MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify the part of the heart. |
| A. | Aorta |
| B. | Inferior vena cava |
| C. | Superior vena cava |
| D. | Pulmonary vein |
| Answer» B. Inferior vena cava | |
| 2. |
How many times does the heart beat in one minute? |
| A. | 40-60 |
| B. | 80-120 |
| C. | 70-75 |
| D. | 12-15 |
| Answer» D. 12-15 | |
| 3. |
Which of these is known as the pacemaker of the heart? |
| A. | Purkinje fibers |
| B. | AVN |
| C. | SAN |
| D. | Bundle of His |
| Answer» D. Bundle of His | |
| 4. |
How many action potentials can the SAN generate per minute? |
| A. | 40-60 |
| B. | 80-120 |
| C. | 12-16 |
| D. | 70-75 |
| Answer» E. | |
| 5. |
The nodal musculature of the heart is auto excitable. True or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of these structures is close to the AVN? |
| A. | SAN |
| B. | Left ventricle |
| C. | Atrio-ventricular septum |
| D. | Aorta |
| Answer» D. Aorta | |
| 7. |
What is the location of the SAN? |
| A. | Left upper corner of right ventricle |
| B. | Right upper corner of right ventricle |
| C. | Right upper corner of left atrium |
| D. | Right upper corner of right atrium |
| Answer» E. | |
| 8. |
What is the opening between the left atrium and the left ventricle known as? |
| A. | Mitral valve |
| B. | Tricuspid valve |
| C. | Aortic valve |
| D. | Pulmonary valve |
| Answer» B. Tricuspid valve | |
| 9. |
What is the opening between the right auricle and the right ventricle called? |
| A. | Aortic valve |
| B. | Bicuspid valve |
| C. | Tricuspid valve |
| D. | Pulmonary valve |
| Answer» D. Pulmonary valve | |
| 10. |
What is the atrio-ventricular septum made of? |
| A. | Cartilage |
| B. | Fibrous tissue |
| C. | Osteocytes |
| D. | Mucous membrane |
| Answer» C. Osteocytes | |
| 11. |
Which of these structures separate the atria of the heart? |
| A. | Septum |
| B. | Ventricle |
| C. | Purkinje fibers |
| D. | Bundle of His |
| Answer» B. Ventricle | |
| 12. |
What is the covering of the heart known as? |
| A. | Meninges |
| B. | Pleura |
| C. | Pericardium |
| D. | Peritoneum |
| Answer» D. Peritoneum | |
| 13. |
Which of these organs are situated in the thoracic cavity? |
| A. | Stomach |
| B. | Kidney |
| C. | Heart |
| D. | Ovaries |
| Answer» D. Ovaries | |
| 14. |
Which of these is not included in the vascular system? |
| A. | Heart |
| B. | Blood vessels |
| C. | Blood |
| D. | Lungs |
| Answer» E. | |