Answer:
Alzheimers is a disease that affects the main, it starts out gradually and causes memory loss, issues with speech, affects the ability to think clearly and affects the way a person moves.
Explanaton:
Answer:
Sleep debt
Explanation:
Sleep debt is the name given to the difference between the amount of sleep the human body needs to rest and the amount of sleep individuals can get from day to day commitments. It can also be defined as the difference between the amount of sleep achieved and the amount needed to keep vigil alert during the day when the amount reached is less than the amount needed.
Decreased sleep for various reasons creates a kind of debt to the body that can hardly be paid. This debt alters the body by weakening the immune system, inducing the person to have diabetes, morbid obesity, heart disease, memory impairment, poor concentration, vision problems, and sleep that never goes away. Such manifestations resulting from sleep debt may occur in the short and long term, depending on the individual's rhythm of life and the debt they have with the body. As this debt increases, so do the signals.
The answer is C.
Because if it is not Medical Science then C is the answer you are looking for
Answer:
A. epinephrine
Explanation:
Bronchial constriction usually involves the tightening of the smooth muscles which surrounds the tube-like bronchial airways. This occurs via extra mucus production, spasming of smooth muscles, or swelling/inflammation of layers within bronchi or bronchioles. Bronchial constriction typically results in symptoms of wheezing, coughing and shortness of breath.
This can be treated via the use of the hormone epinephrine, a bronchiodilator. For some cases like asthma, epinephrine in small aerosolized (inhaled) doses can lead to the <em>temporary</em> relief of symptoms. Epinephrine acts by making bronchial tubes wider to allow the passage of air.
In the body, smooth muscle cells in the veins, arteries and heart are under the control of epinephrine receptors called β2 receptors. Epinephrine binding to the receptor triggers a cell signalling cascade that activates β2 receptors to dilate smooth muscle in the lungs.
Here's how-
- Calcium is essential to mediating muscle cell signalling and thus contraction
- in the lungs, epinepherine-β2 receptor binding leads to enzyme activation (adenylyl cyclase)
- conversion of the energy molecule ATP to the secondary messenger molecule cyclic AMP.
- cAMP inhibits the activity of the enzyme <em>myosin light chain kinase </em>(MLCK) in smooth muscle
- ∴ the enzyme remains inactive and the muscles relax
<em>Summary:</em><em> epinephrine → muscle relaxation →</em><em> bronchial dilation (reduced diameter) </em><em>→ decreased respiratory distress → easier breathing.</em>
