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13 musculoskeletal prefixes
Medical Terminiology
75
Medical
Not Applicable
10/03/2025

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Term
Arthr/o-:
Definition
Pertaining to a joint.
Term
Burs/o-:
Definition
Burs/o-: Pertaining to a bursa, a small fluid-filled sac that cushions joints
Term
Chondr/o-:
Definition
Pertaining to cartilage
Term
Fasci/o-:
Definition
Pertaining to fascia, the fibrous connective tissue that encloses muscles
Term
Kinesi/o-:
Definition
Kinesi/o-: Pertaining to movement or motion.
Term
My/o-:
Definition
My/o-: Pertaining to muscle
Term
Myel/o-:
Definition
Myel/o-: Pertaining to bone marrow or the spinal cord
Term
Orth/o-:
Definition
Orth/o-: Meaning "straight" or "correct"
Term
Oste/o-:
Definition
Oste/o-: Pertaining to bone
Term
Sarc/o-:
Definition
Sarc/o-: Pertaining to flesh or connective tissue
Term
Spondyl/o-:
Definition
Spondyl/o-: Pertaining to the vertebrae or spine.
Term
Ten/o- or Tendin/o-:
Definition
Ten/o- or Tendin/o-: Pertaining to a tendon.
Term
Vertebr/o-:
Definition
Vertebr/o-: Pertaining to a vertebra or the vertebral column
Term
-algia:
Definition
-algia: Pain
Term
-asthenia:
Definition
-asthenia: Weakness, debility
Term
-clasia / -clasis:
Definition
-clasia / -clasis: To break; surgical fracture
Term
-clast:
Definition
-clast: Destroying cell
Term
-desis:
Definition
-desis: Binding, fixation, fusion
Term
-dynia:
Definition
-dynia: Pain
Term
-genesis:
Definition
-genesis: Forming, producing, origin
Term
-itis:
Definition
-itis: Inflammation
Term
-kinesia:
Definition
-kinesia: Movement
Term
-listhesis:
Definition
-listhesis: Slipping
Term
-lysis: Loosening, destruction, separation
Definition
-lysis: Loosening, destruction, separation
Term
-malacia: Abnormal softening
Definition
-malacia: Abnormal softening
Term
-oid:
Definition
-oid: Resembling
Term
-oma:
Definition
-oma: Tumor
Term
-osis:
Definition
-osis: Abnormal condition, condition
Term
-pathy:
Definition
-pathy: Disease
Term
-penia: Decrease, deficiency
Definition
-penia: Decrease, deficiency
Term
-physis:
Definition
-physis: Growth
Term
-porosis:
Definition
-porosis: Porous condition
Term
-rrhaphy:
Definition
-rrhaphy: Surgical suturing
Term
-rrhexis: Rupture, bursting
Definition
-rrhexis: Rupture, bursting
Term
-scopy:
Definition
-scopy: Visual examination
Term
-trophy:
Definition
-trophy: Nourishment, development
Term
Arthr/o:
Definition
Arthr/o: Joint
Term
Burs/o:
Definition
Burs/o: Bursa (fluid-filled sac near joints)
Term
Chondr/o:
Definition
Chondr/o: Cartilage
Term
Cost/o:
Definition
Cost/o: Rib
Term
Crani/o:
Definition
Crani/o: Skull
Term
Fasci/o:
Definition
Fasci/o: Fascia (band of fibrous tissue)
Term
Femor/o:
Definition
Femor/o: Femur (thigh bone)
Term
Humer/o:
Definition
Humer/o: Humerus (upper arm bone)
Term
Kinesi/o:
Definition
Kinesi/o: Movement
Term
Lamin/o:
Definition
Lamin/o: Lamina (part of a vertebra)
Term
Ligament/o:
Definition
Ligament/o: Ligament
Term
My/o:
Definition
My/o: Muscle
Term
Myel/o:
Definition
Myel/o: Bone marrow or spinal cord
Term
Oste/o:
Definition
Oste/o: Bone
Term
Patell/o:
Definition
Patell/o: Patella (kneecap)
Term
Pelv/o:
Definition
Pelv/o: Pelvis
Term
Rhabdomy/o:
Definition
Rhabdomy/o: Skeletal (striated) muscle
Term
Scoli/o:
Definition
Scoli/o: Crooked, curved
Term
Spondyl/o:
Definition
Spondyl/o: Vertebra or backbone
Term
Ten/o, Tend/o, Tendin/o:
Definition
