Lecture 2 - Muscles And Movement Of Spine And Trunk
The human body is made up many bones, which are all connected to the spine for support and supplement. The Lecture 2 - Muscles and movement of spine and trunk quiz will gauge your knowledge about the spine.
Questions and Answers
- 1.
The muscles found in the superficial layers in the back is called extrinsic muscles
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the muscles found in the superficial layers of the back are indeed called extrinsic muscles. These muscles are responsible for the movement and stabilization of the upper limbs and shoulders. They originate from outside the back and attach to the bones of the back, allowing for various movements such as pulling, pushing, and lifting. These extrinsic muscles work in conjunction with the intrinsic muscles, which are located deeper within the back, to provide strength and coordination in the back and upper body.Rate this question:
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- 2.
The extrinsic muscles are covered by the thoracolumbar fascia
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
IntrinsicRate this question:
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- 3.
The erector spinae group are extrinsic muscles
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
intrinsicRate this question:
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- 4.
The interspinales and intertransversarii muscles of the back are present mostly in the cervical and lumbar region
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Because ROM>Rate this question:
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- 5.
Which of these functions are NOT provided by the multifidi?1. Stabilization of the vertebral column together with the abdominals2. Proprioceptive information3. Active extension of the back
- A.
Option 1
- B.
Option 2
- C.
Option 3
Correct Answer
C. Option 3Explanation
The multifidi muscles are responsible for the stabilization of the vertebral column together with the abdominals. They also provide proprioceptive information, which is the sense of the relative position of neighboring parts of the body and the effort being employed in movement. However, the multifidi muscles do not actively extend the back. Therefore, option 3 is the correct answer.Rate this question:
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- 6.
The levator costae muscles originate at the transverse process at different levels almost only in the thoracic region and attaches to the rib one level below
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The explanation for the correct answer, which is True, is that the levator costae muscles do indeed originate at the transverse process at different levels in the thoracic region. These muscles then attach to the rib one level below their origin. This anatomical arrangement allows the levator costae muscles to assist in the elevation of the ribs during inspiration, helping to expand the thoracic cavity and facilitate breathing.Rate this question:
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- 7.
The Quadratus lumborum muscle laterally flexes the vertebral column to the same side
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the quadratus lumborum muscle is located in the lower back and plays a role in laterally flexing the vertebral column. This means that when the muscle contracts, it helps to bend the spine sideways towards the same side. Therefore, the correct answer is true.Rate this question:
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- 8.
The Quadratus lumborum is superficial to the latissimus dorsi muscle
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The Quadratus lumborum is not superficial to the latissimus dorsi muscle. In fact, it is located deep to the latissimus dorsi muscle. The quadratus lumborum is a deep muscle of the lower back, while the latissimus dorsi is a superficial muscle that covers a large portion of the back. Therefore, the statement is false.Rate this question:
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- 9.
Quadratus lumborum is surrounded by what parts of the thoracolumbar fascia?1. Anterior and middle layer2. Middle and posterior layer3. Posterior layer and Quadratus lumborum fascia
- A.
Option 1
- B.
Option 2
- C.
Option 3
Correct Answer
A. Option 1Explanation
holy crap that´s a lot of questions on Quadratus lumborumRate this question:
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- 10.
The muscles of the thoracic cage only play a role in respiration NOT in movement of the trunk
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The muscles of the thoracic cage, such as the diaphragm and intercostal muscles, are primarily responsible for the process of respiration. These muscles contract and relax to facilitate breathing by expanding and contracting the thoracic cavity. While they do contribute to the stability and support of the trunk, their main function is to assist in inhalation and exhalation rather than movement of the trunk. Therefore, the statement that the muscles of the thoracic cage only play a role in respiration and not in movement of the trunk is true.Rate this question:
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- 11.
The external intercostals are developed better in the anterior region (external intercostal membrane) than in the dorsal region of the thorax
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Developed better dorsally. Internal intercostals are better developed anteriorlyRate this question:
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- 12.
