Palpation
What will be an ideal response?
In-class palpation can be fun. Put up an overhead that includes the thoracic and cervical vertebrae, as well as the sternum (a figure of the anterior skeleton works well). Have students find the sternal notch. Now have them move their fingers down along the margin, so they can feel the clavicle as it articulates with the manubrium sterni. Have students find the notch again and then move their fingers down to the manubrosternal joint. With one finger on the notch and the other on the joint, they can see how large (or small!) the manubrium is. Note that the notch is a prominence that joins the two structures of the manubrium and the corpus sterni.
Next, have students move down to the xiphoid process and feel it. Ask students who have taken a CPR class to describe its significance to someone who is about to perform CPR. The xiphoid is a bit mobile, and they can feel some movement there. Now remind them that their fingers are only about a centimeter away from the sternal attachment of the diaphragm! Next, have them run their fingers from the xiphoid around the bottom of the rib cage, and note that this is the anterior/lateral costal attachment for the diaphragm.
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