Podcast
Questions and Answers
Which muscle type is responsible for involuntary movement and is only found in the heart?
Which muscle type is responsible for involuntary movement and is only found in the heart?
What type of bone is primarily responsible for weight-bearing in the skeleton?
What type of bone is primarily responsible for weight-bearing in the skeleton?
What process involves the continuous replacement of old bone with new bone?
What process involves the continuous replacement of old bone with new bone?
Which classification of bone is characterized by a unique shape and found in the vertebrae?
Which classification of bone is characterized by a unique shape and found in the vertebrae?
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Which type of muscle functions voluntarily and is attached to the skeleton by tendons?
Which type of muscle functions voluntarily and is attached to the skeleton by tendons?
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What type of bone provides mechanical protection for internal organs?
What type of bone provides mechanical protection for internal organs?
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What are the small, cube-shaped bones found in the wrists and ankles classified as?
What are the small, cube-shaped bones found in the wrists and ankles classified as?
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Which of the following is NOT a function of bones?
Which of the following is NOT a function of bones?
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What does the term mobility refer to?
What does the term mobility refer to?
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What is the purpose of nursing in relation to mobility?
What is the purpose of nursing in relation to mobility?
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How many muscles are there in the human body?
How many muscles are there in the human body?
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Which of the following is NOT one of the four properties of a muscle?
Which of the following is NOT one of the four properties of a muscle?
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What occurs when a resting muscle is stimulated?
What occurs when a resting muscle is stimulated?
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What is ambulation defined as?
What is ambulation defined as?
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What does contractibility refer to in muscle properties?
What does contractibility refer to in muscle properties?
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What is a key challenge in building and maintaining muscles?
What is a key challenge in building and maintaining muscles?
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What is the primary function of cartilage in the body?
What is the primary function of cartilage in the body?
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Which movement describes turning the palm upwards?
Which movement describes turning the palm upwards?
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What type of postural misalignment is characterized by an abnormally rounded upper back?
What type of postural misalignment is characterized by an abnormally rounded upper back?
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What is indicated by prolonged immobility in the body?
What is indicated by prolonged immobility in the body?
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Which of the following movements involves decreasing the angle between two bones?
Which of the following movements involves decreasing the angle between two bones?
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Which postural misalignment describes the loss of curvature in the spine?
Which postural misalignment describes the loss of curvature in the spine?
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What describes the movement that involves pointing toes downward away from the body?
What describes the movement that involves pointing toes downward away from the body?
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Which type of joint movement involves moving a limb away from the baseline?
Which type of joint movement involves moving a limb away from the baseline?
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What are the initial impacts of immobility on joints?
What are the initial impacts of immobility on joints?
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What is activity intolerance?
What is activity intolerance?
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Which of the following describes proper positioning?
Which of the following describes proper positioning?
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What is a potential consequence of prolonged immobility?
What is a potential consequence of prolonged immobility?
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What is activity tolerance?
What is activity tolerance?
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What does the concept of 'venous stasis' refer to?
What does the concept of 'venous stasis' refer to?
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Which of the following is NOT a goal of proper positioning and alignment?
Which of the following is NOT a goal of proper positioning and alignment?
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What differentiates proper body mechanics from improper body mechanics?
What differentiates proper body mechanics from improper body mechanics?
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Study Notes
Mobility/Activity
- Dr. Paola Reyes is a DNP, PHN, CMSRN, CHEP
- Mobility is another word for motion or movement
- Bodies are designed for motion using muscles, skeleton, and nerves together
- Nursing goals include preserving, maintaining, and restoring mobility as much as possible
- Ambulation is the ability to walk from place to place independently
Musculoskeletal System
- "Musculoskeletal" is a general term for muscles and the skeleton
- The muscles provide the power for movement, and there are over 600 muscles in the human body
- Muscles account for half of a person's weight
- When contracted across a joint, muscles create force to pull against the skeleton
- Muscles require large amounts of oxygen and glucose for function, making it difficult to maintain them
The Four Properties of a Muscle
- Contractibility: The ability to shorten and relax
- Excitability: Muscle fibers receive and respond to nerve/hormone stimulation. When stimulated, they become charged
- Extensibility: The ability to stretch, simultaneously with other muscles contracting
- Elasticity: The ability to return to the original state after contraction/extension.
