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".
Evolution is stupid. it isnt accurate.
i have looked every where apparently not i guess there isnt a anatomy jane doll!!
No, sutures are where two bones more or less fuse together into one bone.
Advantages: Being Able to hear Disadvantages: Being Deaf, Having an ear infection isnt it obvious?
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.
Isnt it your ear?..im not sure..sorry
It isnt. There is no gas exchange in the trachea this takes place at the alveoli.
The best dancer in iconic boyz is defidently Jason! He isnt called no bones for nothing!
There isnt a release date yet but filming for the movie will start on August 15 in Toronto
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.
Many bones are not associated with the foot. The mandible, the clavicle and the sternum are just three.
Sorry no there isnt. Sorry no there isnt.
no it isnt ok isnt ok isnt ok dadyyouve been stuck by a food criminal
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.).
no it isnt but it isnt the teachers choice
no there isnt that mite be a fib or a legent but there isnt
Isnt it indian??? Isnt it indian???