Function Of The Ventricles Of The Brain
.jpg "Function Of The Ventricles Of The Brain - Quiz")
Neurology calls for all its practitioners to comprehensively understand the structure of the brain. Are you one and would want to learn more about the functions of the ventricles of the brain? Take up the challenge below and learn.
Questions and Answers
- 1.
Which vessel supplies blood to the left atrium and ventricle
- A.
Right coronary artery
- B.
Left coronary artery
- C.
Right subclavian artery
- D.
Left subclavian artery
Correct Answer
B. Left coronary arteryExplanation
The left coronary artery is responsible for supplying blood to the left atrium and ventricle. It branches off from the aorta and delivers oxygenated blood to the heart muscle. This artery plays a crucial role in maintaining the blood supply to the left side of the heart, which is responsible for pumping oxygenated blood to the rest of the body. Without the left coronary artery, the left atrium and ventricle would not receive adequate blood flow, leading to potential heart complications.Rate this question:
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- 2.
Where is the foramen ovale located?
- A.
Between the right atrium and right ventricle
- B.
Between the left atrium and left ventricle
- C.
Within the interventricular septum
- D.
Within the interatrial septum
Correct Answer
D. Within the interatrial septumExplanation
The foramen ovale is located within the interatrial septum. This is the wall that separates the left and right atria of the heart. The foramen ovale is a small opening in this septum, which allows blood to flow from the right atrium to the left atrium in a developing fetus. After birth, the foramen ovale usually closes permanently, allowing for normal blood flow within the heart.Rate this question:
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- 3.
Questions 49 through 52 refer to the figure below of an axial, T1-weighted MRI of the sublingual glands.Which arrow points to the internal jugular vein
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
B. BExplanation
In the given figure, arrow B points to the internal jugular vein. The internal jugular vein is one of the major veins in the neck that drains blood from the brain, face, and neck, and it is located in close proximity to the sublingual glands. The other arrows (A, C, and D) do not point to the internal jugular vein and likely represent other structures in the image.Rate this question:
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- 4.
Which vessel is typically the most superior of the pulmonary vessels
- A.
Right pulmonary artery
- B.
Right pulmonary vein
- C.
Left pulmonary artery
- D.
Left pulmonary vein
Correct Answer
C. Left pulmonary arteryExplanation
The left pulmonary artery is typically the most superior of the pulmonary vessels. This is because it is the vessel that carries deoxygenated blood from the heart to the left lung for oxygenation. Superiority in this context refers to the position of the vessel in relation to the heart and lungs. The left pulmonary artery is located higher in the chest compared to the other options, making it the most superior vessel.Rate this question:
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- 5.
The insula is considered part of the:
- A.
Cerebral cortex
- B.
Basal ganglia
- C.
Brainstem
- D.
Cerebellum
Correct Answer
A. Cerebral cortexExplanation
The insula is considered part of the cerebral cortex. The cerebral cortex is the outer layer of the brain responsible for higher cognitive functions such as perception, memory, language, and decision-making. The insula is located deep within the lateral sulcus and is involved in various functions including emotion, empathy, self-awareness, and interpersonal experiences. It plays a crucial role in integrating sensory information and coordinating responses to stimuli.Rate this question:
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- 6.
Question 51 through 54 refer to the figure below of an LVOT MRI.Which arrow points to the left ventricle
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
D. DExplanation
In the figure of the LVOT MRI, the arrow pointing to the left ventricle is labeled as D.Rate this question:
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- 7.
Questions 41 through 44 refer to the figure below of a sagittal CT reformat of the cranium.Which arrow points to the occipital bone
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
D. DExplanation
The occipital bone is located at the back of the cranium, forming the base of the skull. In the given figure, arrow D points towards the back of the cranium, indicating the occipital bone.Rate this question:
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- 8.
Which muscles aid in inspiration as well as flex the neck?
- A.
Pectoralis major and minor
- B.
Serratus anterior and posterior
- C.
Greater and lesser rhomboid
- D.
Anterior and posterior scalene
Correct Answer
D. Anterior and posterior scaleneExplanation
The anterior and posterior scalene muscles aid in inspiration by elevating the first and second ribs, helping to expand the thoracic cavity and increase lung capacity. Additionally, these muscles also flex the neck, allowing for movements such as tilting the head forward and to the side.Rate this question:
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- 9.
Question 39 through 42 refer to the figure below.Which arrow points to the left atrium
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
B. BExplanation
The arrow pointing to the left atrium is B. This can be determined by analyzing the figure and identifying the structures labeled. The left atrium is typically located on the left side of the heart, and in this figure, arrow B is pointing to a structure that matches the location and shape of the left atrium. Therefore, arrow B is the correct answer.Rate this question:
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- 10.
