Thoracic and Abdominal Walls
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15 questions
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- Q1Which of the following is FALSE regarding the sternal angle?It is at the level of the third costal cartilageIt is the angle between the manubrium and body of the sternumIt is the manubriosternal jointIt is also at the level of the intervertebral disc 430s
- Q2How many pairs of true ribs are there?876530s
- Q3Which muscles depress the ribs during forced respiration?Only innermost intercostalsOnly external intercostalsOnly internal intercostalsInternal and innermost intercostals30s
- Q4In a typical intercostal space, the intercostal nerve is locatedIt is not in the intercostal spaceInferiorSuperiorMiddle30s
- Q5The most superficial layer in the abdominal wall is theExternal intercostal muscleInternal oblique muscleTransversus abdominis muscleExternal oblique muscle30s
- Q6The conjoint tendon is formed by theRectus abdominisInnermost IntercostalExternal intercostalInternal oblique and transversus abdominis30s
- Q7Which of the following is FALSE regarding the rectus sheath?The internal oblique aponeurosis splits below the arcuate line to contribute to the anterior and posterior layersThe arcuate line is midway between the umbilicus and pubic symphysisAll three aponeuroses pass anterior to the rectus abdominis below the arcuate lineA difference in composition is marked by the arcuate line30s
- Q8The function of the anterolateral abdominal wall muscles isIncrease intra-abdominal pressureSupport and protect abdominal organsAll answers are trueMove the trunk and help maintain posture30s
- Q9The deep inguinal ring is created fromRectus sheathThe transversalis fasciaThe external oblique aponeurosisInternal oblique aponeurosis30s
- Q10The floor of the inguinal canal is formed by theInguinal ligamentTransversalis fasciaInternal oblique and transversus abdominisExternal oblique aponeurosis30s
- Q11Which of the following is FALSE regarding the inguinal canal?It transmits the spermatic cord in malesIt transmits the round ligament of the uterus in femalesIt lies inferior to the medial half of the inguinal ligamentIt is associated with hernias30s
- Q12The most common type of hernia isAll types of hernias present equallyIndirectDirect30s
- Q13A direct inguinal herniaFollows the path of descent of the embryonic testisLeaves the abdominal cavity lateral to the inferior epigastric arteryIs more likely to descend into the scrotum than an indirect inguinal herniaProtrudes through the inguinal triangle30s
- Q14Factors affecting a direct inguinal hernia includePressure of the posterior wall of the inguinal canal toward the anterior wallLocation of the conjoint tendon behind the superficial inguinal ringCoughing and strainingContraction of internal oblique and transversus abdominis muscles30s
- Q15An indirect inguinal hernia can occur in womenTRUEFALSE30s