Introduction to Clinical Language

Anatomical terms of location

Anterior and posterior

  • Anterior: nearer to the front of the body
  • Posterior: nearer to the back of the body

Medial and lateral

  • Medial: nearer to the midline
  • Lateral: further from the midline

Superior/cranial and inferior/caudal

  • Superior/cranial: nearer to the top of the head
  • Inferior/caudal: nearer to the soles of the feet

Proximal and distal

  • Proximal: nearer to the attachment of the limb from the body
  • Distal: further from the attachment of the limb to the body

Superficial and deep

  • Superficial: nearer to the surface of the body
  • Deep: further from the surface of the body

External or internal

  • External: further from the centre of body/organ
  • Internal: nearer to the centre of the body/organ

Major and minor

  • Relatively larger and smaller structures with the same names

Terms of laterality

  • Unilateral: structure normally found on one side of body
  • Bilateral: normally paired structures; a right and a left
  • Midline: single structure located at/near midline
  • Ipsilateral: structure lies on the same side of the body as the other structure/location it is being compared to
  • Contralateral: structure lies on the opposite side of the body as the other structure/location it is being compared to

Terms of movement

  • Flexion: decreasing the angle between the bones at a joint
  • Extension: increasing the angle between the bones at a joint
  • Abduction: movement away from the median plane
  • Adduction: movement towards the median plane
  • Internal (medial) rotation: anterior surface of a limb rotates towards the median plane
  • External (lateral) rotation: anterior surface of a limb rotates away from the median plane
  • Circumduction: circular movement at a joint

Specific terms of movement

Ankle
  • Dorsiflexion: dorsal surface of the foot moves superiorly
  • Plantar flexion: plantar surface of the foot moves inferiorly
Foot
  • Eversion: sole of the foot rotates away from the median plane such that the sole faces laterally
  • Inversion: sole of the foot rotates towards the median plane so that the sole faces medially
Forearm
  • Pronation: anterior surface of the forearm rotates such that the palm of the hand faces posteriorly (internal rotation)
  • Supination: forearm rotates from the pronated position back into the anatomical position
  • Semi-prone: the position of the hand and forearm halfway between the supine and prone positions
Other
  • Lateral flexion: movement of spine to side (right or left)
  • Rotation of trunk and neck
  • Elevation (superior movement) and depression (inferior movement) of the shoulders
  • Protraction (anterior movement) and retraction (posterior movement) of the jaw/shoulders

Anatomical planes

  • Sagittal plane: a vertical line which divides the body into a left section and a right section
  • Coronal plane: a vertical line which divides the body into a front (anterior) section and back (posterior) section
  • Transverse plane: a horizontal line which divides the body into an upper (superior) section and a lower (inferior) section
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