After the law firm retreat, attorney George is exiled to live in the most northern region of Greenland where he never gets any sunlight. What might be a result with regard to his skeletal system?
he could develop brittle bones
he could develop very dense bones
he could develop soft, bowed bones
he could develop nightmares
The Correct Answer is C
A. he could develop brittle bones
Brittle bones are more associated with osteoporosis or osteogenesis imperfecta, not primarily from vitamin D deficiency due to lack of sunlight.
B. he could develop very dense bones
Dense bones are seen in conditions like osteopetrosis, which results from defective osteoclast activity-not lack of sunlight.
C. he could develop soft, bowed bones
Lack of sunlight leads to vitamin D deficiency, impairing calcium absorption, which causes rickets in children and osteomalacia in adults, both of which involve soft, weakened bones that may bow under body weight.
D. he could develop nightmares
While isolation might impact mental health, this has no direct link to skeletal effects or bone physiology.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. papillary layer of dermis – fingerprints and toeprints
Correct match. The dermal papillae in this layer interlock with the epidermis and form ridges that result in fingerprints and toeprints.
B. stratum basale – most mitotically active layer of epidermis
Correct match. The stratum basale contains basal cells that divide continuously to replenish the upper layers.
C. reticular layer of dermis – arranged in lines of cleavage
Correct match. The dense irregular connective tissue in this layer has collagen fibers oriented in specific directions (cleavage lines), which is clinically important for surgical incisions.
D. epidermis – structural strength of the skin
Incorrect match. The dermis provides the structural strength of the skin due to its collagen and elastic fibers. The epidermis offers protection but does not contribute significant structural strength.
Correct Answer is E
Explanation
A. mesenchyme
Mesenchyme is a type of embryonic connective tissue from which all adult connective tissues develop. It has a fluid matrix and undifferentiated cells.
B. osteochondral
This is nota recognized fetal stem tissue type. It refers more to regions with both bone and cartilage precursors, but it's not a stem connective tissue.
C. mucous
Mucous connective tissue, found in the umbilical cord (Wharton's jelly), is another type of fetal stem connective tissue.
D. A & B
Mesenchyme is correct, but osteochondral is not a true fetal stem connective tissue.
E. A & C
Both mesenchyme and mucous connective tissue are fetal connective tissues with stem-like properties.
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