Musculoskeletal System Overview
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Questions and Answers

Which hormone is primarily responsible for increasing calcium absorption in the body?

  • Calcitonin
  • Calcitriol (correct)
  • Growth hormone
  • Parathyroid hormone

What type of joint is characterized by allowing movement in only one direction?

  • Saddle joint
  • Pivot joint
  • Hinge joint (correct)
  • Gliding joint

What stage of fracture healing involves the formation of a soft connective tissue structure?

  • Remodeling
  • Hematoma formation
  • Inflammation
  • Fibrocartilaginous callus formation (correct)

Which type of muscle contraction is characterized by the muscle maintaining the same length while increasing tension?

<p>Isometric contraction (D)</p> Signup and view all the answers

What structure surrounds the articulating bones in a joint?

<p>Joint capsule (A)</p> Signup and view all the answers

Which joint type is classified as allowing limited movement, such as in the carpal bones?

<p>Gliding joint (A)</p> Signup and view all the answers

What is the main energy molecule that muscles require for contraction and relaxation?

<p>ATP (A)</p> Signup and view all the answers

Which joints allow for rotational movement?

<p>Pivot joints (C)</p> Signup and view all the answers

What is a primary focus in the nursing management of a patient undergoing outpatient hand or wrist surgery?

<p>Neurovascular assessment (D)</p> Signup and view all the answers

Which of the following treatments is least effective in curing bursitis or tendonitis?

<p>Surgical intervention (D)</p> Signup and view all the answers

What are common manifestations of impingement syndrome in the shoulder?

<p>Pain and edema (B)</p> Signup and view all the answers

Which factor is NOT associated with the development of carpal tunnel syndrome?

<p>High cholesterol levels (A)</p> Signup and view all the answers

What is the primary purpose of interventions for bursitis and tendonitis?

<p>To relieve pain (B)</p> Signup and view all the answers

Which assessment method would NOT be appropriate for a patient post-hand or wrist surgery?

<p>Blood pressure monitoring (B)</p> Signup and view all the answers

What is NOT a characteristic of loose bodies in the joint?

<p>Commonly treated with NSAID's (B)</p> Signup and view all the answers

Which of the following is a common sign of carpal tunnel syndrome?

<p>Weakness in the fingers (D)</p> Signup and view all the answers

What kind of injury typically leads to impingement syndrome in the shoulder?

<p>Chronic stress from overhead activities (A)</p> Signup and view all the answers

For a patient experiencing carpal tunnel syndrome, which symptom is typically experienced at night?

<p>Night pain or clenching fists (B)</p> Signup and view all the answers

What is the primary goal of RICE therapy in managing soft tissue injuries?

<p>Control bleeding and reduce swelling (B)</p> Signup and view all the answers

Which type of fracture is characterized as being stable and typically requires only bed rest and analgesics for treatment?

<p>Stable pelvic fracture (D)</p> Signup and view all the answers

Which grade of sprain indicates a complete tear or rupture of the ligament?

<p>Grade 3 (A)</p> Signup and view all the answers

What is a common complication associated with fractures that can occur early after injury?

<p>Fat embolism (B)</p> Signup and view all the answers

In managing open fractures, what is crucial to prevent contamination?

<p>Covering with a sterile dressing (B)</p> Signup and view all the answers

Which of the following factors can negatively affect fracture healing?

<p>Age greater than 40 (A)</p> Signup and view all the answers

What is a key characteristic of subluxation compared to a dislocation?

<p>Is a partial or incomplete dislocation (A)</p> Signup and view all the answers

What is the primary characteristic of primary osteoarthritis?

<p>It does not involve autoimmunity or inflammation. (C)</p> Signup and view all the answers

Which of the following is considered a noninflammatory degenerative disorder?

<p>Osteoarthritis (A)</p> Signup and view all the answers

Which statement reflects a misconception about osteoarthritis?

<p>Weight loss has no impact on symptom management. (B)</p> Signup and view all the answers

What is a significant non-modifiable risk factor for developing osteoarthritis?

