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3 years ago

A gene is a segment of

Medicine

1 answer:

mr_godi [17]3 years ago

5 0

Answer: b. DNA

Explanation:

DNA is a genetic material commonly found in all living beings. It is present in a thread like structure that is called as the chromosome. The DNA is double helical structure which exhibits the segments of small units called as the genes. The gene is a hereditary material which encodes for a particular protein. Each gene is responsible for determining a particular trait in living beings.

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Mucous membranes arise from which layer of the fertilized egg?

Aleksandr [31]

Answer:

Most correct answer is all of the germ layers

Explanation:

Mucous membranes constitute the innermost layer of a number of hollow organs (i.e.: gastrointestinal tract). They are composed of an epithelial lining which overlies a deeper layer of connective tissue. Typically, each of these components arises from a different germ layer. For instance: the mucous lining of the gut arises from a combination of endoderm-derived epithelium and lateral mesoderm-derived connective tissue. Other mucous membranes may have different origins, for example: The mucous lining of the oral cavity is composed of ectoderm-derived epithelium and underlying connective tissue derived from head mesenchyme (combination of cephalic neural crest and paraxial mesoderm).

Summary:

Mucous Membrane = Epithelium (derived mainly from endoderm, followed by ectoderm, rarely mesoderm) + Underlying Connective Tissue (usually mesoderm)

5 0

3 years ago

Plasma is a component of edema

Alex777 [14]

Answer:

Edema occurs when an excessive volume of fluid accumulates in the tissues, either within cells (cellular edema) or within the collagen-mucopolysaccharide matrix distributed in the interstitial spaces (interstitial edema)

Explanation:

The definition of edema is a swelling due to the expansion of interstitial fluid volume in tissues or an organ. Several clinical conditions present with edema, making it a critical clinical feature for diagnostic medicine. Edema can present in numerous forms including unilateral, bilateral, localized, or generalized edema. Therefore, it is vital to assess the unique presentation and mechanism of edema to understand how it relates to disease pathophysiology, clinical presentation, and treatment. This review will present an overview of the general and cellular characteristics of edema, the mechanism, and pathophysiology of edema, and how edema relates to a specific disease presentation and development.

5 0

3 years ago

7 on the pH scale is considered ____________ where the number of hydroxide (OH) ions is equal to the number of _________ ions.

VashaNatasha [74]

Answer:

Neutral; protons (H+)

Explanation:

At neutral pH, the hydroxide and proton ions are equal.

4 0

3 years ago

A 5-month-old child is admitted to the hospital with recurring respiratory infections. A possible cause of this condition is:.

Sergeeva-Olga [200]

Answer:

Hypergammaglobulinemia

Explanation:

7 0

2 years ago

A nurse is teaching about a new prescription for infliximab to a client who has rheumatoid arthritis. Which of the following inf

Phoenix [80]

Answer: Opcion A. "You will receive a Mantoux test before the initial medication dose"

Explanation: The INFLIXIMAB is one of the medications used for treating Rheumatoid arthritis, among other inflammatory diseases as psoriasic arthritis, ankylosing spondylitis, Crohn's disease. It is used when the regular treatment has not worked. It helps to reduce pain and joint inflammation.

The mechanism of action of the INFLIXIMAB is to reduce a substance called TNFα (Tumor Necrosis Factor α) responsible for the inflammatory response that helps the body against an antigen. Because this medication reduces this body defense, it is important for the health providers to know in advance if there is a condition or disease in the immune system, cancer, or something that per se, could predispose to infections.

The Mantoux test is a tuberculin skin test that is used to know if a person has an infection with Mycobacterium tuberculosis, the bacteria responsible of causing Tuberculosis. In the test, a tuberculin protein called PPD is used to be injected into the skin, specifically in the forearm. If the person is infected with the bacteria, it is expected that between 48 and 72 hours, the health professional would see an induration in the site of injection.

If someone has a positive tuberculin test, then it would not be possible to administer INFLIXIMAB.

Opcion B. Incorrect. There is no description of diarrhea as an adverse event for using this medication. The adverse effects could be headache, stomach ache, cough or skin allergy. Also, for the suppression of part of the immune system, it is recommended to be aware of symptoms of infection as fever, sweats, muscle pain.

Opcion C. Incorrect. The usual dose of INFLIXIMAB in the treatment of Rheumatoid Arthritis for adults is, an inicial dose, then a second dose 2 weeks later; then, a third dose 4 weeks later, and finally one dose every 8 weeks.

Opcion D. Incorrect. The intranasal influenza vaccine is a "live attenuated" vaccine. If it is administered in a person using INFLIXIMAB, he/she could develop a severe infection by Influenza.

7 0

3 years ago