Three Main Muscle Types
- Cardiac: Located in the heart, involuntary
- Smooth: Located in blood vessels, visceral organs; involuntary
- Skeletal: Attached to bones by tendons; voluntary
Functions of a Muscle (Mnemonic)
- M: Muscles
- C: Contract and
- P: Pull to
- G: Generate
- M: Movement
The Skeletal System
- Made up of 206 different bones
- Bones provide rigid structure and shape
- Bones are the body's weight-bearing organ, providing protection
- Bones support and protect internal organs and store minerals
- Bones are composed of layers, not solid structures
- Bones provide structure but can't move independently
Classifications of Bones
- Long Bones: Weight-bearing, longer than wide (e.g., humerus)
- Short Bones: Small and cube-shaped (e.g., wrist and ankle bones)
- Flat Bones: Thin and flat (e.g., skull, ribs, sternum)
- Irregular Bones: Unique shapes (e.g., vertebrae, sacrum, coccyx)
- Sesamoid Bones: Formed within tendons and provide protection (e.g., patella)
Remodeling
- Once matured, bones constantly remodel, replacing old bone with new bone
Cartilage
- A firm, yet flexible connective tissue
- Found in many areas, such as ears, nose, larynx, ribs, intervertebral discs, knees, and ankles
Types of Movements
- Flexion: Reduces the angle between bones
- Extension: Straightens the limb
- Abduction: Moves away from baseline
- Adduction: Moves closer to baseline
- Pronation: Turns to face backwards
- Supination: Turns to face forward
- Circumduction: Circular motion
- Rotation: Side-to-side
- Inversion: Turns inward
- Eversion: Turns outward
- Dorsiflexion: Draws toes upward
- Plantarflexion: Points toes downward
Body Mechanics
- The combined effort of skeletal and nervous systems
- Involves maintaining posture, alignment, and balance
- Knowledge of body movements and systems necessary for maximizing strength, minimizing strain
- Good posture is important in good body mechanics
Types of Postural Misalignments
- Lordosis: Inward curve of lower back, pelvis tilted anteriorly
- Kyphosis: Abnormally rounded upper back, pelvis tilted forward
- Flat Back: Loss of spine curvature, straightening of the back
- Sway Back: Lower back and pelvis tilting forward, head positioned forward
- Scoliosis: C- or S-shaped spine curvature
Immobility
- Inability to move one or more body parts
- Negatively affects all major bodily systems and may lead to dependence
- Impacts include stiffness, pain, limited range of motion in joints
- Causes fibrofatty tissue formation and abnormal joint adhesions that reduce nourishment
- Prolonged immobility causes blood flow to slow (venous stasis), increasing clotting risk
Assessment of Mobility
- Activity intolerance: Insufficient energy for activity
- Activity tolerance: Ability to complete activity without distress
- ADL (Activities of Daily Living): Essential skills needed for daily living, performed independently (personal care, etc.)
Proper Positioning
- Intentional placement of the body or body parts
- Aligns the body in a neutral position, supports natural curves, and avoids pressure points
- Aims to prevent hyperextension, rotation, and promote client well-being and prevent harm
Proper Body Mechanics
- Differentiating between proper and improper body mechanics
- Important when performing any activity involving a client
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Description
This quiz covers essential concepts in nursing related to mobility and the musculoskeletal system. It explores the importance of movement, the role of muscles and skeleton, and the key properties of muscles. Perfect for nursing students seeking to enhance their understanding of human movement.