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marissa [1.9K]
3 years ago
14

The chief pathologic features of osteoarthritis are a. autoimmune damage to the synovium, destruction of articular cartilage by

pannus, and thickening of synovial fluid. b. thinning of the joint capsule, resorption of bone, excessive formation of new bone, and formation of bone spurs. c. degeneration of articular cartilage, destruction of the bone under the cartilage, and thickening of the synovium. d. stress fractures of the epiphysis, inflammation of the diaphysis, and accumulation of excessive synovial fluid.
Biology
1 answer:
olganol [36]3 years ago
8 0

Answer:

Option (C).

Explanation:

Osteoarthritis may be defined as the one of the most common form of arthritis  that affects the joints of knees and hands. The symptoms of arthritis are stiffness, pain and loss of flexibility.

The articular cartilage get degenerated, thickening of synovium and the breakage of bone under the cartilage. Maintenance of healthy weight and proper treatment can reduce the risk of disease.

Thus, the correct answer is option (C).

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Answer:

B

Explanation:

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3 years ago
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This disease leads to death by weakening the immune system of the human body.  Common symptoms are related to the nervous system like dementia, anxiety, depression and insomnia.

TESTS

The tests for AIDS are discussed below.

The most common test for any disease is the blood test.  

When human body is infected with the virus, the body produces anti-bodies to combat this infection. The blood test is positive if these anti-bodies are present in the blood sample of the infection person. However, it takes time for these anti-bodies to appear in the blood stream, hence, blood test should be done at regular intervals.

The tests specifically developed for AIDS are as follow.

ELISA or Enzyme-linked immunosorbent assay

If this test is positive, this is followed by a Western Blot test. The blot test is done in order to confirm the disease.

As said before, anti bodies take time to develop. If the test is done during this phase, it will be negative despite of the presence of virus in the blood stream.

HOME

Only one home test is approved. This is called Home Access Express Test. The kit of this home test is available at pharmacies.

SALIVA

The saliva from the patient’s cheek is obtained on a cotton pad. This pad is put in a vial which is then sent to the lab for testing.  If the result is positive, blood test is done to confirm the disease.

VIRAL LOAD

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WESTERN BLOT

This test is done when the result of ELSA test is positive. This test confirms the disease.

All the above test if turn out negative and the patient still doesn’t recovers, this testing should be done periodically until the disease is confirmed.

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Answer:

The human impact on the Amazon rainforest has been grossly underestimated according to an international team of researchers. They found that selective logging and surface wildfires can result in an annual loss of 54 billion tons of carbon from the Brazilian Amazon, increasing greenhouse gas emissions.

Explanation:

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Answer:

Atoms of different elements can combine to make new substances. A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound.

Explanation:

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