Where would be the BEST place to find red marrow in an adult?
in the medullary cavity of a long bone
in the epiphysis of a flat bone
in the medullary cavity of a flat bone
in the epiphysis of a long bone
in the epiphyseal plate of a long bone
The Correct Answer is D
A. in the medullary cavity of a long bone
In adults, the medullary cavity contains yellow marrow, not red marrow.
B. in the epiphysis of a flat bone
Flat bones (e.g., skull) don’t have epiphyses. This answer is anatomically inaccurate.
C. in the medullary cavity of a flat bone
Flat bones don’t have a true medullary cavity. Red marrow is found in their spongy bone, not in a central cavity.
D. in the epiphysis of a long bone
Red marrow in adults is found in the spongy bone of the epiphyses of long bones and in flat bones like the sternum and pelvis.
E. in the epiphyseal plate of a long bone
The epiphyseal plate is made of cartilage, not marrow. It is involved in growth, not hematopoiesis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. squamous cell carcinoma
This cancer arises from the keratinocytes of the stratum spinosum, often due to UV damage, and can metastasize if not treated early.
B. melanoma
Melanoma arises from melanocytes, which are found in the stratum basale, not the stratum spinosum.
C. basal cell carcinoma
This cancer originates from basal cells of the stratum basale, the deepest layer of the epidermis.
Correct Answer is A
Explanation
A. mucus: Mucous membranes line body cavities that open to the exterior, such as the respiratory, digestive, and urogenital tracts. They contain goblet cells that secrete mucus.
B. synovial: Synovial membranes line joint cavities and produce synovial fluid, not found in the respiratory tract.
C. serous: Serous membranes line body cavities that do not open to the exterior (e.g., pleura, pericardium, peritoneum) and secrete a watery fluid, not mucus.
D. peritoneal: The peritoneal membrane is a type of serous membrane lining the abdominal cavity, not the respiratory tract.
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