what did you mean tag

1. Filters and cleans air to remove germs and allergens. Gives you a sense of smell. Warms and moistens air so it can move comfortably into your respiratory system.

2. Some common problems of the respiratory system include: asthma – wheezing and breathlessness caused by a narrowing of the airways. bronchitis – inflammation of the lung's larger airways. emphysema – disease of the alveoli (air sacs) of the lungs.

3. Each of your lungs contains about 300 million balloon-like structures called alveoli, which replace the carbon-dioxide waste in your blood with oxygen. When these structures are filled with air, the lungs become the only organs in the human body that can float on water.

4. the lungs

   Respiration is the uptake of oxygen and the removal of carbon dioxide from the body. This job is performed by the lungs.

1. Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by vertebrae , a set of ring-shaped bones. They're both cushioned by layers of membranes (called meninges) and cerebrospinal fluid.

2. The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body.

3. The nervous system helps all the parts of the body to communicate with each other.

4. You have 12 cranial nerve pairs. Each nerve pair splits to serve the two sides of your brain and body. For example, you have one pair of olfactory nerves.

5. Neurons are specialized to transmit information throughout the body. Whereas nerve is a whitish fibre or bundle of fibres in the body made up of number of neuron cells that transmits impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs.

1. Your heart is at the center of your circulatory system. This system is a network of blood vessels, such as arteries, veins, and capillaries, that carries blood to and from all areas of your body.

2. High blood pressure, also known as hypertension, can increase your risk of cardiovascular disease. It is the most common health problem of the circulatory system.

3. The right side of your heart collects blood on its return from the rest of your body. The blood entering the right side of your heart is low in oxygen.

4. Conditions that reduce your blood flow can give you bad circulation, such as: Smoking: Chemicals damage your blood vessels, putting you at a higher risk of atherosclerosis. High blood pressure: When your blood is pushing against your blood vessel walls with a lot of force, it can weaken them.

5. Increase cardiovascular exercise. ...

   If you smoke, quit. ...

   Drink black or green tea. ...

   If you are anemic, take iron supplements or eat iron-rich food. ...

   Dry brush your body. ...

   Decrease stress. ...

   Include more omega-3 fatty acids in your diet. ...

   Wear compression socks and elevate your legs.

6. Painful cramps. ...

   Numbness, weakness and swelling. ...

   Varicose veins. ...

   Exhaustion and feeling cold. ...

   Poor cognitive function. ...

   Weak immune system. ...

   Hair loss and weak nails. ...

   Disrupted bowel movements.

   
   

1. The small intestine

   The small intestine carries out most of the digestive process, absorbing almost all of the nutrients you get from foods into your bloodstream. The walls of the small intestine make digestive juices, or enzymes, that work together with enzymes from the liver and pancreas to do this.

2. Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move.

3. Your liver makes a digestive juice called bile that helps digest fats and some vitamins. Bile ducts carry bile from your liver to your gallbladder for storage, or to the small intestine for use.

4. Wash your hands in warm, soapy water and dry them well before preparing food. Wet hands are more likely to transmit bacteria so take the time to dry them thoroughly. Don't use the same cutting board for raw food that will be cooked (such as meat) and foods served uncooked (such as salads).

5. Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates.

6. According to Mitchell and others (1945), the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%. Each day humans must consume a certain amount of water to survive.

7. Proteins are digested in the stomach and duodenum of the small intestine. The main enzymes that catalyze protein digestion are pepsin secreted in the stomach and trypsin, chymotrypsin, and carboxypeptidase secreted from the pancreas.