Multiple Choice
The vastus intermedius muscle is deep to which of the following muscles?
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9. Muscle Tissue
Introduction to Muscles and Muscle Tissue
Multiple Choice
What is the primary function of the tendinous chords in the musculoskeletal system?
A
To store calcium
B
To transmit nerve impulses
C
To stabilize the heart valves
D
To connect muscles to bones
Verified step by step guidance1
Understand the anatomy of the heart: The heart contains four chambers and valves that regulate blood flow between these chambers.
Identify the role of tendinous chords: Tendinous chords, also known as chordae tendineae, are fibrous cords that connect the papillary muscles to the tricuspid and mitral valves in the heart.
Explore the function of tendinous chords: These chords prevent the inversion or prolapse of the valves during ventricular contraction, ensuring that blood flows in the correct direction.
Differentiate from other options: Tendinous chords do not store calcium, transmit nerve impulses, or connect muscles to bones. Their primary role is related to heart valve stabilization.
Conclude with the correct function: The primary function of tendinous chords is to stabilize the heart valves, preventing backflow of blood and maintaining efficient circulation.
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