Which is not part of your appendicular skeleton?
Ulna.
Ethmoid bone.
Ilium.
Patella.
The Correct Answer is B
The ethmoid bone is a part of the axial skeleton, not the appendicular skeleton.
The axial skeleton consists of the bones of the skull, vertebral column, ribs, and sternum.
Choice A is incorrect because the ulna is a part of the upper limb, which is supported by the pectoral girdle.
Choice C is incorrect because the ilium is a part of the hip bone, which forms the pelvic girdle.
Choice D is incorrect because the patella is a part of the lower limb, which is supported by the pelvic girdle.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["Acetabulum"]
Explanation
acetabulum is the concave cavity located on the lateral surface of the hip bone.
It is formed by the fusion of the ilium, ischium, and pubis bones.
The acetabulum articulates with the head of the femur to form the hip joint, which is a ball-and-socket joint that allows for a wide range of movement.
The acetabulum is lined with articular cartilage, which provides a smooth surface for the head of the femur to move against.
The acetabulum is also surrounded by a fibrocartilaginous ring called the acetabular labrum, which deepens the socket and helps to stabilize the hip joint.
Injuries to the acetabulum can result in hip dislocations or fractures, which can be very painful and require medical intervention.
Correct Answer is C
Explanation
The thumb has three joints: the carpometacarpal (CMC) joint, the metacarpophalangeal (MP) joint, and the interphalangeal (IP) joint.
The CMC joint is a saddle type of joint that allows the thumb to move in multiple directions. A saddle joint has two concave surfaces that fit together like a rider on a horse.
Choice A is incorrect because hinge joints allow only flexion and extension movements, such as the IP joints of the thumb.
Choice B is incorrect because condylar joints have an oval-shaped surface that articulates with a shallow cavity, such as the MP joint of the thumb.
Choice D is incorrect because ball and socket joints have a spherical head that fits into a cup-like socket, such as the shoulder or hip joints.
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