the musculoskeletal systemnur.uobasrah.edu.iq/images/pdffolder/the musculoskeletal... · 2019. 1....
TRANSCRIPT
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THE MUSCULOSKELETAL
SYSTEM
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Objectives
Objectives
•Name the parts of the
musculoskeletal system and discuss
the function of each part.
•Define combining forms used in
building words that relate to the
musculoskeletal system.
•Identify the meaning of related
abbreviations.
After studying this chapter, you will be able to:
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Objectives Part 2 Objectives CONT’D
•Name the common diagnoses,
laboratory tests, and clinical
procedures used in treating the
musculoskeletal system.
•Define the major pathological
conditions of the musculoskeletal
system.
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Objectives Part 3 Objectives CONT’D
•Define surgical terms related to the
musculoskeletal system.
•List common pharmacological
agents used in treating the
musculoskeletal system.
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Structure and Function Forms the body framework
Enables the
body
to move
Protects and
supports
internal
organs
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Bones Bones
•Composed of
osseous tissue
•Consists of a
rich supply of
blood vessels
and nerves
•Osteoblasts are
bone-forming cells
•Osteoclasts are
responsible for
reabsorbing dead
bone tissue
•Bone cells are called osteocytes
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Ossification Bones
The development of osteocytes and
the hardening process is called
ossification.
calcium
phosphorus
vitamin D
Ossification depends on:
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Common Bone Categories Bones
The adult skeleton has 206 bones.
Common Bone Categories
•Long bones
(Femur)
•Short bones
(Wrist bones)
•Flat bones
(Skull)
•Irregular bones
(Vertebrae)
•Sesamoid bones
(Kneecap)
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Parts of Long Bones Bones
Parts of long bones:
•The shaft is the longest portion also
called the diaphysis.
•The ends are called the epiphysis.
•Space between the epiphyses and
the diaphysis is called the
metaphysis.
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Parts of Long Bones Part 2
•Articular cartilage is a
thin flexible substance
that provides protection
at movable points.
•Medullary cavity
contains yellow bone
marrow.
•Red bone marrow is
found in infant bones and
the flat bones of adults.
Parts of a long bone
Femur
Distal
epiphysis
Diaphysis
Proximal
epiphysis
Epiphyseal disks
Spongy bone Articular
cartilage
Space
containing
red marrow
Compact
bone
Medullary
cavity
Yellow
marrow
Periosteum
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Cranial Bones Cranial
Bones •Temporal
•Frontal
•Sphenoid
•Occipital
•Parietal
•Ethmoid
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Sinuses Sinuses are cavities that reduce the
weight of a bone.
•Frontal sinuses
•Ethmoid sinuses
•Maxillary sinuses
•Sphenoid sinuses
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Facial Bones Facial Bones
•Lacrimal bone
•Ethmoid bone
•Nasal bones Zygomatic bone
Maxillary bones
Mandible
Palatine bone
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Spinal Column Spinal Column
Consists of
five sets of
vertebrae
•Cervical = 7
•Thoracic = 12
•Lumbar = 5
•Sacrum = 5
•Coccyx = 1
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Bones of the Chest Bones of the Chest
•Clavicle
•Scapula
•Sternum
•True ribs
•False ribs
•Floating ribs
The chest cavity is also referred
to as the thoracic cavity.
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Bones of the Pelvis Bones of the Pelvis •ilium
•ischium
•pubes
•pelvic cavity
The pubic symphysis is where both
pubic bones join.
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Bones of the Extremities Bones of the Extremities
Upper Arm
•Humerus
Lower Arm
•Ulna
•Radius
Hand and Fingers
•Carpals (wrist)
•Metacarpals (palm)
•Phalanges (fingers)
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Bones of the Extremities Part 2 Bones of the Extremities (Cont’d)
Upper Leg
•Femur
Lower leg
•Tibia (shin)
•Fibula
•Patella (kneecap)
Feet and Toes
•Tarsals
•Calcaneus (heel)
•Metatarsals
•Phalanges
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Joints
Joints
(articulations)
Amphiarthroses
•Moves slightly
Diarthroses
•Moves freely
Synarthrose
s •No movement
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Tendons and Ligaments
Tendons are bands of fibrous tissue
that connect muscles to bone.
Ligaments connect bones to other
bones.
A joint lubricator (synovial
fluid) helps synovial joints
move easier.
Movement occurs at joints with the
assistance of muscles, tendons and
ligaments.
Tendons and Ligaments
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Muscles Muscles
Muscles contract (shorten) and
extend to provide body movement.
