Answer:
The chemical receptors of cells have been defined as molecular structures to which other molecules considered as chemical messengers (neurotransmitters, hormones and other neuroactive molecules) specifically bind.
Chemical receptors can be located on the plasma membrane into which they insert by crossing it. Membrane domains have been defined for them and also on both sides of the membrane. The one on the external side corresponds to the binding site for messengers that come from other cells, a situation that defines the so-called heteroreceptors. If messengers coming from the cell itself join that site, the so-called autoreceptors are defined.
But chemical receptors can also be located inside cells. They are intracellular receptors and are found in the cytoplasm or in the nucleus. Messages act on them, which due to their chemical nature can cross the plasma membrane, such as steroidal hormones, thyroid hormones and neurosteroids
Explanation:
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The anterior fontanel is a diamond-shaped area where the frontal and parietal bones meet. It closes between 12 and 18 months of age. Vigorous crying may cause the fontanel to bulge, which is a normal finding. A nurse is performing an assessment on a postterm infant.
<h3>What is anterior fontanel?</h3>
- This is the junction where the 2 frontal and 2 parietal bones meet. The anterior fontanelle stays soft until about 18 months to 2 years of age. Doctors can consider if there is increased intracranial pressure by touching the anterior fontanelle.
- The fontanel can broaden in the first few months of life,18 and the median age of closure is 13.8 months. By three months of age, the anterior fontanel is secured in 1 percent of infants; by 12 months, it is closed in 38 percent; and by 24 months, it is closed in 96 percent.
- The fontanelle allows the skull to distort during birth to facilitate its passage through the birth canal and for expansion of the brain after birth. Skull at birth, showing frontal and occipital fonticuli. The anterior fontanelle normally closes between the periods of 12 and 18 months.
To learn more about anterior fontanel, refer to:
brainly.com/question/1538272
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The answer to this would be. Depression!!!
Answer:
Explanation:
Friction is the force needed to stop an object in motion
