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Understanding Anatomical Regional Terms

Aug 22, 2024

Anatomy Regional Terms

Major Regions of the Body

  • Axial Region

    • Covers head, neck, and trunk
    • Mnemonic: Ax = acts; think of cutting down a trunk with an ax.
  • Appendicular Region

    • Includes upper and lower limbs (appendages that attach to the body)

Axial Region Areas

  • Cephalic

    • Entire head region
    • Mnemonic: Starts with C and ends with lick (lick the head).
  • Cranial

    • Refers to the skull
    • Mnemonic: Rhymes with brain; houses the brain.
  • Frontal

    • Forehead area
    • Mnemonic: Front = four; forehead.
  • Ocular

    • Region of the eyes
    • Mnemonic: Binoculars used for sight.
  • Otic

    • Refers to the ear region
    • Mnemonic: Otoscope used by doctors for ear inspection.
  • Nasal

    • Region of the nose
    • Mnemonic: Nasal spray is used for the nose.
  • Buccal

    • Area of the cheeks
    • Mnemonic: Medication administered via buccal route (inside of the cheek).
  • Oral

    • Referring to the mouth
    • Mnemonic: Medication taken orally means by mouth.
  • Mental

    • Refers to the chin
    • Mnemonic: Men often have a prominent chin.
  • Occipital

    • Back/base of the skull
    • Related to occipital lobe and bone.

Neck Region

  • Cervical
    • Refers to the neck
    • Cervical vertebrae present here.

Trunk Region

  • Thoracic

    • Area between neck and abdomen
    • Corresponds to thorax in insects.
  • Axillary

    • Armpit region
    • Mnemonic: Ax deodorant for axillary region.
  • Mammary

    • Breast region (mammary glands).
  • Sternal

    • Named after the sternum bone (looks like a necktie).
  • Abdominal

    • Area of the abdomen (abs).
    • Can be divided into four quadrants or nine regions.
  • Umbilical

    • Area of the navel (belly button).
  • Pelvic

    • Region between hip bones.
  • Inguinal

    • Area where inguinal hernias can occur.
  • Pubic

    • Refers to external genitalia.
  • Perineal

    • Area between genitalia and anus (pericare).

Posterior Trunk Regions

  • Dorsal

    • Area of the back (dorsal fin in dolphins).
  • Vertebral

    • Area along the spine (vertebrae).
  • Lumbar

    • Lower back region.
    • Mnemonic: Lumbar support in chairs for lower back pain.
  • Sacral

    • Area where the sacrum bone is located.
  • Gluteal

    • Area of the buttocks (glutes).

Appendicular Region Areas

Upper Limb

  • Acromial

    • Bony part of the shoulder
    • Mnemonic: Acrobats stand on this.
  • Brachial

    • Refers to the arm.
    • Muscles: biceps brachii, triceps brachii.
  • Antecubital

    • Front of the elbow
    • Nurses often refer to it as AC.
  • Olecranal

    • Back of the elbow (olecranon).
    • Mnemonic: Elbow bump during the pandemic.
  • Antibrachial

    • Refers to the forearm (not the arm! The arm is from shoulder to elbow).
  • Carpal

    • Wrist area
    • Mnemonic: Carpals help drive a car.
  • Manual

    • Entire hand region.
  • Meta

    • Beyond the carpals (metacarpals are in the hand).
  • Palmar

    • Refers to the palm of the hand.
  • Pollux

    • Region of the thumb
    • Mnemonic: Pollux = thumbs up.
  • Digital

    • Refers to fingers.

Lower Limb

  • Coxal

    • Refers to the hip region.
    • Mnemonic: Cowboy cocks his gun at the coxal region.
  • Femoral

    • Whole thigh region (femur bone).
  • Patellar

    • Front of the knee (kneecap).
  • Popliteal

    • Back of the knee.
  • Cural

    • Front area of the leg (knee to ankle).
    • Mnemonic: Cricket pads cover the curl region.
  • Sural

    • Area of the calf muscle.
  • Pedal

    • Refers to the foot.
    • Mnemonic: Use your feet to pedal a bike.
  • Calcaneal

    • Region of the heel.
    • Mnemonic: Callus on the heel.
  • Tarsal

    • Ankle region.
    • Note the difference from carpal region.
  • Metatarsal

    • Area beyond tarsals (metatarsals in the foot).
  • Hallux

    • Region of the big toe.
    • Mnemonic: Use your hallux to walk down the hall.
  • Digital

    • Refers to toes.
  • Plantar

    • Region of the sole of the foot.

Conclusion

  • Important to connect anatomical terms to their functions or mnemonic devices for better understanding and memory retention.
  • Quiz and additional resources available in the description.