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Goose bumps are created when tiny muscles at the base of each hair, known as arrector pili muscles, contract and pull the hair straight up. The reflex is started by the sympathetic nervous system, which is responsible for many fight-or-flight responses. The muscle cells connected to the hair follicle have been visualized by actin ...
Each arrector pili is composed of a bundle of smooth muscle fibres which attach to several follicles (a follicular unit). [4] Each is innervated by the sympathetic division of the autonomic nervous system. [4]
The average difference between oral and axillary temperatures of Indian children aged 6–12 was found to be only 0.1 °C (standard deviation 0.2 °C), [51] and the mean difference in Maltese children aged 4–14 between oral and axillary temperature was 0.56 °C, while the mean difference between rectal and axillary temperature for children ...
A warning has been issued to travelers over the spread of three diseases, including the Marburg virus. It’s a close cousin of Ebola that’s been dubbed the “bleeding eye” virus due to one ...
Slappy is the main antagonist of the Goosebumps film adaptation, in which he is voiced by Jack Black, who also plays R.L. Stine and the Invisible Boy from My Best Friend Is Invisible, with Avery Lee Jones doing the puppetry of the character (Jones also did the voice of Slappy for promotional material for the film), assisted by Ironhead Studio's ...
We wish we would've known this with our puppy!
Every kid that's at least 2 years old needs a set of Play-Doh to get started with. This set of 10 comes with all the classic colors. Gift it all to one lucky kid or split the tubs among several ...
This releases hydrogen ions from hemoglobin, increases free H + concentration within RBCs, and shifts the equilibrium towards CO 2 and water formation from bicarbonate. The subsequent decrease in intracellular bicarbonate concentration reverses chloride-bicarbonate exchange: bicarbonate moves into the cell in exchange for chloride moving out.