<p>Age (C)</p> Signup and view all the answers

Which of the following management strategies is NOT typically used for osteoporosis?

<p>High-impact sports (A)</p> Signup and view all the answers

Which factor contributes to the development of osteoporosis over time?

<p>Higher rates of bone resorption (A)</p> Signup and view all the answers

Which of the following statements about osteomalacia is correct?

<p>It results from an impaired bone mineralization process. (D)</p> Signup and view all the answers

What is the recommended daily duration for weight-bearing exercises to support osteoporosis prevention?

<p>20 to 30 minutes (D)</p> Signup and view all the answers

Which nursing intervention is essential after foot surgery?

<p>Neurovascular assessment (A)</p> Signup and view all the answers

What is a common symptom of osteoarthritis that improves with rest?

<p>Morning stiffness that subsides within 30 minutes (A)</p> Signup and view all the answers

Which diagnostic procedure is LEAST likely to be used for suspected serious low back pain?

<p>Ultrasound (A)</p> Signup and view all the answers

What is the primary purpose of implementing health promotion activities for a patient with low back pain?

<p>To promote a healthy back through lifestyle changes (B)</p> Signup and view all the answers

How should sitting be managed for patients experiencing low back pain?

<p>Limit sitting to 20 to 50 minutes based on comfort (C)</p> Signup and view all the answers

Which nursing intervention is NOT typically associated with managing low back pain?

<p>Promotion of excessive exercise (C)</p> Signup and view all the answers

What condition is notably characterized by a flexion deformity of the hand?

<p>Dupuytren contracture (B)</p> Signup and view all the answers

In assessing carpal tunnel syndrome, what reaction indicates a positive Tinel sign?

<p>Tingling or numbness when percussing the median nerve (C)</p> Signup and view all the answers

Which of the following is NOT a recommended practice for individuals managing low back pain?

<p>Complete inactivity for longer than 2 weeks (D)</p> Signup and view all the answers

Which diagnostic procedure is often utilized for evaluating suspected spinal infections?

<p>Bone scan (C)</p> Signup and view all the answers

Which of the following is NOT classified as a common condition of the upper extremities?

<p>Sciatica (D)</p> Signup and view all the answers

Which of the following interventions is important to avoid during the management of low back pain?

<p>Prescribing complete bed rest (A)</p> Signup and view all the answers

Flashcards

Bone Health

Maintaining healthy bones relies on sufficient calcium and vitamin D, along with hormone regulation (calcitriol, parathyroid hormone, calcitonin), influencing calcium absorption and homeostasis for optimal bone health.

Joint Types

Joints are classified as synarthrosis (immovable), amphiarthrosis (limited movement), or diarthrosis (freely movable), with each type supporting different movements and functions in the body.

Diarthrosis Joints

Freely movable joints, subdivided into ball-and-socket, hinge, saddle, pivot, and gliding, each with unique movement capabilities in the body.

Joint Capsule

A fibrous sac that surrounds a joint, containing synovial fluid for lubrication, acting as a shock absorber for the joint.

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Muscle Contraction

Nerve stimulation initiates depolarization, causing an action potential which triggers calcium release. This allows for the sliding of myosin and actin, producing movement.

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Isotonic Contraction

Muscle shortens without change in tension, like flexing your arm.

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Fracture Healing Stages

Fracture healing progresses through stages: hematoma formation, inflammation, callus formation, and finally, remodeling, returning bone to its original state.

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Muscle Energy Source

Muscles require ATP (adenosine triphosphate) for contraction and relaxation, providing crucial energy for movement.

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Neurovascular Assessment (Foot Surgery)

Checking blood flow and nerve function in the foot after surgery to detect possible complications.

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Osteoarthritis (OA)

A joint disorder causing cartilage breakdown, leading to pain and stiffness.

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Primary Osteoarthritis

Idiopathic OA; not related to another condition, but often age-related.

