L2 Flashcards
Axial skeleton review:
Skull, Vertebral column, and pelvis
-provides anchorage to the appendicular skeleton and protects vital organs
Vertebral column: Cervical (7), Thoracic (12), Lumbar (5), Sacrum, Coccyx
Pelvis: Ilium (2 elephant bones), Ischium (2 sit bones), Pubis (2 inner bones)
Upper Appendicular Skeleton Review
Clavicle, Scapula, Humerus, Radius and Ulna, Carpals (8 in wrist), Metacarpals (5 palm bones), Phalanges (14 fingers)
Lower Appendicular Skeleton Review
Femur, Patella, Tibia and Fibula, Tarsal (7 ankle and foot bones), Metatarsals (5 forefoot), Phalanges (14 toes)
Intersection of bones develop what?
Articulations
-the motion observed occurs at the joint, not within the segments
Linear Motion
Examination of the motion of the centre of gravity or the path of a projected object
Angular Motion
Of the body, an object, or a segment can take place around an axis running through a joint, a centre of gravity, or about an external axis
3 Types of Joints
Diarthrodial (synovial)
Synoarthrodial (fibrous)
Amphiathrodial (cartilaginous)
Diarthrodial (synovial) Joints
Low friction, high resistance to wear and tear
Types: Plane/ gliding. Hinge, Pivot, Condylar, Ellipsoid, Saddle, Ball and Socket
Stability can be provided by the structure, surrounding ligaments, capsule, tendons, gravity
Joint Positions: Closed vs Loose packed positions
Closed: maximum contact between surfaces, maximum compression, forces travel through the joint -ex) full extension of knee
Loose: all other joint positions, less contact area between surfaces
Synoarthrodial (fibrous) Joints
Bones held together by fibrous articulations
-allows for little or no movement
Ex) sutures in skull
Amphiarthrodial (cartilaginous) Joints
Hyaline cartilage or fibrocartilage holds joints together
-little movement
Ex) in vertebral discs
Simple, Compound, Complex joints
Simple: two articulating surfaces ex) Hip
Compound: three or more articulating surfaces ex) Wrist
Complex: two surfaces with articulated disc or fibrocartilage ex) Knee
Anterior vs Posterior Tilt
Anterior anterior movement of the iliac crest
Posterior: posterior movement of the iliac crest
Acetabulofemoral Articulation
Femur and Pelvis (hip)
Knee (Tibiofemoral) Joint
Femur, Tibia