Types of Muscles
•Voluntary (skeletal)
•Involuntary (smooth or
visceral)
•Cardiac
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Muscles - Fascia Muscles
Most muscles are
covered by a band
of connective tissue
called fascia, that
supports the
muscle.
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Muscles – Origin or Insertion Lift up your right forarm to flex your
bicep brachii as if making a fist.
Identify the origin and insertion
attachment by agreeing with one of
the following statements:
The radius is the origin and the
scapula is the insertion.
The scapula is the origin and the
radius is the insertion.
---OR---
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Combining Forms Match the following combining forms
and meanings.
ankyl (o)
arthr (o)
brachi (o)
calcane (o)
heel
bent
joint
arm
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Combining Forms Part 2 Match the following combining forms
and meanings.
carp (o)
cephal (o)
chondr (o)
dactyl (o)
kyph (o)
cartilage
hump
head
wrist
fingers, toes
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Combining Forms Part 3 Match the following combining forms
and meanings.
my (o)
myel (o)
pod (o)
oste (o)
phalang (o)
foot
finger or toe bone
muscle
bone
spinal cord; bone
marrow
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Combining Forms Part 4 Match the following combining forms
and meanings.
rachi (o)
scoli (o)
spondyl (o)
ten (o)
uln (o)
curved
vertebra
spine
ulnar
tendon
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Diagnostic, Procedural, and
Laboratory Tests Medical specialists that treat
disorders of the musculoskeletal
system:
•Orthopedists
•Osteopaths
•Rheumatologists
•Podiatrists
•Chiropractors
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Diagnostic, Procedural, and
Laboratory Tests Pt 2
Performing internal examinations or the
use of x-rays, scans, and radiographs
are often required to diagnose bone and
muscle ailments.
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Diagnostic, Procedural, and
Laboratory Tests Pt 3 •Arthrography
•Arthroscopy
•Diskography
•Computed tomography (CT)
•Myelography
•Electromyogram
•Magnetic
resonance
imaging (MRI)
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Diagnostic, Procedural, and
Laboratory Tests Pt 4 Laboratory tests measure the levels
of substances found in some
musculoskeletal disorders.
Common laboratory tests
•Rheumatoid
factor test
•Creatine
phosphokinase
(CPK)
•Calcium
•Phosphorus
•Uric acid
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Diagnostic, Procedural, and
Laboratory Tests Pt 5 Other Tests
Goniometer
-Tests for ROM
Densitometer
-Measures
bone density
Goniometer
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Pathology Causes of musculoskeletal disorders
•Birth defects
•Injury
•Degenerative disease
•Systemic disorders
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Pathology Part 2
Types of fractures
Complex Incomplete Comminuted Greenstick
Simple (closed) Compound (open) Colles’ Impacted
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Pathology Part 3 •Injury or trauma to the joints or
muscle may cause a sprain.
•Overuse of a muscle may cause a
strain.
Other conditions:
•Tendinitis
•Dislocation
•Subluxation
•Osteoporosis
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Pathology Part 4 Musculoskeletal Pain and Discomfort
•Osteoalgia
•Myalgia
•Arthralgia
•Arthritis
•Tetany
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Surgical Terms
Almost any major part of the
musculoskeletal system can now be
surgically repaired.
Supportive devices
•Cast
•Splints
•Traction
•Prosthetic devices
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Surgical Terms Part 2 Reduction is the return of a part to
its normal position.
Osteoplasty is repair of a bone.
Tenotomy is the cutting into a
tendon to repair a muscle
(myoplasty).
Arthroplasty is repair of a joint.
Laminectomy is removal of part of
a spinal disk.
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Pharmacology
Most medications treat symptoms
and not the cause of musculoskeletal
discomfort.
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Pharmacology Part 2 Common medications for the
Musculoskeletal System
•Analgesics
•Steroids
•Muscle Relaxants
•NSAIDS
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Apply Your Knowledge Mrs. Jones is concerned
with the “soft spots” she
feels on her baby’s head.
You realize the medical term
for these “soft spots” is:
A. Fontanelle
B. Fissure
C. Foramen
A. Fontanelle
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Apply Your Knowledge Part 2 Head & Trunk
Arms & Legs
Identify the axial and
appendicular portions of the
skeleton.
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Apply Your Knowledge Part 3 Mary is complaining of headache,
stuffy nose and pressure with facial
discomfort. Her physician tells her
she has allergies. Which of the
following conditions might she be
experiencing?
A. fracture of her vomer
B. sinusitis
C. stroke
B. sinusitis
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Apply Your Knowledge Part 4 Relieves pain
Reduces swelling
Relieves stiffness
1
2
3
A. steroids
B. analgesics
C. muscle
relaxants
Match the correct medication
with its action.