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Swallowing involves active transport of materials through muscular movement, not just gravity. From the tongue skeletal muscle to the smooth muscles of the pharynx and esophagus, the process of swallowing is controlled by the autonomic nervous system that uses a complex system of signals to push the food into the stomach.
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What happens if the air pressure in the throat and outside is less than the air pressure in your middle ear when you swallow?
if the aie pressure in the throat and outside the body is less than the air pressure in your middle ear when you swallow the air pressure in your middle ear reaches the same pressure as the air in your throat and outside , and the eardrum moves quickly back-or'pops' into place
Should a patient's tracheostomy be capped before they eat?
It depends on the patient's condition. In general, tracheostomy tubes are usually capped during meals to prevent food or liquid from entering the trachea, but this should be confirmed with the healthcare provider.
What unique feature do some reptiles possess that allows them to protect their eyes while still being able to see, such as the snake eyelids?
Some reptiles have a transparent scale called a spectacle that covers and protects their eyes while still allowing them to see, similar to snake eyelids.
If a man is castrated can he still have a erection?
Castration typically results in a decrease in testosterone levels, which can lead to erectile dysfunction. However, some individuals may still be able to achieve erections through other mechanisms such as psychological stimuli or residual hormone levels. Consultation with a healthcare provider is recommended for personalized information and guidance.
What factor has not been availablle to scientists and has kept them from being able to produce a living cell?
Scientists have not yet been able to produce a living cell from scratch because they have not been able to replicate the complex organization and self-replicating abilities of natural cells. The interplay between the various components within a living cell, as well as the precise regulation of cellular processes, is still not fully understood or replicable in synthetic systems.
What do astronuats wear?
This depends upon where the astronaut is. Inside the International Space Station, astronauts usually wear light, informal clothing. If the astronaut exits the station to do a space walk or other such mission, the astronaut will wear an air tight space suit, in order to be able to continue breathing.
How does an astronaut breathe in space?
The astronaut's space helmets allows them to breathe in space! It is connected to an air supply.An astronaut's space suit keeps him from harm from outer space objects!They live in an airtight environment (suit, ship, or station).
What should you be able to do to be an astronaut?
Being a test pilot and engineer were early qualifications, but now there are mission specialists from every scientific field. An astronaut has to be physically and mentally able to face the rigors of space flight, from G-forces of liftoff to the weightlessness of space. You must have a thorough understanding of your field of expertise, and be able to handle pressure. You would need to work well with others, because space exploration is a team effort.
Do you have to be an astronaut to be aboard the International Space Station?
Two ways of going to the International Space Station Would be to become a professional astronaut / cosmonaut or to be a space tourist (you need to be able to pay about 30 millions dollars and pass a multitude of physicals and the 6 to 8 month cosmonaut training is Russias Star City).
Can you swallow if you have no brain?
No. If you do not have a brain, you would not be alive, so you would not be able to swallow.
Why can't NASA send birds into space on the space shuttle?
Birds require gravity to swallow. Only insignificant amounts of gravity are experienced in outer space, so the birds would not be able to swallow and would therefore starve1. Citations: 1: NASA Canaries, Braingle - http://www.braingle.com/brainteasers/teaser.php?id=2828;op=0;comm=1
If theres something in my throat will i be able to swallow other foods?
If there is something stuck in your throat that is causing a blockage in the esophagus, you will not be able to swallow other foods.
What is solution of airless space?
An astronaut's space suit contains a tank of oxygen( like a diver ) that allows him/her to withstand the airlessness of space. the oxygen tank is located at his back and he is able to control it with the chest pack at the front of the suit. the chest pack also enables him to control the temperature inside his suit.
What are Astronaut helmets made of?
Astronaut helmets are typically made of a combination of materials such as polycarbonate, acrylic, and fiberglass. They are designed to be durable, lightweight, and able to withstand the extreme conditions of space, including temperature fluctuations and micrometeoroid impacts. The visor of the helmet is usually made of a special material to protect the astronaut's eyes from harmful ultraviolet radiation.
Are astronaut really brilliant?
To be able to compete against other astronaut candidates during the selection process, many astronauts have to be at the top of their respected fields.
What are sally ride's qualifications?
Sally Ride is best known for being the first American woman in space. An astronaut and physicist, she joined NASA in 1978, and in 1983 she entered orbit. Sally Ride died in July 2012 at the age of 61.
Can mountain lions swallow you whole?
Doubtfully. They can eat someone piece by piece, but cannot swallow one in a single bite.
