Many specimens in anatomy are sectioned so that the interior of the organ or region can be examined. It is important that the direction of the cut is known so that the proper orientation of the specimen is known. A heart looks very different if it is cut along its length as opposed to horizontally. A horizontal cut is known as a transverse section or a cross section. A cut that divides the body or an organ into anterior and posterior parts is a coronal section or frontal section. One that divides the structure into left and right parts is a sagittal section. If the body is divided directly down the middle the section is known as a midsagittal section. A midsagittal section is usually reserved for dividing the body into to equal left and right parts. If an organ (such as the eye) is sectioned into two equal parts such that there is a left and right half then this is known as a median section. Label the illustrations and color in the appropriate planes.
Answer Key: a. Frontal (coronal) plane, b. Transverse (cross-section) plane, c. Median (midsagittal) plane
The human body can be studied at different levels. Organs such as the stomach can be grouped into organ systems (digestive system) or can be studied on a smaller scale like the cellular level. The ranking of these levels is called a hierarchy. The smallest organizational unit is the atom. Individual atoms are grouped into larger structures called molecules.
These in turn make up organelles, which are part of a larger, more complicated systems called cells. Cells are the structural and functional units of life. Cells are clustered into tissues. Organs are discreet units made up of two or more tissues and organs are grouped into organ systems that compose the organism. Label the levels of the hierarchy and color each item a different color.
In anatomy the abdomen is divided into nine regions. Write the names of the regions in the spaces indicated. Color both the left and right hypochondriac regions in light blue. Hypochondriac means "below the cartilage." The common use of the word (someone who thinks they are sick all the time) reflects the Greek origin of the word as the ancient Greeks considered the region to be the center of sadness. Inferior to the hypochondriac regions are the lumbar or lateral abdominal regions. These are commonly known as the "love handles." Use yellow for these regions. Below the lumbar regions are the inguinal or iliac regions. You should color in these regions with the same shade of green. In the middle of the abdomen is the umbilical region. Color this region in red. Above this is the epigastric region (epi = above and gastric = stomach). Color this region in purple. Below the umbilical region is the hypogastric region (hypo = below). Color this region in a darker blue.
In clinical settings a quadrant approach is used. Write the names of the regions (right upper quadrant, left upper quadrant, right lower quadrant, left lower quadrant) in the spaces provided. Color each quadrant a different color.
Answer Key: a Right hypochondriac, b. Right lumbar (lateral abdominal), c. Umbilical, d. Right inguinal or iliac, e. Epigastric, f. Left hypochondriac, g. Left lumbar (lateral abdominal), h. Left inguinal or iliac, i. Hypogastric, ). Left upper quadrant, k. Right upper quadrant, I. Left lower quadrant, m. Right lower quadrant
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