Tendonitis (inflammation of a tendon
Term
BDT= Bone Density Testing
Definition
A diagnostic test used to measure bone mineral density (BMD), and determine the strength of bones.
Term
CTS= Carpal Tunnel Syndrome
Definition
A condition caused by compression of the median nerve as it passes through the carpal tunnel in the wrist.
Term
EMG= Electromyography
Definition
A diagnostic procedure that measures the electrical activity of muscles in response to nerve stimulation.
Term
MD= Muscular Dystrophy
Definition
A group of genetic disorders that cause progressive muscle weakness and degeneration. Types of muscular dystrophy include Duchenne Muscular Dystrophy and Becker Muscular Dystrophy
Term
MG= Myasthenia Gravis
Definition
A chronic autoimmune disorder that disrupts communication between the nerves and muscles, leading to muscle weakness.
Term
OA= Osteoarthritis
Definition
A degenerative joint disease caused by the breakdown of cartilage within joints.
Term
OP= Osteoporosis
Definition
A condition characterized by a decrease in bone density, making bones weak, brittle, and more prone to fractures. I t often affects older adults, especially post menopausal women, due to reduced levels of estrogen
Term
OT= Occupational Therapy
Definition
A therapeutic approach focused on enabling individuals to perform meaningful daily activities and tasks despite injury, illness, or disability
Term
PKR= Partial Knee Replacement
Definition
A surgical procedure in which only the damaged part of the knee joint is replaced with a prosthesis
Term
PMR= Polymyalgia Rheumatica
Definition
An inflammatory disorder that causes muscle pain and stiffness particularly in the shoulders, neck, and hips.
Term
RA= Rheumatoid Arthritis
Definition
A chronic auto immune disease that causes inflammation in the joints, leading to pain, swelling, stiffness and deformities.
Term
ROM= Range of Motion
Definition
The extent of movement a joint or muscle can achieve in various directions.
Term
RSD= Repetitive Stress Disorder
Definition
A condition caused by repetitive motion or overuse of muscles, tendons or nerves, leading to pain, inflammation or injury
Term
THR= Total Hip Replacement
Definition
A surgical procedure in which the damaged hip joint is replaced with an artificial prosthesis
Term
TKR= Total Knee Replacement
Definition
A surgical procedure in which the entire knee joint is replaced with a prosthesis
Term
Achilles Tendon

Named After: Achilles, a hero of Greek Mythology
Definition
Achilles Tendon

Named After: Achilles, a hero of Greek Mytology
The tendon that connects the calf muscles(gastrocnemius and soleus) to the heel bone (calcaneus).
Term
Paget's Disease of Bone

Named After: Sir James Paget, A British surgeon
Definition
Paget's Disease of Bone

Named After: Sir James Paget, A Britishsurgeon

A chronic bone disorder causing abnormal bone remodeling, leading to weakened, enlarged, and deformed bones
Term
Baker's Cyst

Named After: William Morrant Baker, a British Surgeon
Definition
Baker's Cyst

Named After: William Morrant Baker, a British Surgeon


A fluid-filled sac located behind the knee, often resulting in joint inflammation or conditions like arthritis
Term
Erb's Palsy

Named After: Wilhelm Erb, A German Neurologists
Definition
Erb's Palsy

Named After: Wilhelm Erb, A German an

A condition caused by injury to the brachial plexus, often during birth or trauma.
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