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Questions and Answers
What are the main components of the musculoskeletal system?
Bones, joints, and muscles
Which type of muscle tissue is responsible for pumping blood?
Skeletal muscles can be controlled voluntarily.
True
What percentage of human body weight do skeletal muscles comprise?
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The primary function of the musculoskeletal system is to provide ______.
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How many types of muscle contraction are there?
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What are the names of the three types of muscle contraction?
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What tissue connects skeletal muscles to bones?
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Cardiac muscle is considered to be [blank].
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Study Notes
Musculoskeletal System - Components and Functions
- The musculoskeletal system is composed of bones, joints, and muscles.
- It provides form, support, and stability to the body, enabling movement.
Types of Muscle Tissue
- Skeletal muscle: Voluntary control, attached to bones, makes up 30-40% of body weight, striated appearance under microscope.
- Smooth muscle: Involuntary control, found in internal organs (blood vessels, hair follicles, digestive tract), contracts slower but for longer durations.
- Cardiac muscle: Involuntary control, exclusively found in the heart, responsible for pumping blood throughout the body.
Functions of the Musculoskeletal System
- Supports the body and keeps it upright.
- Enables movement.
- Protects internal organs.
- Stores calcium, phosphorus, and blood components.
Muscle Contraction Types
- Concentric contraction: Muscle shortens.
- Eccentric contraction: Muscle lengthens.
- Isometric contraction: Muscle remains static, no length change.
Naming Skeletal Muscles
- Muscle names are based on their action, location, shape, fiber direction, number of divisions/heads, or attachment points.
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Description
Explore the components and functions of the musculoskeletal system including types of muscle tissue and their roles. Test your knowledge on muscle contraction types and how the system supports bodily functions. Dive deep into the intricacies of bones, joints, and muscles to enhance your understanding.
