Heart And Nervous System Quiz! Test

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1. The heart has 4 Layers and 3 champers.

Explanation

The statement is incorrect. The heart actually has 3 layers, not 4. These layers are the epicardium, myocardium, and endocardium. Additionally, the heart has 4 chambers, not 3. These chambers are the left and right atria, and the left and right ventricles. Therefore, the correct answer is False.

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About This Quiz
Heart And Nervous System Quiz! Test - Quiz

The 'Heart and Nervous System Quiz! Test' assesses knowledge on heart functions, including pulse rate, heart chambers, and blood circulation. It tests understanding of systole and stroke volume,... see morecrucial for students and professionals in biology and health-related fields. see less

2. Measures of Heart Function done by: 

Explanation

The measures of heart function include beats or pulse, BP systolic and diastolic, and ECG. These measures provide information about the heart's rhythm, rate, and electrical activity. By monitoring these indicators, healthcare professionals can assess the overall health and functioning of the heart. Therefore, the correct answer is "All of the above."

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3. The Results in restriction of blood flow: 

Explanation

All of the listed conditions, myocardial infarction, cerebrovascular incident, and peripheral vascular disease, can result in a restriction of blood flow. Myocardial infarction refers to the blockage of blood flow to the heart muscle, leading to heart tissue damage. Cerebrovascular incident, commonly known as a stroke, occurs when blood flow to the brain is interrupted, causing brain cell damage. Peripheral vascular disease involves the narrowing or blockage of blood vessels outside the heart and brain, leading to reduced blood flow to the limbs. Therefore, all three conditions can cause a restriction of blood flow.

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4. Oleic acid can lower LDL cholesterol.

Explanation

Oleic acid is a monounsaturated fatty acid found in various foods, such as olive oil and avocados. Research has shown that consuming oleic acid can help lower LDL cholesterol levels. LDL cholesterol is often referred to as "bad" cholesterol because high levels can increase the risk of heart disease. By incorporating foods rich in oleic acid into the diet, individuals can potentially reduce their LDL cholesterol levels and promote heart health.

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5. Ischemic heart disease is:

Explanation

Ischemic heart disease refers to a condition where there is inadequate blood supply to the heart. This occurs when the arteries that supply blood to the heart become narrowed or blocked, usually due to a buildup of plaque. The reduced blood flow can lead to chest pain (angina), heart attack, or other complications. Overhydration of the heart and dehydration are not related to ischemic heart disease. Therefore, the correct answer is inadequate blood supply to the heart.

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6. The more blood pumped from the heart per minute :

Explanation

When more blood is pumped from the heart per minute, it increases the volume of blood circulating in the arteries. This leads to an increase in blood pressure because the arteries have to accommodate the higher volume of blood being pumped. Higher blood pressure can be a result of various factors, including increased cardiac output or constriction of blood vessels.

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7. Impairment of the ventricles' capacity to eject or fill with blood is :

Explanation

Heart failure is the correct answer because it refers to the impairment of the ventricles' capacity to eject or fill with blood. This condition occurs when the heart is unable to pump enough blood to meet the body's needs. It can be caused by various factors, such as damage to the heart muscle from a heart attack (MI), high blood pressure, or certain diseases. Heart failure can lead to symptoms like shortness of breath, fatigue, and fluid retention. Treatment options include medications, lifestyle changes, and sometimes surgery.

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8. The upper chambers receive oxygen-depleted blood coming back from the body and the lower chambers pump oxygen-rich blood back out to the body.

Explanation

The explanation for the correct answer is that the upper chambers of the heart, known as the atria, receive blood that is low in oxygen and high in carbon dioxide, which has been circulated throughout the body. The blood then flows into the lower chambers, called the ventricles, which pump the oxygen-rich blood out to the body through the arteries. This process ensures that oxygen is delivered to the body's tissues and organs, while carbon dioxide is removed. Therefore, the statement is true.

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9. The pulse is: 

Explanation

The pulse is the measure of how many times your heart beats per minute. It is not related to the completion of the heart filling with blood and pumping it out, nor does it directly affect cardiac output and heart rate. The pulse rate can be used as an indicator of overall health and fitness, and it can provide information about heart rate variability and rhythm.

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10. Systole is :

Explanation

Systole refers to the contraction of the heart muscles, specifically the ventricles, during which blood is pumped out of the heart and into the arteries. This phase is followed by diastole, which is the relaxation of the heart muscles. Therefore, the correct answer is "contraction".

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11. All of the following are medications for Hypertension Except :

Explanation

Panadol Extra is not a medication for Hypertension. It is an over-the-counter pain reliever that contains paracetamol and caffeine. Hypertension is a condition characterized by high blood pressure, and medications commonly used to treat it include beta blockers, diuretics, and ACE inhibitors. Panadol Extra does not have any direct effect on blood pressure and is not indicated for the treatment of hypertension.

