An infant born with a genetic defect that causes little or no brown fat to be formed will have
difficulty absorbing nutrients from the intestine
difficulty regulating his body temperature
very stretchy tendons and skin
a reduced bone mass
difficulty breathing
The Correct Answer is B
A. difficulty absorbing nutrients from the intestine
This is related to gastrointestinal function, not brown fat. Brown fat is involved in thermoregulation, not nutrient absorption.
B. difficulty regulating his body temperature
Brown fat is specialized for non-shivering thermogenesis, particularly in newborns. Without it, the infant would struggle to generate body heat and maintain a stable temperature.
C. very stretchy tendons and skin
This suggests a connective tissue disorder like Ehlers-Danlos syndrome, not a defect in brown fat.
D. a reduced bone mass
Brown fat does not directly influence bone development or bone mass.
E. difficulty breathing
Respiratory function may be affected in other conditions, but brown fat deficiency does not directly impair breathing mechanics.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is E
Explanation
A. collagen, organic phosphate
This mixes the categories. Collagen is organic, and "organic phosphate" isn’t the correct term for bone mineral content.
B. calcium phosphate compound, osteoblasts and osteocytes
Osteoblasts and osteocytes are cells, not part of the organic matrix. The organic matrix is composed of proteins, primarily collagen.
C. collagen, calcium phosphate compound
This reverses the correct order. Calcium phosphate is inorganic, collagen is organic.
D. collagen, osteoblasts and osteocytes
Again, includes cells instead of matrix materials.
E. calcium phosphate compound, collagen
The inorganic matrix = hydroxyapatite (a calcium phosphate crystal). The organic matrix = collagen fibers, which give tensile strength and flexibility
Correct Answer is C
Explanation
A. neutrophils and macrophages are summoned to the area
This is an early step in the inflammatory phase to remove pathogens and debris.
B. blood fills the wound and a clot is formed
This occurs immediately after injury to stop bleeding and initiate repair.
C. granulation tissue is converted into connective tissue
This is part of the remodeling phase-the final stage-where the new tissue is matured and replaced with stronger connective tissue.
D. fibroblasts move in from surrounding connective tissue
This occurs during the proliferative phase, earlier than the final remodeling phase.
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