Anatomical Terminology

Directional Terms

• Used by medical personnel and anatomists allowing them to explain exactly where on body structure is in relation to another.

• We would say: The ears are located on each side of the head to the right and left of the nose.

• Using anatomical terminology: The ears are lateral to the nose.

• 1. The wrist is ________ to the hand.• 2. The breastbone is ___________ to the

spine.• 3. The brain is __________ to the spinal cord.• 4. The lungs are ___________ to the stomach.• 5. The mouth is ___________ to the nose.

Relative position

• http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP15305

Body Planes & Sections

• When preparing to look at internal structures of the body, medical students make a section or a cut. When the section is made through the body wall or an organ, it is made along an imaginary line called a plane.

Body Planes/Sections

• 1. Saggital- seperates body into left and right sides

• 2. Frontal- seperates body or organ into anterior and posterior parts

• 3. Transverse- seperates organ into superioir and inferior parts

Body planes

All together now

Wait…what? (Connect!)

• Sagittal

• Transverse

• Coronal

• Horizontal

• Median

• Frontal

With your creature…

• Show me a Sagittal Section

Sagittal/Median plane divides body into?

• Show me a frontal section

Coronal/frontal plane divides body into?

• Show me a transverse section

Transverse/horizontal plane divides body into?

All together now for real

Notice difference

(Posterior)

(Anterior)

Body Planes & Sections

• http://www.wisc-online.com/Objects/ViewObject.aspx?ID=AP15605

Body Cavities

• 1. Dorsal (protected by bone)– Cranial- contains brain– Spinal- contains spinal cord

• 2. Ventral– Thoracic- contains heart & lungs– Abdominopelvic• Abdominal- contains digestive organs (not protected by

bone)• Pelvic- contains reproductive organs, bladder, rectum

Body Cavities

Body Cavities

• http://www.mhhe.com/biosci/esp/2002_general/Esp/folder_structure/le/m1/s7/lem1s7_8.htm

Body Regions