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Space medicine is a developing medical practice that studies the health of astronauts living in outer space. The main purpose of this academic pursuit is to discover how well and for how long people can survive the extreme conditions in space, and how fast they can re-adapt to the Earth's environment after returning from space.
The cells in the human body are not outnumbered 10 to 1 by microorganisms. The 10 to 1 ratio was an estimate made in 1972; current estimates put the ratio at either 3 to 1 or 1.3 to 1. [301] The total length of capillaries in the human body is not 100,000 km.
Seat maps usually indicate the basic seating layout; the numbering and lettering of the seats; and the locations of the emergency exits, lavatories, galleys, bulkheads and wings. Airlines that allow internet check-in frequently present a seat map indicating free and occupied seats to the passenger so that they select their seat from it.
[1] The method attempts to eliminate the buffers that slow down plane boarding, [2] while simultaneously optimising speed and efficiency. The method has been criticised for its lack of human headway, as it would separate those boarding in groups, require a perfectly organised line, as well as uniform stowing and seating time.
Cognitive biology is an emerging science that regards natural cognition as a biological function. [1] It is based on the theoretical assumption that every organism —whether a single cell or multicellular —is continually engaged in systematic acts of cognition coupled with intentional behaviors, i.e., a sensory-motor coupling . [ 2 ]
Research shows that window seats are more isolated and are furthest away from the aisle, where passengers and crew often walk by and can more easily spread germs. Of course, if you really want to ...
A decussation (from Latin decussis 'ten', written as a capital X) refers to nerve fibers that cross the sagittal plane from one side of the central nervous system to the other, and connect different brain regions. There are two kinds: Type 1 crosses the sagittal plane in the same brain
Like the vertebrate spinal cord, the function of the ventral nerve cord is to integrate and transmit nerve signals. It contains ascending and descending neurons that relay information to and from the brain, motor neurons that project into the body and synapse onto muscles, axons from sensory neurons that receive information from the body and environment, and interneurons that coordinate ...