Fluid filled sacs that work as cushion between bones, muscles and tendons specially in joints are called as bursae. Inflammation of bursae leads to bursitis which is caused by overuse, injury or an infection which decreases the lubrication in the joints, for example: tennis elbow.

Rest often heals bursitis so unnecessary movement should be avoided. Pads and cushions can also be used to protect the affected body part and reduce the pressure. Warming up and cooling down is also suggested before and after a physical activity respectively as they reduce the strain on joints and can prevent bursitis. Drinking water however has no direct affect on the condition.

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2 years ago

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What occurs when the bronchioles end in tiny air sacs called alveoli? will TRY to mark brainliest correct answer only!!

olga55 [171]

Answer:

The smallest bronchioles end in tiny air sacs, called alveoli. They inflate when a person inhales and deflate when a person exhales. During gas exchange oxygen moves from the lungs to the bloodstream.

Explanation:

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2 years ago

Match the vocabulary term to the correct definition. 1. the complete set of hereditary instructions contained in the DNA chromos

tresset_1 [31]

Answer:

The complete DNA instruction book, or genome, for a human contains about 3 billion bases and about 20,000 genes on 23 pairs of chromosomes
Because carbon atoms can form stable bonds with four other atoms, they are uniquely suited for the construction of complex molecules. These complex molecules are typically made up of chains and rings that contain hydrogen, oxygen, and nitrogen atoms, as well as carbon atoms.
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
The gene is the basic physical and functional unit of heredity. It consists of a specific sequence of nucleotides at a given position on a given chromosome that codes for a specific protein (or, in some cases, an RNA molecule).

Explanation:

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2 years ago