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Questions and Answers
What type of movement occurs when a bone rotates around a fixed axis?
What type of movement occurs when a bone rotates around a fixed axis?
Which movement increases the angle between two bones?
Which movement increases the angle between two bones?
What type of movement takes a bone away from the midline of the body?
What type of movement takes a bone away from the midline of the body?
Which movement decreases the angle between two bones?
Which movement decreases the angle between two bones?
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What type of movement brings a bone towards the midline of the body?
What type of movement brings a bone towards the midline of the body?
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In which plane of motion can the movements of extension, abduction, and adduction occur?
In which plane of motion can the movements of extension, abduction, and adduction occur?
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Study Notes
Bone Movement
Bone movement refers to the various ways in which bones move in relation to each other. There are several types of bone movement, including:
Rotation
- Rotational movement occurs when a bone rotates around a fixed axis, such as the rotation of the head on the atlas bone.
- This type of movement is typically seen in ball-and-socket joints, such as the shoulder and hip joints.
Extension
- Extension is a movement that increases the angle between two bones, such as straightening the elbow or knee.
- It is the opposite of flexion, which decreases the angle between two bones.
Abduction
- Abduction is a movement that takes a bone away from the midline of the body, such as raising the arm out to the side.
- This type of movement is typically seen in joints that allow for lateral movement, such as the shoulder and hip joints.
Flexion
- Flexion is a movement that decreases the angle between two bones, such as bending the elbow or knee.
- It is the opposite of extension, which increases the angle between two bones.
Adduction
- Adduction is a movement that brings a bone towards the midline of the body, such as bringing the arm back down to the side.
- This type of movement is typically seen in joints that allow for lateral movement, such as the shoulder and hip joints.
Note: These movements can occur in different planes of motion, such as the sagittal, frontal, or transverse plane, depending on the joint and the direction of movement.
Bone Movement
- Bone movement refers to the various ways in which bones move in relation to each other.
Types of Bone Movement
- Rotational movement: occurs when a bone rotates around a fixed axis, typically seen in ball-and-socket joints, such as the shoulder and hip joints.
- Extension: increases the angle between two bones, such as straightening the elbow or knee, opposite of flexion.
- Abduction: takes a bone away from the midline of the body, typically seen in joints allowing lateral movement, such as the shoulder and hip joints.
- Flexion: decreases the angle between two bones, such as bending the elbow or knee, opposite of extension.
- Adduction: brings a bone towards the midline of the body, typically seen in joints allowing lateral movement, such as the shoulder and hip joints.
Movement Planes
- Bone movements can occur in different planes of motion, including the sagittal, frontal, or transverse plane, depending on the joint and direction of movement.
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Description
Learn about the different types of bone movement, including rotation and extension, and how they occur in the human body.