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Chapter 1
Descriptive terms
Term | Definition |
---|---|
Dorsal | Away from the ground. Surfaces BELOW the proximal, Opposite the Palmar and Plantar surfaces |
Ventral | Toward the ground. (Ex) Tongue is ventral to nasal cavity |
Cranial | Toward the head (ex) Neck is cranial to the tail) Anterior is cranial in the eye |
Caudal | Towards the tail (ex) Hindllimb is caudal to the forelilmb) Posterior is caudal in eye |
Rostral | Part of the head closer to the nose |
Palmar | Behind the Dorsal side of the forelimb. Below the proximal end of the carpus directed toward the ground. Replacing Caudal in the leg |
Plantar | Behind the Dorsal side of the back limb. Below the proximal end of the tarsus directed toward the ground.Replacing Caudal in the leg |
Medial | Toward the median plane. (ex) The chest is medial to the thoracic limbs |
Lateral | Farther from the median plane The shoulder is lateral to the ribs |
Proximal | The point nearest the trunk or point of origin of a limb, vessel, nerve or organ. (the elbow is proximal to the digit |
Distal | Farther from the trunk or point of origin of a limb, vessel, nerve or organ. (the carpus is distal to the elbow) |
Superficial | nearer the surface (Biceps brachii muscle is superficial to the humerus) |
Deep | farther from the surface (the femur is deep to the thigh muscles) |
Peripheral | distant from its point of origin; near the surface of the body. (nerves are peripheral to the CNS- brain and spinal cord |
Axial and abaxial | indicates the relative position tof the longitudinal axis of the limb (restricted to digits where axis pass the 3rd & 4th digits |
Axial | closer to the longitudinal axis (the inside of a digit) |
Abaxial | Farther from the longitudinal axis of a limb (the outside of a digit) |
External | Closer to the outer surface of a structure (the capsule is external to the kidney) |
Internal | Closer to the center of a structure (the medulla is internal to the cortex) |
Supra- (prefix) Above | A prefix signigying above or over (supraspinatus, supraorbital) |
Infra--(prefix) Beneath | A prefix signifying below or beneath (infraspinatus, infratrochlear) |