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 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 B
Explanation
A. apocrine: Apocrine glands release part of their cytoplasm with the secretion, which can include membrane-bound substances like phospholipids.
B. merocrine: Merocrine glands secrete products via exocytosis without releasing any cytoplasm or membrane material. Their secretions do not contain phospholipids.
C. sebaceous: Sebaceous glands are holocrine glands that release the entire cell contents, including membrane lipids such as phospholipids.
D. holocrine: These glands release whole cells that disintegrate, leading to secretions rich in lipids, including phospholipids.
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