Answer:
Lung disease is any problem in the lungs that prevents the lungs from working properly. There are three main types of lung disease:
Airway diseases -- These diseases affect the tubes (airways) that carry oxygen and other gases into and out of the lungs. They usually cause a narrowing or blockage of the airways. Airway diseases include asthma, COPD and bronchiectasis. People with airway diseases often say they feel as if they're "trying to breathe out through a straw."
Lung tissue diseases -- These diseases affect the structure of the lung tissue. Scarring or inflammation of the tissue makes the lungs unable to expand fully (restrictive lung disease). This makes it hard for the lungs to take in oxygen and release carbon dioxide. People with this type of lung disorder often say they feel as if they are "wearing a too-tight sweater or vest." As a result, they can't breathe deeply. Pulmonary fibrosis and sarcoidosis are examples of lung tissue disease.
Lung circulation diseases -- These diseases affect the blood vessels in the lungs. They are caused by clotting, scarring, or inflammation of the blood vessels. They affect the ability of the lungs to take up oxygen and release carbon dioxide. These diseases may also affect heart function. An example of a lung circulation disease is pulmonary hypertension. People with these conditions often feel very short of breath when they exert themselves.
Explanation:
Put it your own words cause this is kinda advance for 7th
Answer:
Having the same relation
Explanation:
relative position, or structure
Answer;
Light microscope
Explanation;
A light microscope uses focused light and lenses to magnify a specimen, usually a cell.
Light microscopes may be simple microscopes or compound microscopes.
Simple microscopes uses a single lens to magnify an object and cannot reach high magnification.
Compound light microscopes use two sets of lenses that is; an objective lens and an eyepiece, to produce images.
The correct answer is sympathetic.
Along with the enteric and the parasympathetic nervous systems, it completes the autonomic nervous system of humans. This part of the brain is responsible for 'fight or flight' situations, meaning that if a stressor influences us, the sympathetic nervous system will decide what our course of action is going to be.
Answer:
One of Schwann and Schleiden’s ideas was that <em>cells were originated by spontaneous generation</em>, which was later rejected by Virchow.
Explanation:
Schwann studied animal tissues, and by observing them, he concluded that tissues were made of cells.
Simultaneously, Schleiden arrives at the same conclusion when studying vegetable tissues.
Around 1830, they met and together proposed the first cell theory. The theory stated that:
- Every living being is made of cells.
- Cell is the basic unit of life.
- Cells are originated by spontaneous generation.
Virchow, who studied human tissues, during his observations sow the cell in its dividing process. He then proposed that <u>cells were not originated from spontaneous generation</u>, but they were the product of other pre-existing cells and were originated by <u>cellular division</u>. He rejected the third state of Schwann and Schleiden’s ideas.
