer to the front of the mouth or lips; the opposite of distal.

Plantar: a relative term that describes features on the inferior portion of the foot; the sole.

Proximal: a relative term used to describe a part of a limb that is closer to the attachment point to the trunk of the body; the opposite of distal.

Ventral/Anterior: a relative term used for quadrupedal animals (those that travel on four legs) to describe features that are closer to the belly or front of the body; opposite of dorsal. The term anterior is a synonym commonly used when referring to bipedal hominins. For the hand, palmar, and for the foot, plantar, are synonyms for ventral.

Palmar: a relative term used to describe a feature on the anterior portion of the hand; the side with the palm.

Medial: a relative term used to describe features that are closer to the midline or center of the body; the opposite of lateral.

Lateral: a relative term used to describe features that are farther from the midline or center of the body; the opposite of medial.

Dorsal/Posterior: a relative term used for quadrupedal organisms (those that travel on four legs) to describe features that are closer to the spine or back of the body; opposite of ventral. The term posterior is a synonym commonly used when referring to bipedal hominin anatomy.

Caudal/Inferior: the relative term used for quadrupedal animals (those that travel on four legs) to describe features that are closer to the tail of the trunk; the opposite of cranial; the term inferior is a synonym commonly used when referring to bipedal hominins.

Occlusal: a relative term referring to the part of the mouth or tooth that is closer to the crown of the tooth.

Buccal: for premolars and molars, a relative term referring to the part of the tooth that is closer to the cheek, the opposite of lingual.

Lingual: a relative term referring to the part of the tooth that is closer to the tongue; the opposite of buccal and labial.