Smooth muscles are found on the walls of alimentary canal, blood vessels and tubular visceral organs e.g., urino-genital system and respiratory tract. The cells that make up the smooth muscles are spindle-shaped each with a single nucleus that is centrally located.
They contain myofibrils enclosed by a plasma membrane. They are capable of slow involuntary contractions. Observed under the microscope, the cells lack cross striations hence referred to as unstriated muscle. They contract and fatigue slowly.
Water also can move freely across the cell membrane of all cells, either through protein channels or by slipping between the lipid tails of the membrane itself. Osmosis is the diffusion of water through a semipermeable membrane
Preserving and protecting individual species and the ecosystems they inhabit are critical to maintaining biodiversity on Earth. information about the biodiversity of insects. ... This helps scientists learn more about the life cycle of these insects.
5. The best way to determine how strain accumulates in a fault is with GPS measurements of plate motion. As ground on each side of a fault moves, the potential energy that accumulates in the fault can be estimated and used to forecast the rough timing, magnitude, and location of an earthquake.