The plane that passes diagonally between the axes of two other planes is the ____ plane
- A.
Sagittal
- B.
Coronal
- C.
Axial
- D.
Oblique
Correct Answer
D. ObliqueExplanation
The term "oblique" refers to something that is neither parallel nor perpendicular to a given line or plane. In the context of this question, the plane that passes diagonally between the axes of two other planes would not be parallel or perpendicular to either of them. Therefore, the correct answer is "oblique."Rate this question:
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- 11.
Question 55 through 58 refer to the figure tbelow of a coronal CT reformat of the serratus anterior muscle.Which arrow points to the brachiocephalic trunk
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
A. AExplanation
In the given figure, the arrow labeled "A" points to the brachiocephalic trunk.Rate this question:
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- 12.
Questions 54 through 58 refer to the figure below of an axial T2-weighted MRI of the brain.Which arrow points to the cochlea
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
Correct Answer
E. E -
- 13.
Questions 27 through 30 refer to the figure below of an RVOT CT.Which arrow points to the root of the aorta
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
B. BExplanation
The arrow pointing to B indicates the root of the aorta. The root of the aorta is the beginning of the aorta, where it emerges from the left ventricle of the heart. It is responsible for carrying oxygenated blood to the rest of the body.Rate this question:
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- 14.
Questions 55 through 58 refer to the figure below of a coronal CT reformat of the serratus anterior muscle.Which arrow points to the inferior vena cava
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
C. C -
- 15.
Questions 33 through 36 refer to the figure below of a coronal, T2-weighted MRI of the brain.Which arrow points to the basilar artery
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
B. BExplanation
The basilar artery is located in the midline of the brainstem, running along the ventral surface. In the given MRI image, arrow B points to a blood vessel that is located in the midline and runs along the ventral surface, indicating that it is the basilar artery.Rate this question:
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- 16.
Questions 44 through 48 refer to the figure below of a coronal CT reformat of the neck.Which arrow points to the common carotid artery
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
Correct Answer
C. CExplanation
In the figure, arrow C points to the common carotid artery. The common carotid artery is a major blood vessel in the neck that supplies oxygenated blood to the head and neck region. It is located on both sides of the neck and can be easily identified in this image.Rate this question:
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- 17.
Which arrow points to the left subclavian artery
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
C. CExplanation
Arrow C points to the left subclavian artery.Rate this question:
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- 18.
The petrosal nerve passes through the:
- A.
Foramen rotundum
- B.
Foramen spinosum
- C.
Optic canal
- D.
Pterygoid canal
Correct Answer
D. Pterygoid canalExplanation
The petrosal nerve passes through the pterygoid canal. This canal is a bony passage located in the sphenoid bone, connecting the middle cranial fossa with the pterygopalatine fossa. The petrosal nerve, also known as the greater petrosal nerve, is a branch of the facial nerve. It arises from the geniculate ganglion and travels through the petrous part of the temporal bone before entering the pterygoid canal. From there, it continues to the pterygopalatine ganglion, where it synapses and distributes to various structures in the head and neck.Rate this question:
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- 19.
Which of the following is a parameter that allows for the adjustment of the gray scale
- A.
CT number
- B.
Hounsfield unit
- C.
Window width
- D.
Window level
Correct Answer
C. Window widthExplanation
The window width is a parameter that allows for the adjustment of the gray scale in medical imaging, particularly in CT scans. It controls the range of CT numbers that are displayed as different shades of gray on the image. By adjusting the window width, the radiologist can enhance or decrease the contrast in the image, making it easier to visualize specific structures or abnormalities.Rate this question:
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.jpg "Question 51 through 54 refer to the figure below of an LVOT MRI.Which arrow points to the left ventricle")
.png "Questions 41 through 44 refer to the figure below of a sagittal CT reformat of the cranium.Which arrow points to the occipital bone")
.jpg "Question 39 through 42 refer to the figure below.Which arrow points to the left atrium")
.jpg "Question 55 through 58 refer to the figure tbelow of a coronal CT reformat of the serratus anterior muscle.Which arrow points to the brachiocephalic trunk")
.jpg "Questions 27 through 30 refer to the figure below of an RVOT CT.Which arrow points to the root of the aorta")
.jpg "Questions 55 through 58 refer to the figure below of a coronal CT reformat of the serratus anterior muscle.Which arrow points to the inferior vena cava")
.jpg "Which arrow points to the left subclavian artery")
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