MSK Flashcards
(320 cards)
What are the functions of the skeletal system?
Support
Protect
Movement
Mineral homeostasis
Blood cell production
Triglyceride storage
Where does red blood cell production occur
Red bone marrow
Where is triglyceride storage
Yellow bone marrow
What are the parts of a long bone
Diaphysis- shaft
Epiphyses - ends
Metaphyses - growth plate between shaft and end of long bone
What cells are a part of the microscopic structure of the bone
Osteoblasts - bone BUILDING
Osteocytes - Maintain by exchanging nutrients and wastes
Osteoclasts - DIGEST bone matrix for normal bone turnover
What are the three types of joints
Fibrous - dense irregular connective tissue
Cartilaginous - bones held together by cartilage
Synovial - have a synovial cavity and many other components such as ligaments
What is an example of fibrous joints
Sutures in the skull
They add strength to the joint
What is an example of interosseous membrane
Between long bones
Radius-ulna
Tibia-fibula
What are sacs that contain synovial fluid
Bursae
What is the function of ligaments
Connects bone to bone
What is the function of tendons
Connects muscle to bone
What is the function of cartilage
Covers ends of bones to absorb shock and reduce friction
(It’s in the join but IS NOT a cartilaginous joint)
What is the function of bursa
Decrease friction in areas where friction can occur with movement
What conducts most movement of bones/body parts and stabilizes body positions
Skeletal muscle
What are the four major function of muscular tissue in the body
Produce body movement
Stabilize body position
Store and move substances
Produce heat
What is a decrease in the angle between articulating bones
Flexion
What is an increase in angle between bones
Extension
What is bending beyond 180 degrees such as moving the humerus backwards behind the anatomical plane
Hyperextension
What is movement away from the midline
Abduction
What is movement toward the midline
Adduction
What is movement of distal end in a circle
Circumduction
What is a bone revolving around its own longitudinal axis
Rotation
What is movement of the soles of the foot medially
Inversion
What is movement of the soles of the foot laterally
Eversion