Answer:
Under normal circumstances, bronchoconstriction is caused by Parasympathetic nervous system and bronchodilation is caused by sympathetic nervous system
Explanation:
bronchoconstriction is simply a a tightening, narrowing or constriction of the of brochioles ( airlways) that increase in mucous secretion and it may occour due to coughing, sneezing or any other factors.while bronchodilaiton is the relaxation or the dilation of the bronchioles (airways in the lungs) that decrease of mucous secretion
An increase in parasympathetic activity causes BRONCHOCONSTRICTION, a decrease in parasympathetic activity causes BRONCHODILATION. There is no sympathetic innervation of the bronchiole smooth muscle!
The effect of the Smooth muscle contraction usually may cause bronchoconstriction to decline or decrease in the diameter of the bronchioles while the effect or the result of the smooth muscle relaxation may cause bronchodilation to increase in the diameter of the bronchioles. Therefore, Parasympathetic stimulation leads to bronchoconstriction and sympathetic stimulation leads to bronchodilation.
The answer is A. Linear Villages
Nucleated settlement is the term used by landscape historian to describe and classify settlements.
Among them are :
- Cluster Villages
- Grid village
- Plantation Village >>>>> all of these 3 are included in nucleated settlement
Answer:
Fossils are physical evidence of preexisting organisms, either plant or animal. Fossils of any kind are useful in "reading the rock record," meaning they help us decipher the history of the earth.Explanation:
The symptoms of <u>phobias </u>appear around age 10; <u>major depressive disorder </u>tends [s] to appear later, around age 25.
A phobia is an uncontrollable, irrational, persistent fear of a particular object, situation, or activity. This fear can be so overwhelming that a person goes to great lengths to avoid this source of fear. One reaction can be a panic attack, which is a sudden, intense fear lasting several minutes.
Phobias can be divided into specific phobias, social anxiety disorders, and agoraphobia. Specific phobias are further classified to include specific animals, natural environments, blood or injury, and specific situations. The most common are arachnophobia, snake phobia, and fear of heights. A specific phobia can be triggered by a negative experience of an object or situation in childhood. Social phobia is the fear of certain situations because you worry that others will judge you. Agoraphobia is the fear of the perceived difficulty or impossibility of escaping a situation.
Learn more about Phobias here: brainly.com/question/11464023
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