Ligaments - Marvel EDU

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Practice Listening: Multiple Choice, Multiple Answers ID: #37722 Medium Ligaments

Instructions ›

Listen to the recording and answer the question by selecting all the correct responses. You will need to select more than one response.

Transcript:

The pelvis protects the lower abdominal and internal reproductive organs because the bones are linked to each other and act together. Body movement is made possible. However, no motion would be possible if it were not for the joints. Wherever 2 bones are attached, a joint is formed. Immovable joints are in the skull. Slightly movable joints are between the vertebrae of the spinal column, and free movable joints are in such places as the knee, shoulder, hip and elbow. Ligaments join bones together and keep them from getting out of place. The muscles are a bundle of fibers which have the property of contracting and relaxing. This produces motion in man. There are more than 500 muscles, and if it were not for the muscles, the body could not move. There are two types of muscles, involuntary and voluntary involuntary muscles which can be found in the heart. And the digestive system function automatically the voluntary muscles such as the bicep and tricep are under our control. Mechanically, the muscles can exert force and do work only by pulling, not by pushing. To restore a muscle to its original position, to work again, it must be pulled back into position. Consequently, muscles work in opposing groups, one of which reverses the action of the other.

Which statements accurately describe the roles of bones, joints, ligaments, and muscles in the human body, based on the information in the passage?

* Click on the correct answers

The pelvis protects the lower abdominal and internal reproductive organs due to the immovable joints in the skull. Ligaments, which join bones together, are crucial for body movement and preventing bones from getting out of place. Involuntary muscles, like those in the heart and digestive system, operate automatically, while voluntary muscles, such as the bicep and tricep, are under conscious control. Joints play a crucial role in body movement, with slightly movable joints found in the knee, shoulder, hip, and elbow. Muscles can exert force and do work by both pulling and pushing, allowing them to move bones in various directions.

Result:

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Option 2: "Ligaments, which join bones together, are crucial for body movement and preventing bones from getting out of place."

Explanation: This option is correct as it accurately reflects the information in the text. The passage states that ligaments join bones together and keep them from getting out of place, which is essential for body movement. This aligns with the overall theme of how different components of the musculoskeletal system work together.

Option 1: "The pelvis protects the lower abdominal and internal reproductive organs due to the immovable joints in the skull."

Explanation: This option is incorrect because it incorrectly links the pelvis's protective role to the immovable joints in the skull. The text states that the pelvis protects the lower abdominal and reproductive organs, but it does not mention the skull's immovable joints as a factor in this protection. Therefore, the connection made in this statement is misleading.

Option 3: "Involuntary muscles, like those in the heart and digestive system, operate automatically, while voluntary muscles, such as the bicep and tricep, are under conscious control."

Explanation: This option is correct because it accurately describes the functions of involuntary and voluntary muscles as stated in the text. The passage clearly differentiates between involuntary muscles, which function automatically, and voluntary muscles, which are under conscious control, thus supporting this statement.

Option 4: "Joints play a crucial role in body movement, with slightly movable joints found in the knee, shoulder, hip, and elbow."

Explanation: This option is incorrect because it misidentifies the types of joints found in the knee, shoulder, hip, and elbow. The text specifies that these joints are free movable, not slightly movable. Therefore, this statement contains contradictory information regarding the classification of joints.

Option 5: "Muscles can exert force and do work by both pulling and pushing, allowing them to move bones in various directions."

Explanation: This option is incorrect because it contradicts the information in the text, which states that muscles can only exert force and do work by pulling, not pushing. This fundamental misunderstanding of muscle mechanics makes the statement inaccurate.

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