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Questions and Answers
What is the effect of flexion on a joint?
What is the effect of flexion on a joint?
- It moves the joint away from the midline.
- It decreases the joint angle. (correct)
- It increases the joint angle.
- It twists the joint outward.
Which of the following describes extension?
Which of the following describes extension?
- Moving a limb towards the midline.
- Increasing the joint angle. (correct)
- Decreasing the angle of a joint.
- Closing the joint space.
What occurs during internal rotation of a joint?
What occurs during internal rotation of a joint?
- The joint moves towards the outside.
- The joint moves away from the body.
- The joint twists towards the inside. (correct)
- The joint angles decrease.
How is abduction defined?
How is abduction defined?
What does eversion refer to?
What does eversion refer to?
Which movement describes decreasing the angle between two body parts?
Which movement describes decreasing the angle between two body parts?
What joint movement is described as decreasing the joint angle to the side?
What joint movement is described as decreasing the joint angle to the side?
What does the term 'abduction' refer to in anatomical movement?
What does the term 'abduction' refer to in anatomical movement?
Which term best describes the movement that involves turning a body part around its axis?
Which term best describes the movement that involves turning a body part around its axis?
What is the opposite of plantar flexion?
What is the opposite of plantar flexion?
Which term describes the action of a joint moving toward the midline of the body?
Which term describes the action of a joint moving toward the midline of the body?
What is the primary movement involved in bringing a limb closer to the body?
What is the primary movement involved in bringing a limb closer to the body?
In terms of foot movements, what does 'inversion' refer to?
In terms of foot movements, what does 'inversion' refer to?
Circumduction refers to which type of movement?
Circumduction refers to which type of movement?
What action is termed when the toes are turned inwards?
What action is termed when the toes are turned inwards?
Extension is characterized by which of the following movements?
Extension is characterized by which of the following movements?
What type of movement occurs when the foot is turned outward?
What type of movement occurs when the foot is turned outward?
Which type of movement would be involved in swinging a limb forward and backward?
Which type of movement would be involved in swinging a limb forward and backward?
What type of movement does the sagittal plane primarily allow?
What type of movement does the sagittal plane primarily allow?
Which of the following movements would occur in the frontal plane?
Which of the following movements would occur in the frontal plane?
Which movement is an example of abduction in the context of the frontal plane?
Which movement is an example of abduction in the context of the frontal plane?
What is the main type of movement associated with the transverse plane?
What is the main type of movement associated with the transverse plane?
In which plane would you perform a movement involving inversion and eversion?
In which plane would you perform a movement involving inversion and eversion?
Which movement does NOT occur in the sagittal plane?
Which movement does NOT occur in the sagittal plane?
What type of movements are primarily associated with the sagittal plane?
What type of movements are primarily associated with the sagittal plane?
Which of the following examples is associated with rotational movements?
Which of the following examples is associated with rotational movements?
Which movement could be classified as flexion?
Which movement could be classified as flexion?
What kind of movement is NOT associated with the frontal plane?
What kind of movement is NOT associated with the frontal plane?
Study Notes
Synovial Joints Overview
- There are six types of synovial joints, which allow for various movements in the body.
Types of Synovial Joints
- Pivot Joints: Enable rotation; example includes the Atlas and Axis vertebrae.
- Gliding Joints: Allow for sliding movements; seen in the carpals and tarsals.
- Ellipsoid Joints: Permit flexion and extension, as well as side-to-side movement; radiocarpal joint (wrist) is an example.
- Saddle Joints: Found in the thumbs, allowing for a wide range of motion.
Joint Health Requirements
- Healthy joints need adequate space and lubrication.
- Movement is crucial for achieving lubrication in joints.
Anatomical Joint Movements
- Flexion: Decreases the angle of a joint.
- Extension: Increases the angle of a joint.
- Lateral Flexion: Movement decreasing joint angle to the side.
- Rotation: Twisting motion of a joint.
- Internal/External Rotation: Movement towards the midline (internal) or away (external).
- Abduction: Moving limbs away from the midline.
- Adduction: Moving limbs towards the midline.
- Horizontal Flexion/Extension: Specific to the shoulder, including horizontal abduction/adduction.
- Pronation: Rotating the body to face downward.
- Supination: Rotating the body to face upward.
- Inversion: Turning toes inward.
- Eversion: Turning toes outward.
- Plantar Flexion: Pointing toes downward.
- Dorsiflexion: Raising toes upward.
- Circumduction: Conical movement at joints, like in arm circles.
- Depression: Lowering a body part.
- Elevation: Raising a body part.
- Retraction: Pulling a body part closer.
- Protraction: Pushing a body part farther away.
Anatomical Terms
- Anatomical Position: Standard orientation of the body for anatomical studies.
- Distal: Further from the center; e.g. the elbow is more proximal than the phalanges.
Planes of Movement
- Sagittal Plane: Divides body into left and right; movement includes flexion and extension; examples include lunges and running.
- Frontal Plane: Divides body into front and back; allows lateral movements; examples include side lunges and lateral raises.
- Transverse Plane: Divides body into upper and lower; allows for rotational movements; examples include spinal rotation and internal/external rotations of limbs.
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Description
Explore the architecture of synovial joints through this quiz. Learn about the six types of synovial joints and their specific functions in the human body. Test your understanding of the radius, ulna, and carpals as you navigate through joint movements.
