Multiple Choice
Ligaments connect __________ to __________.
38. Animal Form and Function
Animal Tissues
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Myosin and actin are __________.
A
components of the extracellular matrix of cartilage
B
types of skeletal muscle
C
found localized in intercalated disks
D
unique to cardiac muscle
E
proteins that play a major role in muscle contraction
Verified step by step guidance1
Understand that myosin and actin are proteins involved in muscle contraction. They are not components of the extracellular matrix of cartilage, which primarily consists of collagen and proteoglycans.
Recognize that myosin and actin are not types of skeletal muscle themselves, but rather proteins found within muscle fibers that facilitate contraction.
Note that intercalated disks are specialized structures found in cardiac muscle, but myosin and actin are not localized specifically to these disks. Instead, they are present in all types of muscle tissue.
Acknowledge that myosin and actin are not unique to cardiac muscle. They are found in skeletal, cardiac, and smooth muscle tissues, playing a crucial role in the contraction process.
Conclude that myosin and actin are proteins that play a major role in muscle contraction across different types of muscle tissues, not limited to any specific type or structure.
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