Which structure is located on the sternum?
Hyoid bone
Xiphoid process
Ossa coxae
Sesamoid bone
The Correct Answer is B
The xiphoid process is a small, cartilaginous extension located at the inferior end of the sternum (breastbone), which serves as an atachment site for certain abdominal muscles. The hyoid bone is a U- shaped bone located in the neck, not on the sternum. The ossa coxae are also known as the hip bones, which are in the pelvic region, not on the sternum. Sesamoid bones are small, rounded bones that are embedded within tendons and can be found in various locations throughout the body, but not necessarily on the sternum.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The left ventricle of the heart normally has the thickest wall, which is composed mainly of cardiac muscle tissue (myocardium). The left ventricle has to generate enough force to pump oxygen-rich blood to the rest of the body through the systemic circulation, which requires greater muscular effort than the right ventricle, which pumps blood only to the lungs via the pulmonary circulation. The thickness of the left ventricular wall ensures that it can withstand the pressure required to generate this forceful contraction.
Correct Answer is A
Explanation
The anatomical position is a standardized reference position used to describe the human body. In this position, the person stands erect with their feet together and their arms at their sides, with the palms of the hands facing forward (anteriorly). This position is used as a reference for describing the location of different parts of the body.
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