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Multiple Choice
Which landmark of the hip bone can be felt when sitting on a hard chair?
A
Ischial tuberosity
B
Acetabulum
C
Pubic symphysis
D
Iliac crest
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Verified step by step guidance
1
Step 1: Begin by identifying the anatomical landmarks of the hip bone. The hip bone is composed of three main parts: the ilium, ischium, and pubis. Each of these has specific landmarks that serve different functions.
Step 2: Understand the function and location of the ischial tuberosity. The ischial tuberosity is a bony prominence located on the ischium, which is the lower and posterior part of the hip bone. It serves as the attachment site for muscles and bears weight when sitting.
Step 3: Compare the ischial tuberosity to the other options provided. The acetabulum is the socket for the femur, the pubic symphysis is a cartilaginous joint at the front of the pelvis, and the iliac crest is the upper ridge of the ilium. None of these are directly involved in bearing weight while sitting.
Step 4: Relate the ischial tuberosity to the act of sitting. When sitting on a hard surface, the ischial tuberosities are the parts of the hip bone that make contact with the surface and bear the body's weight.
Step 5: Conclude that the correct answer is the ischial tuberosity, as it is the landmark of the hip bone that can be felt when sitting on a hard chair.