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Osteophyte Formation

Growth of extra bone around a joint due to OA.

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OA Risk Factors

Factors like age, obesity, and certain activities increasing OA chance.

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OA Pain Management

Using approaches like exercise, medication, and supplements to reduce OA pain.

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Osteoporosis

A bone disease where bone thinning increases fracture risk.

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Osteoporosis Prevention

Strategies to reduce chance of osteoporosis, including diet and exercise.

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Osteomalacia

Softening of bones due to lack of calcium and phosphate in the diet.

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OA Clinical Manifestations

Symptoms of OA, including pain, stiffness, and decreased mobility.

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Low Back Pain Diagnostics

Diagnostic procedures for serious low back pain, including suspected infection, neurological issues, incontinence, or cancer, include spine X-rays, bone scans, blood tests, CT scans, MRI, EMG/nerve conduction studies, myelograms, and ultrasounds.

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Post-op Hand/Wrist Care

Nursing care for patients recovering from hand or wrist surgery focuses on education, neurovascular checks, pain management, infection prevention, and ADL assistance to promote independence.

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Neurovascular Assessment

Checking circulation, sensation, and movement in the affected area after surgery is crucial for early detection of complications.

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Back Pain Treatment

Most back pain resolves in 4-6 weeks with pain relievers, rest, and avoiding strain. Sitting should be limited to 20-50 minutes. Avoiding absolute bed rest and resuming activities are key.

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Bursitis/Tendonitis

Inflammation of the fluid-filled sacs (bursae) or muscle tendons, often due to repetitive motion or overuse, causing shoulder pain.

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Proper Lifting Posture

Maintaining a straight back, using leg muscles for lifting, and keeping items close to the body are essential for avoiding back injury.

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Carpal Tunnel Syndrome

A common condition affecting the wrists and hands, often causing tingling, numbness, and pain. The Tinel sign is a test used to diagnose it.

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Loose Bodies (Joint)

Pieces of articular cartilage or bone that detach and can cause joint pain and restricted movement.

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Tinel Sign

A neurological test for carpal tunnel syndrome, where lightly tapping the median nerve in the wrist assesses for tingling, numbness, and pain.

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Impingement Syndrome

Inflammation of the rotator cuff or subacromial bursa caused by repetitive overhead arm movements or trauma, resulting in shoulder pain and limited range of motion.

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Dupuytren Contracture

A progressive, inherited condition making fingers bend in toward the palm, mainly affecting the fourth and fifth fingers.

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Carpal Tunnel Syndrome

Compression of the median nerve at the wrist, commonly from repetitive hand movements, leading to numbness, tingling, and pain in the hand.

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Pain Management (Post-op)

Important after surgery, encompassing medication, elevation, and ice/cold application to control pain.

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Bursitis and Tendonitis

Inflammation of bursae (fluid-filled sacs) or tendons, causing pain around joints, especially in the upper extremities.

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Infection Prevention

Measures taken to prevent post-operative infections of hand or wrist surgeries, following standardized protocols.

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Loose Bodies

Fragments of bone or cartilage causing joint pain and stiffness in joints like shoulders and knees.

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Impingement Syndrome

Pain and inflammation in the shoulder, caused by structures rubbing together with movement.

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ADL Assistance

Providing support and guidance for patients to perform daily activities while recovering from hand/wrist surgery to regain independence.

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Ambulatory Procedures

Surgeries that do not require an overnight hospital stay, allowing patients to go home the same day.

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Sitting Limit

Limit sitting time to 20 to 50 minutes. Based on comfort level, avoid prolonged sitting.

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Spinal Metastasis Symptoms

Pain, weakness, gait problems, and loss of bowel/bladder control.

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Soft Tissue Injury: Contusion

Blunt force injury causing bleeding into soft tissue, often black and blue.

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Sprain Grade 3

Complete ligament tear or rupture.

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Closed Fracture

Fracture with no break in the skin.

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RICE Treatment

Rest, Ice, Compression, Elevation for soft tissue injuries.