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12. All of the following are nutrition recommendations for atherosclerosis Except 

Explanation

The correct answer is "Increase Saturated fat." Atherosclerosis is a condition characterized by the buildup of plaque in the arteries, which can lead to heart disease and stroke. To reduce the risk of atherosclerosis, it is recommended to decrease the intake of saturated fat, as it can raise cholesterol levels and contribute to plaque formation. Increasing intake of polyunsaturated fats (PUFA) and monounsaturated fats (MUFA) is beneficial for heart health as they can help lower cholesterol levels. Decreasing cholesterol intake is also important in managing atherosclerosis.

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13. Supplies blood to head is:

Explanation

The correct answer is "Cerebral" because the brain, which is located in the head, receives its blood supply from the cerebral arteries. These arteries deliver oxygen and nutrients to the brain cells, ensuring their proper functioning. Therefore, the cerebral arteries are responsible for supplying blood to the head.

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14. The compensatory mechanisms are activated by specialized cells that act as sensors are called:

Explanation

Baroreceptors are specialized cells that act as sensors and are responsible for activating compensatory mechanisms in the body. These receptors detect changes in blood pressure and send signals to the brain to initiate appropriate responses. They play a crucial role in maintaining homeostasis by regulating blood pressure and heart rate. Therefore, baroreceptors are the correct answer for the question.

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15. The volume of blood ejected with each contraction of LV 

Explanation

Stroke volume refers to the volume of blood that is ejected with each contraction of the left ventricle (LV). It is an important measure of the heart's efficiency in pumping blood. The stroke volume is determined by factors such as the strength of the heart's contraction, the size of the ventricle, and the resistance in the arteries. It is typically measured in milliliters per beat and can be used to calculate cardiac output, which is the total volume of blood pumped by the heart in one minute.

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16. Atherosclerosis may progress to: 

Explanation

Atherosclerosis is a condition characterized by the buildup of plaque in the arteries, leading to narrowing and hardening of the blood vessels. This can restrict blood flow to the heart, causing ischemia (reduced blood supply) and potentially leading to ischemic heart disease. Ischemic heart disease refers to a group of heart conditions caused by reduced blood flow to the heart muscle, including angina and heart attacks. Therefore, it is a possible progression of atherosclerosis.

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17. With sympathetic nervous responses: 

Explanation

With sympathetic nervous responses, various physiological changes occur in the body. This includes the dilation of bronchial tubes in the lungs and pupils in the eyes, which allows for increased air intake and improved vision. Additionally, there is an increase in the heart rate and constriction of the heart, which helps pump more blood to the muscles and organs. Finally, the sympathetic nervous system triggers the release of adrenaline from the adrenal gland, which further enhances the body's response to stress or danger. Therefore, all of the given options are correct as they represent the different effects of sympathetic nervous responses.

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18. The parasympathetic nervous system:

Explanation

The parasympathetic nervous system is responsible for regulating various bodily functions during rest and relaxation. One of its effects is the constriction of bronchial tubes in the lungs, which helps to reduce the air flow and maintain a calm state. Similarly, the parasympathetic system constricts the pupils in the eyes, which helps to limit the amount of light entering the eyes and aids in focusing on nearby objects. These responses are part of the parasympathetic system's role in conserving energy and promoting restful states.

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19. The parasympathetic nervous system has:

Explanation

The parasympathetic nervous system is responsible for the rest and digest function. This means that it promotes relaxation, slows down heart rate, and increases digestion and nutrient absorption. It is the opposite of the sympathetic nervous system, which triggers the fight or flight response. Therefore, the correct answer is rest and digest function.

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20. Defined as systolic blood pressure above 120 mm Hg and/or diastolic blood pressure above 80 mm Hg.

Explanation

The statement is false because the given definition of high blood pressure is incorrect. High blood pressure is defined as systolic blood pressure above 130 mm Hg and/or diastolic blood pressure above 80 mm Hg. Therefore, the correct answer is false.

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The heart has 4 Layers and 3 champers.
Measures of Heart Function done by: 
The Results in restriction of blood flow: 
Oleic acid can lower LDL cholesterol.
Ischemic heart disease is:
The more blood pumped from the heart per minute :
Impairment of the ventricles' capacity to eject or fill with blood is...
The upper chambers receive oxygen-depleted blood coming back from the...
The pulse is: 
Systole is :
All of the following are medications for Hypertension Except :
All of the following are nutrition recommendations...
Supplies blood to head is:
The compensatory mechanisms are activated by specialized cells that...
The volume of blood ejected with each contraction of LV 
Atherosclerosis may progress to: 
With sympathetic nervous responses: 
The parasympathetic nervous system:
The parasympathetic nervous system has:
Defined as systolic blood pressure above 120 mm Hg and/or diastolic...
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