mark the true and false statements
a. SAN generates as action potential which stimulates atrial systole.
b. ECG is an electrical representation of the graphical activity of the heart during a cardiac cycle.
c. The cardiac output of a normal man will be much lesser than an athlete.
d. The wall of right ventricle is much thicker than the left ventricle
e. In pisces the two separate circulatory pathways are present, hence they have double circulation.
f. The clsoed circulatory pattern is considered to be more advantageous than open circulatory pattern.
g. Glucose is absorbed by simple diffusion through lymph in lacteales present in the intestinal villi.
h. The SAN can generate the maximum number of action potential i.e. 140-150 `mi n^(-1)` in neonates, and is responsible for initiation and maintenance of the rhythmic contractile activity of the heart.
i. Angina can occur in any age but more common among the neonates and infants.
j. heart failure is sometimes called congestive heart failure because congestion of the blood vessels is one of the main symptoms of this disease.
mark the true and false statements
a. SAN generates as action potential which stimulates atrial systole.
b. ECG is an electrical representation of the graphical activity of the heart during a cardiac cycle.
c. The cardiac output of a normal man will be much lesser than an athlete.
d. The wall of right ventricle is much thicker than the left ventricle
e. In pisces the two separate circulatory pathways are present, hence they have double circulation.
f. The clsoed circulatory pattern is considered to be more advantageous than open circulatory pattern.
g. Glucose is absorbed by simple diffusion through lymph in lacteales present in the intestinal villi.
h. The SAN can generate the maximum number of action potential i.e. 140-150 `mi n^(-1)` in neonates, and is responsible for initiation and maintenance of the rhythmic contractile activity of the heart.
i. Angina can occur in any age but more common among the neonates and infants.
j. heart failure is sometimes called congestive heart failure because congestion of the blood vessels is one of the main symptoms of this disease.
b. ECG is an electrical representation of the graphical activity of the heart during a cardiac cycle.
c. The cardiac output of a normal man will be much lesser than an athlete.
d. The wall of right ventricle is much thicker than the left ventricle
e. In pisces the two separate circulatory pathways are present, hence they have double circulation.
f. The clsoed circulatory pattern is considered to be more advantageous than open circulatory pattern.
g. Glucose is absorbed by simple diffusion through lymph in lacteales present in the intestinal villi.
h. The SAN can generate the maximum number of action potential i.e. 140-150 `mi n^(-1)` in neonates, and is responsible for initiation and maintenance of the rhythmic contractile activity of the heart.
i. Angina can occur in any age but more common among the neonates and infants.
j. heart failure is sometimes called congestive heart failure because congestion of the blood vessels is one of the main symptoms of this disease.
Text Solution
AI Generated Solution
The correct Answer is:
### Step-by-Step Solution:
1. **Statement A**: "SAN generates an action potential which stimulates atrial systole."
- **Analysis**: The Sinoatrial Node (SAN) is known as the pacemaker of the heart. It generates electrical impulses that trigger atrial contraction (systole).
- **Verdict**: **True**
2. **Statement B**: "ECG is an electrical representation of the graphical activity of the heart during a cardiac cycle."
- **Analysis**: An Electrocardiogram (ECG) records the electrical activity of the heart and represents it graphically, showing different waves corresponding to heart activities.
- **Verdict**: **True**
3. **Statement C**: "The cardiac output of a normal man will be much lesser than an athlete."
- **Analysis**: Cardiac output is the amount of blood the heart pumps per minute. Athletes have higher cardiac output due to increased heart rate and stroke volume during physical activity.
- **Verdict**: **True**
4. **Statement D**: "The wall of the right ventricle is much thicker than the left ventricle."
- **Analysis**: The left ventricle has thicker walls than the right ventricle because it needs to pump blood into the aorta against higher pressure.
- **Verdict**: **False**
5. **Statement E**: "In pisces, the two separate circulatory pathways are present, hence they have double circulation."
- **Analysis**: Fish (pisces) have a single circulatory system where blood flows through the heart once in a complete cycle, not two separate pathways.
- **Verdict**: **False**
6. **Statement F**: "The closed circulatory pattern is considered to be more advantageous than the open circulatory pattern."
- **Analysis**: Closed circulatory systems allow for more efficient transport of blood and oxygen to tissues, making it more advantageous.
- **Verdict**: **True**
7. **Statement G**: "Glucose is absorbed by simple diffusion through lymph in lacteals present in the intestinal villi."
- **Analysis**: Glucose is absorbed directly into the blood from the intestinal villi, not through lymph.
- **Verdict**: **False**
8. **Statement H**: "The SAN can generate the maximum number of action potentials, i.e., 140-150 min^(-1) in neonates, and is responsible for initiation and maintenance of the rhythmic contractile activity of the heart."
- **Analysis**: The SAN can indeed generate around 140-150 action potentials per minute in neonates, making this statement true.
- **Verdict**: **True**
9. **Statement I**: "Angina can occur in any age but is more common among neonates and infants."
- **Analysis**: Angina is more common in middle-aged and elderly individuals, not in neonates and infants.
- **Verdict**: **False**
10. **Statement J**: "Heart failure is sometimes called congestive heart failure because congestion of the blood vessels is one of the main symptoms of this disease."
- **Analysis**: Congestive heart failure refers to congestion in the lungs and not primarily in blood vessels.
- **Verdict**: **False**
### Summary of True and False Statements:
- A: True
- B: True
- C: True
- D: False
- E: False
- F: True
- G: False
- H: True
- I: False
- J: False
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