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Fracture Reduction

Bringing broken bone fragments back into proper alignment.

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Post-operative Musculoskeletal Care

Care after surgery for skeletal injuries, including explaining treatment and expected outcomes.

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Study Notes

Musculoskeletal Function

  • The body has 206 bones.
  • Bones provide structure, support, and mobility.
  • They facilitate blood return to the heart.
  • They store minerals.
  • Bone cells include osteoblasts (formation), osteocytes (maintenance), and osteoclasts (destruction and remodeling).
  • Bone formation (ossification, osteogenesis) begins before birth.
  • Stress, vitamin D, parathyroid hormone, calcitonin, and blood supply regulate bone formation and maintenance.
  • Bone healing stages: Hematoma, fibrocartilaginous callus, bony callus, and remodeling.
  • Estrogen enhances bone formation, while testosterone supports bone growth and muscle mass.
  • Growth hormone and insulin-like growth factor I (IGF-I) are essential for bone modeling in youth. Low levels can lead to osteopenia with aging.

Joints

  • Joints are articulations where two or more bones connect.
  • Synarthrosis joints are immovable.
  • Amphiarthrosis joints allow limited movement.
  • Diarthrosis joints permit free movement.
  • Joint types include ball and socket, hinge, saddle, pivot, and gliding.
  • Other joint structures include joint capsules, ligaments, tendons, and bursae.
  • Fractures heal in stages: hematoma formation, inflammation, fibrocartilaginous callus formation, bony callus formation, and remodeling.

Muscles

  • Muscle contraction is initiated by electrical stimulation.
  • Myosin and actin filaments slide, causing contractions.
  • Isotonic contractions involve muscle shortening without changing tension.
  • Isometric contractions involve maintaining muscle length while increasing tension.
  • ATP (adenosine triphosphate) is the energy source for muscle contraction.
  • In intense exercise, glucose is converted to lactic acid, which can lead to muscle fatigue.
  • Myoglobin helps transport oxygen in muscle cells.
  • Muscles with more myoglobin (red muscles) contract slowly and strongly, while those with less (white muscles) contract quickly.
  • Muscle tone is a slight contraction that maintains posture.

Common Musculoskeletal Disorders

  • Pain, tenderness, and altered sensations are common symptoms.
  • Pain can be described as dull, sharp, sore, and related to bone, muscle, or joint issues.
  • Rest typically alleviates musculoskeletal pain; activity-related pain may indicate underlying issues.
  • Nursing assessments evaluate pain, body alignment, joint symmetry, inflammation, and external pressures.
  • Conditions like osteoporosis, osteoarthritis, and fracture risk can be assessed using the FRAX tool.
  • Common spinal abnormalities include kyphosis (hunchback) and lordosis (swayback).
  • Scoliosis is an abnormal lateral curve in the spine.

Diagnostic Tests

  • Radiographs, CT scans, MRI, arthrography, bone densitometry, bone scans, arthroscopy, arthrocentesis, EMG, biopsy, and laboratory studies are used for diagnosis.
  • These tests aid in identifying bone structure/tissue changes, tumors, injuries, fractures, and bone mineral density.

Nursing Interventions

  • Nursing interventions encompass patient education and management of pain or discomfort.
  • Pain management involves medication, splinting, elevating affected areas to reduce swelling, and assistive devices.
  • Interventions for specific conditions may involve specialized care.
  • Treatment will vary depending on the condition, and the specific intervention will be targeted to the condition.

Fracture Risk

  • The fracture risk assessment tool (FRAX) predicts the 10-year risk of fractures.
  • The risk of fractures is primarily affected by factors like age, sex, prior fractures, family history, body weight, smoking, and alcohol consumption and other specific health issues and diseases

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Description

Explore the essentials of the musculoskeletal system, including bone structure, function, and the types of joints. This quiz covers the roles of different bone cells, the process of ossification, and healing stages, along with joint classifications and their movements. Test your knowledge on how these components work together to support the human body.

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