1.
What is the primary function of the respiratory system?
Correct Answer
A. Supply oxygen to the body and remove carbon dioxide
Explanation
The respiratory system is a group of organs and tissues that work together to help us breathe. The primary function of the respiratory system is to supply the blood with oxygen so the blood can deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe, we inhale oxygen and exhale carbon dioxide. This exchange of gases is the respiratory system’s means of getting oxygen to the blood. Oxygen in the blood is essential for our bodies to function.
2.
Which of the following is a side effect of the cholinergic drug pilocarpine?
Correct Answer
B. Excessive salivation
Explanation
Pilocarpine is a cholinergic drug, which means it mimics the action of acetylcholine, a neurotransmitter that transmits signals in the nervous system. When pilocarpine binds to cholinergic receptors, it stimulates the parasympathetic nervous system, which is responsible for rest and digest activities. This can lead to side effects such as excessive salivation, sweating, urinary frequency, and bradycardia (slow heart rate).
3.
What is the role of insulin in the human body?
Correct Answer
A. Facilitate the uptake of glucose into cells
Explanation
Insulin is a hormone produced by the pancreas that plays a crucial role in regulating blood glucose levels. It allows cells in the body to take in glucose from the bloodstream. The cells can then use this glucose as a form of energy or store it for later use. Insulin also signals the liver to store glucose, which decreases the amount of glucose in the blood. Without insulin, cells would not be able to take in glucose, leading to high blood sugar levels.
4.
Which neurotransmitter is primarily involved in wakefulness and arousal?
Correct Answer
B. NorepinepHrine
Explanation
The given answer "SSI" refers to Surgical Site Infections. The Zocef clinical evidence issue 1 for General Surgeons provides updates and information regarding SSI. This could include new research findings, treatment guidelines, prevention strategies, or any other relevant information related to surgical site infections that would be valuable for general surgeons.
5.
What is the mechanism of action of beta blockers?
Correct Answer
D. They block the action of epinepHrine and norepinepHrine on beta receptors
Explanation
Beta blockers, also known as beta-adrenergic blocking agents, are a class of drugs that are primarily used to manage abnormal heart rhythms, and to protect the heart from a second heart attack (myocardial infarction) after a first heart attack (secondary prevention). They work by blocking the action of certain hormones like adrenaline (epinephrine) on the heart and blood vessels. This slows down the heart rate and reduces the force of heart muscle contraction, lowering blood pressure.
6.
What is the primary function of the circulatory system?
Correct Answer
B. Transport of oxygen, nutrients, and hormones to cells
Explanation
The circulatory system, also known as the cardiovascular system, is an organ system that allows blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
7.
Which of the following is a common side effect of opioid analgesics?
Correct Answer
D. Constipation
Explanation
Opioid analgesics are a class of drugs that are used for their analgesic (pain-relieving) effect. They work by binding to opioid receptors in the brain and spinal cord, inhibiting the transmission of pain signals. However, opioids also slow down the activity of the gut, leading to constipation, one of the most common side effects of these drugs.
8.
What is the role of glucagon in the human body?
Correct Answer
B. It increases the level of glucose in the blood.
Explanation
Glucagon is a hormone that works with other hormones and bodily functions to control glucose levels in the blood. It’s made in the alpha cells of the pancreas, which are the cells that are next to the beta cells that make insulin. When blood sugar levels go too low, the level of insulin declines and other cells in the pancreas release glucagon.
9.
Which neurotransmitter is primarily involved in mood, appetite, and sleep?
Correct Answer
A. Serotonin
Explanation
Lipase is the correct answer because it is an enzyme that helps in the breakdown of lipids or fats. In the case of Uprise D3, lipase would be responsible for converting the large emulsion droplets into mixed micelles, which are smaller structures that allow for better absorption of the fat-soluble vitamin D3. Lipase achieves this by breaking down the triglycerides present in the emulsion droplets into smaller fatty acids and glycerol molecules, which can then form mixed micelles.
10.
What is the mechanism of action of ACE inhibitors?
Correct Answer
B. They inhibit the conversion of angiotensin I to angiotensin II.
Explanation
ACE inhibitors, or angiotensin-converting enzyme inhibitors, are a type of medication that is used primarily in the treatment of high blood pressure and heart failure. They work by blocking the action of an enzyme in the body called angiotensin-converting enzyme (ACE). This enzyme is involved in producing a hormone called angiotensin II, which causes blood vessels to narrow and releases another hormone called aldosterone, which increases the amount of fluid the body retains. By inhibiting the action of ACE, these drugs decrease the production of angiotensin II and aldosterone, helping to relax and widen blood vessels and reduce the amount of fluid the body retains. This lowers blood pressure and reduces the strain on the heart.