Answer:
The correct answer is A
Explanation:
The right atrium receives blood from the upper vena cava and the inferior vena cava, the left atrium, receives blood from the pulmonary veins. The right ventricle drives blood to the pulmonary artery, and the left ventricle drives the aorta
The question is incomplete. The complete question is as follows:
A treatment for bacterial infections from the early 20th century has made a comeback-the use of bacterial viruses to eliminate bacterial infections. Which explanation most accurately describes this mechanism of action behind this treatment?
A. A wide variety of bacteria cause a large percentage of human infections, producing much sickness and death.
B. Viruses can infect bacteria, transferring pathogenic genes. The viral genes can then be suppressed, causing the bacteria to not replicate viruses.
C.The attachment structures on the virus and the receptors on the host cells make for exquisite specificity of viruses for particular bacterial species.
D. Antibiotic resistance in humans is on the increase, so using a different kind of therapy is more beneficial.
Answer:
Option (C) and (D).
Explanation:
The pathogens are the organisms that can cause harm to the living organisms. Various strategies and drugs has been research to kill these pathogens
The viruses can also be used to treat the bacterial and viral infections. This methodology was used in the early 20th century but has come back because the antibiotics that are given makes the bacteria resistance against the particular treatment. The virus and bacteria has some specific and unique receptors that provide specificity of the virus against the bacteria and can be used for the treatment.
Thus, the correct answer is option (C) and (D).
Answer:
The answer is E: A, B And C are correct.
Explanation:
The external nasal nose, in addition to its support function, presents others such as detecting odors, either from food or toxic substances; It has valves that initially clean the air entering the lungs, in addition to heating it, Also contributes to speech vibrations.
Answer: the nurse will refer this child to a specialist for a bone marrow biopsy.
Explanation:
From the symptoms which where observed by the primary health care provider, the child had recurrent fevers, bone pain, and a recent loss of weight. While the physical examination revealed scattered petechiae, lymphadenopathy, and bruising. On further Laboratory diagnosis of the blood film, the full blood count revealed:
--> thrombocytopenia ( low platelet level)
--> anemia( lack of red blood cells) and
--> an elevated white blood cell count.
The major importance of full blood count is to evaluate the general health and detect a variety of of disorders. Since the blood picture is not normal, the health care provider should refer the child for BONE MARROW BIOPSY.
This is because the blood cells are produced from the bone marrow. Bone marrow biopsy is a test done to show if the bone marrow is healthy and able to make normal amount of blood cells.
The results of the bone marrow biopsy will help the primary care nurse to determine the cause of the abnormalities seen in the blood picture and will give the best directions to follow for an appropriate diagnosis and treatment.
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