The internal intercostals are absent dorsally
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the internal intercostal muscles are only present ventrally (on the front side) of the intercostal spaces. These muscles are responsible for pulling the ribs downward during exhalation, aiding in the process of breathing. Dorsally (on the back side), the intercostal spaces are occupied by other structures such as the vertebrae and spinal muscles, therefore the internal intercostals are absent in that region.Rate this question:
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- 13.
What is NOT true about the intercostals?1. The innermost- and the internal intercostals are absent dorsally2. The intercostals are active as individual muscles3. The innermost intercostals are present in the lateral region of the thorax only
- A.
Option 1
- B.
Option 2
- C.
Option 3
Correct Answer
B. Option 2Explanation
The intercostals are not active as individual muscles. Instead, they work together as a group to assist in breathing by expanding and contracting the ribcage.Rate this question:
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- 14.
The intercostal nerve, artery and vein is located between the external and internal intercostal muscles
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
between the innermost and internal intercostalsRate this question:
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- 15.
The diaphragm is not a muscle
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The diaphragm is indeed a muscle. It is a dome-shaped muscle located at the base of the lungs, separating the chest cavity from the abdominal cavity. The diaphragm plays a crucial role in the process of breathing by contracting and relaxing, causing the lungs to expand and contract. It is the primary muscle responsible for inhalation and exhalation. Therefore, the statement that the diaphragm is not a muscle is incorrect.Rate this question:
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- 16.
In the abdominal wall Subcutaneous fat is superficial to the muscle fascia
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because subcutaneous fat is located just beneath the skin, making it superficial to the muscle fascia. The muscle fascia is a layer of connective tissue that surrounds and supports the muscles. Therefore, the subcutaneous fat is closer to the skin surface than the muscle fascia.Rate this question:
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- 17.
The fibers of the left external oblique runs in the same direction as the fibers of the right internal oblique
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The left external oblique and the right internal oblique are both abdominal muscles that are located on opposite sides of the body. The statement suggests that the fibers of these muscles run in the same direction. This is true because both muscles are oriented diagonally, with their fibers running from the lower ribs towards the midline of the body. Therefore, the statement is correct.Rate this question:
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- 18.
The rectus abdominis is three times as wide in the superior part as in the inferior part
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The rectus abdominis is a pair of long, flat muscles that run vertically along the anterior abdominal wall. It is responsible for flexing the trunk and compressing the abdominal contents. The statement suggests that the width of the rectus abdominis is greater in the superior part compared to the inferior part. This is true because the muscle fibers of the rectus abdominis gradually converge towards the midline as they descend, resulting in a narrower width in the lower region. Therefore, the statement is correct.Rate this question:
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- 19.
Anterior and posterior layers of rectus sheath unite medially to form:1. Aponeurosis oniño2. Linea alba3. Arcuate line4. Thoracolumbar aponeurosis
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
Correct Answer
B. Option 2Explanation
The anterior and posterior layers of the rectus sheath come together in the middle to form the linea alba. This is a fibrous band that runs vertically down the midline of the abdomen, connecting the abdominal muscles. It provides support and stability to the abdominal wall.Rate this question:
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- 20.
Statement: Muscle action depends on the starting position of the bodyInformation: In a sitting position: When you lean forward your abdominals may initiate the movement concentrically, but as soon as gravity takes over… 1. The abdominals will work eccentrically2. The muscles of the back will work eccentrically3. The muscles at the back will work concentrically
- A.
Option 1
- B.
Option 2
- C.
Option 3
Correct Answer
B. Option 2Explanation
When leaning forward in a sitting position, the abdominals may initially contract concentrically to initiate the movement. However, as gravity takes over, the muscles of the back will work eccentrically to control and slow down the movement. This means that the muscles of the back are lengthening while still generating force, which is characteristic of eccentric muscle contractions. Therefore, option 2 is the correct answer.Rate this question:
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- 21.
The first 60 degrees of trunk flexion, the gluteus maximus does most of the eccentric work to flex the spine
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Erector Spinae does the 60 first degrees while the glutes lock pelvis. The last 25 degrees back muscles relax and the glutes take over eccentricallyRate this question:
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- 22.
Raising intraabdominal pressure plays a role in stabilization of the lumbar spine
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
See weightlifters beltRate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Jan 12, 2015Quiz Created by
LordLauk
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