A tissue has the following characteristics: some EC matrix, abundant collagen fibers oriented parallel to each other. Which of the following injuries results in damage to mainly this type of tissue?
broken femur bone
bullet penetrating the abdominal wall
tear in the cartilage of the knee
tear in the calcaneal tendon
The Correct Answer is D
A. broken femur bone
Bone tissue has a dense matrix with calcium salts and collagen fibers, but the collagen is not typically arranged in long, parallel bundles as in tendons.
B. bullet penetrating the abdominal wall
This would damage multiple tissues, including muscle, skin, and possibly organs, but it is not specific to dense regular connective tissue with parallel collagen fibers.
C. tear in the cartilage of the knee
Cartilage (e.g., fibrocartilage in the knee) has collagen, but the fibers are not organized in parallel; it's not the classic example of this connective tissue type.
D. tear in the calcaneal tendon
Tendons are made of dense regular connective tissue, which has parallel collagen fibers providing tensile strength. A tear here directly damages this specific tissue type.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. vitamin A
Vitamin A plays a role in bone remodeling, but excess vitamin A can cause bone fragility. It’s not the first recommendation in cases of brittle bones.
B. vitamin D
Vitamin D helps the body absorb calcium from the digestive tract. A deficiency can lead to osteomalacia (soft bones) or osteoporosis (brittle bones), and also contributes to tooth decay.
C. vitamin C
Vitamin C is needed for collagen synthesis, which is important in bone matrix formation, but deficiency leads to scurvy, not typically brittle bones and teeth loss in this context.
D. vitamin E
Vitamin E is an antioxidant but does not have a primary role in bone or dental health.
Correct Answer is A
Explanation
A. stratum basale
This is the deepest layer of the epidermis, and it contains mitotically active basal cells that regenerate the epidermis after injury.
B. stratum lucidum
This is a thin, transparent layer found only in thick skin (palms and soles). It does not contribute to regeneration.
C. stratum corneum
This is the outermost layer made of dead keratinized cells. It provides protection but does not regenerate tissue.
D. stratum granulosum
This layer helps in keratin formation but does not contain actively dividing cells and plays no major role in regeneration.
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