Joints and Muscles Pt. 1 Flashcards
How many types of joints are there?
3
Type of joint with no movement, connected with fibrous tissue
Fibrous
Type of joint that moves a small amount, united by cartilage
Cartilagenous
Type of joint that moves freely, fluid filled joint cavity
Synovial
Synovial joints contain _____ (lines the end of long bones)
Articular cartilage
Part of synovial joint that encapsulates joint, holds fluid in
Joint capsule
Part of synovial joint that is a fluid filled sac which helps minimize friction between bone and tendons
Bursa
An immovable joint fixed between bones and connected by fibrous tissue (type of fibrous joint)
Synarthrosis
Examples of Synarthrosis joints
Sutures of skull, scapula, split bones
A slightly moveable joint, limited rocking motions, between intervertebral disks (type of cartilaginous joint)
Amphiarthrosis
Examples of amphiarthrosis joints
Pubic symphysis, fusion of mandible
Type of joints that swivel around the other and perform many types of movements
Synovial joints
Examples of synovial joints
Elbow, hip, and hock
Synovial joint movement: Projection fits into depression, one joint swivels around other, 180°
Hinge Joint
Examples of hinge joints
Fetlock of horse, interphalangeal joints, elbow, stifle of cow
Synovial Joint Movement: Articulating surface is flat, usually between flat bones, extension and flexion, some abduction and adduction
Gliding
Examples of gliding joints
Intercarpal and intertarsal joints of carpus and tarsus, clavicle
Type of synovial joint movement: Rounded or pointed projection fits into ring of bone, can only rotate
Pivot
Types of Pivot Joints
Atlantoaxial joint (between C1 and C2), proximal joint between human radius and ulna (at wrist)
Types of synovial joint movement: Articular surfaces fit together like a rider and a saddle
Saddle
Types of Saddle joints
carpometacarpal articulation of human thumb (where connects to hand)
Types of synovial joint movement: Oval shaped condyle fits into elliptical cavity
Ellipsodial
Examples of ellipsoidal joints
Distal end of human radius with carpals, atlas and occipital bones of the skull
Types of Synovial joint movement: Sphere projection that fits into cup like a depression, can perform a wide range of movement
Ball and Socket
Examples of ball and socket joints
Shoulder and hip joints
Tendons attach ______ to _______
muscle , bone
Tendons are a _____ system with dorsal muscle. Muscle contracts and pulls tendon to move bone
Pulley
Attaches bone to muscle which contracts to bend or flex a joint. Located in back of lower limbs (decreases angle of joint)
Flexor tendons
Attaches bone to muscle which contract or straighten to extend a joint (increases angle of joint)
Extensor Tendon
Ligaments attach ______ to _______
Bone, Bone
Ligaments stabilize…..
Joints
Organization of muscle
Muscle belly, Muscle fascicles, Muscle Fiber, Myofibril, Myofillaments (actin and myosin)