Learn About Nerves Of The Thorax! Trivia Quiz
Do you wish to learn about the nerves of the thorax? The thorax also provides protection for the heart, lungs, and viscera it is located between the abdomen and the neck. I have prepared a quiz that will help you to learn more about this part of the body. Give it a try and keep a lookout for others like it!
- 1.
The medial pectoral nerve innervates which muscle/muscles?
- A.
Pectoralis major
- B.
Pectoralis minor
- C.
Pectoralis major and minor
Correct Answer
C. Pectoralis major and minorExplanation
The medial pectoral nerve innervates both the pectoralis major and pectoralis minor muscles. This means that it provides the necessary nerve supply for the contraction and movement of both muscles.Rate this question:
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- 2.
The medial pectoral nerve begins its course by traveling in front of the superior part of the axillary artery.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It begins its course behind the axillary arteryRate this question:
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- 3.
Which plexus do the medial and lateral pectoral nerves originate from?
- A.
Cervical plexus
- B.
Brachial plexus
- C.
Lumbar plexus
Correct Answer
B. Brachial plexusExplanation
The medial and lateral pectoral nerves originate from the brachial plexus. The brachial plexus is a network of nerves that originates from the spinal cord in the neck region and supplies the upper limb. The pectoral nerves innervate the pectoral muscles, which are located in the chest area. Therefore, it makes sense that these nerves would originate from the brachial plexus, which is responsible for supplying the nerves to the upper limb.Rate this question:
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- 4.
The lateral pectoral nerve arises superiorly to the pectoralis minor muscle.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The lateral pectoral nerve is a branch of the brachial plexus that supplies the pectoralis major muscle. It arises superiorly to the pectoralis minor muscle, which means it originates above this muscle. This is true because the pectoralis minor muscle lies deep to the pectoralis major muscle, and the lateral pectoral nerve travels superiorly to reach the pectoralis major.Rate this question:
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- 5.
Which muscles do the intercostal nerves run between?
- A.
Serratus anterior muscle and external intercostal muscle
- B.
External intercostal muscle and internal intercostal muscle
- C.
Internal intercostal muscle and innermost intercostal muscle
Correct Answer
C. Internal intercostal muscle and innermost intercostal muscleExplanation
The intercostal nerves run between the internal intercostal muscle and the innermost intercostal muscle. These muscles are located between the ribs and are responsible for the movement of the ribcage during breathing. The intercostal nerves provide sensory and motor innervation to these muscles, allowing them to contract and relax effectively.Rate this question:
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- 6.
The intercostal nerves originate from spinal nerves T1-T5 only.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
They originate from spinal nerves T1-T11Rate this question:
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- 7.
The left and right phrenic nerves give rise to the left and right recurrent laryngeal nerves.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The left and right vagus nerves give rise to the left and right recurrent laryngeal nerves.Rate this question:
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- 8.
The phrenic nerves innervate the diaphragm.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The phrenic nerves are responsible for providing motor and sensory innervation to the diaphragm, which is the primary muscle involved in the process of breathing. These nerves originate from the spinal cord in the neck and travel down to the diaphragm, controlling its movements and transmitting sensory information. Therefore, it is correct to say that the phrenic nerves innervate the diaphragm.Rate this question:
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- 9.
Which cranial nerve is the vagus nerve?
- A.
Cranial nerve VII
- B.
Cranial nerve VIII
- C.
Cranial nerve IX
- D.
Cranial nerve X
Correct Answer
D. Cranial nerve XExplanation
The vagus nerve is cranial nerve X. It is the longest cranial nerve and serves multiple functions, including controlling the muscles of the throat, voice box, and heart. It also plays a role in regulating digestion, breathing, and blood pressure.Rate this question:
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- 10.
The two sympathetic nerve chains run either side of the vertebral column.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the sympathetic nerve chains do indeed run on either side of the vertebral column. These chains consist of a series of ganglia connected by nerve fibers and are part of the autonomic nervous system. They play a crucial role in the body's "fight or flight" response, helping to regulate various bodily functions such as heart rate, blood pressure, and digestion.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Jan 08, 2012Quiz Created by
Clinical_anatomy
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