Body regions, terminology, etc

Here is a video that will take you through many of the body regions:  surface regions of the human body

These images can be used for practice/study
(Click for a printable pdf of practice images Introduction images)

This image shows a human body in the anatomical position– use this image to practice labeling body regions, body planes, and directional terms (click on image for larger version).

01.04 body regions--sections practice

Directional terms: Here are some directional terms that most Anatomy students need to know:

  • proximal means closer to the body along a limb.
  • distal means farther from the body along a limb.
  • anterior or ventral means towards the front of the human body.
  • posterior or dorsal or caudal all mean towards the rear of the body.
  • superior means upwards towards the head
  • inferior means downwards towards the feet
  • medial means towards the middle or mid-line of the body
  • lateral means away from the mid-line of the body

Body sections/planes: These are the major planes of the body (most useful when looking at MRI or CT scan images)

  • sagittal section — A section down the body from the front or back. If you were cut in half on a sagittal plane there would be a left and a right half left behind.
  • frontal or coronal section — a section down through the body from the side. If you were cut in a frontal section there would be a front and rear half left behind.
  • transverse section — a horizontal section from the back, front, or side. If you were cut through your middle on a horizontal plane there would be a top and bottom half left behind.
  • oblique section — any diagonal section through the body.

 

Body Cavities

(click on images for larger version)

 

01.02 body cavities side labeled

01.01 body cavities front labeled

Notice how I’ve listed these cavities and how they are seen in the image above (for example:  The pericardial cavity is inside of the thoracic cavity, and the thoracic cavity is inside of the ventral cavity)

  • Ventral cavity
    • thoracic cavity
      • left pleural cavity
      • pericardial cavity
      • right pleural cavity
    • abdominopelvic cavity
      • abdominal cavity
      • pelvic cavity

 

Major organs

These are the organs easily seen from the front of a torso model.

01.05 major organs front labeled 01.07 major organs front 02 labeled

Here is a list of these organs that includes the cavities they are found in starting from the most specific or smallest cavity.

  • Brain — found in cranial cavity and dorsal cavity.
  • Right lung — found in right pleural cavity, thoracic cavity, and ventral cavity.
  • Heart — found in pericardial cavity, thoracic cavity, and ventral cavity.
  • Liver — found in abdominal cavity, abdominopelvic cavity, and ventral cavity.
  • Stomach — found in abdominal cavity, abdominopelvic cavity, and ventral cavity.
  • Large intestine — found in abdominal cavity, abdominopelvic cavity, and ventral cavity.
  • Small intestine — found in abdominal cavity, abdominopelvic cavity, and ventral cavity.

 

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