Which ribs have no fixation anteriorly?
a. 5th, 6th, and 7th ribs
b. 7th and 8th ribs
c. 8th, 9th, and 10th ribs
d. 11th and 12th ribs
ANS: D
Although ribs 3 through 7 articulate with the main sternal body, and the 8th through 10th ribs join anteriorly to the above ribs' cartilage, the 11th and 12th ribs have no anterior fixation.
Health Professions
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