Which of the following best describe scar tissue?

Regeneration

Sarcoma

Meninges

Fibrosis

Answer and Explanation

The Correct Answer is D

A. Regeneration: Regeneration refers to the complete replacement of damaged tissue with the same type of cells, which is different from scar formation.

B. Sarcoma: Sarcoma is a type of malignant tumor originating in connective tissue, not a process of scar formation.

C. Meninges: The meninges are protective membranes surrounding the brain and spinal cord; they are unrelated to scar tissue formation.

D. Fibrosis: Fibrosis is the process of scar tissue formation when normal tissue is replaced by fibrous connective tissue after an injury.

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Correct Answer is B

Explanation

A. Increase the size of body structures: While tissue growth can contribute to body size, its primary function is not just increasing size but carrying out specific physiological roles.

B. Perform common functions: Tissues consist of similar cells that work together to perform specific functions, such as muscle contraction, nerve signaling, or support.

C. Deliver messages: Only nervous tissue specializes in transmitting messages, but other tissues have different functions.

D. Fight against diseases: The immune system fights diseases, but not all tissues are involved in this function.

A. For fluid balance B. As component of myelin sheath C. Component of hemoglobin D. As component of cell membrane E. As an energy source

Correct Answer is ["B","D","E"]

Explanation

A. For fluid balance: Lipids do not play a direct role in maintaining fluid balance; electrolytes and plasma proteins like albumin regulate this function.

B. As a component of the myelin sheath: Lipids, particularly phospholipids and cholesterol, are essential for forming the myelin sheath, which insulates nerve fibers and facilitates efficient nerve conduction.

C. Component of hemoglobin: Hemoglobin is composed of iron and protein (globin chains), not lipids.

D. As a component of the cell membrane: Cell membranes are composed of a lipid bilayer (phospholipids and cholesterol), which helps maintain structural integrity and fluidity.

E. As an energy source: Lipids provide a concentrated energy source, yielding 9 kcal per gram, which is more than carbohydrates (4 kcal/g).

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Which of the following best describe scar tissue?

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Naxlex Comprehensive Predictor Exams

Tissues are groups of similar cells working together to:

Correct Answer is B

Explanation

Lipids are needed by the body: (Select all that apply)

Correct Answer is ["B","D","E"]

Explanation

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Which epithelial membranes protect by forming a lining for all passages that are open to the exterior of the body?

As a person ages, the body is less able to metabolize glucose efficiently, which results in which condition?

Select the type of tissue that matches this description, binds together parts of the body: includes

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