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Because ultrasound works by passing sound waves through tissue and measuring their return by deflection on a surface back to the ultrasound probe. Bone is a high density material, so reflects a high fraction of the sound waves back to the probe, making it difficult to measure different density. The lungs are filled with air, which a low density material, so the sound waves pass through the lung, and a small fraction are deflected, which makes visualising tissue very hard.
This answer is now in the museum of history of medicine. Ultrasound is very useful for lung examination in patients. It is now possible to quickly examine a patient for pulmonary edema, pneumothorax, pleural effusion, ARDS and many other diseases. Please go to Google and search for "Lessnau".
What else can I help you with?
Is suture a synovial joint?
No, a suture is not a synovial joint. Sutures are fibrous joints found in the bones of the skull and are immovable, serving to hold the bones together. Synovial joints are movable joints found in the body, characterized by the presence of a synovial capsule and fluid.
What is cell division called in Somatic Cells called?
Somatic cells are the cells that form the body like skin, blood and bones. These type of cells go through the cell division process called mitosis. Gametes, or germline cells, like sperm and ova go a different cell division process called meiosis.
Where can you buy the Anatomy Jane doll?
The Anatomy Jane doll can be purchased on the manufacturer's website, specialty toy stores, or online retailers such as Amazon or eBay. It is important to ensure that you are purchasing from a reputable source to ensure the authenticity of the product.
What is the Only floating bone in the body?
The only floating bone in the human body is the hyoid. It is a U-shaped bone about 2 inches long, running parallel to the ground, and covers the voicebox, being held in place by three sets of muscles, the tongue muscles.
How many chromosomes are there in the female nucleus of a pineapple pollen grain?
There are 50 chromosomes in both male and female pineapple pollen grain.
What part of the human body has 9 bones?
Isnt it your ear?..im not sure..sorry
How is the trachea adapted for gas exchange in lungs?
It isnt. There is no gas exchange in the trachea this takes place at the alveoli.
When is city of bones hitting theaters?
There isnt a release date yet but filming for the movie will start on August 15 in Toronto
Who is the best dancer in iconic boyz?
The best dancer in iconic boyz is defidently Jason! He isnt called no bones for nothing!
What can go wrong if melanocyte isnt working?
Melanocytes have absolutely nothing to do with your lungs. Melanocytes determine skin pigmentation. If they stop working your skin essentially gets lighter or white in the areas where the cells die or stop working.
What leg bone is not a weight bearing bone?
Many bones are not associated with the foot. The mandible, the clavicle and the sternum are just three.
How do you do glitches on wee world?
Sorry no there isnt. Sorry no there isnt.
What are the lyrics to food criminal?
no it isnt ok isnt ok isnt ok dadyyouve been stuck by a food criminal
Where does mundian tu bach ke come from?
Isnt it indian??? Isnt it indian???
Is it illegal for a teacher to tell a student not to have facebook?
no it isnt but it isnt the teachers choice
Is there an I don't like food disease?
no there isnt that mite be a fib or a legent but there isnt
Why is low blood calcium level dangerous?
It isnt. Low caluium is good. you will be able to snap all your bones, therefore becoming gelanonus. you will be able to get anywhere ( if you live and provided someone pushes your wheelchair out of the hospial.).
