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CDC 1-2

Synovial Joints

Ball-shaped end of one bone fits into the socketshaped end of another bone. Rotational movement in all directions is possible. Ex. Shoulders Hips Ball and socket
Rounded convex surface of one bone end fits into the concave end of another bone. Movement in one direction only is possible. Ex. Elbows Fingers Toes Hinge
Cylinder-shaped end of one bone fits inside the ringshaped end of another bone. Ex. Rotational movement. Proximal ends of the radius and ulna. Neck (turning the head from side-to-side). Pivot
Proximal ends of the radius and ulna. Neck (turning the head from side-to-side). Ex. Wrists and ankles Gliding
Oval-shaped end of one bone fits inside the curved end of another bone. Possible to move in most directions except rotational. Ex. Finger knuckles Condyloid
Combined concave and convex (wavy) bone ends are joined. Varieties of movements are possible. Ex. Thumb where it joins with the hand Saddle
______ of the nervous system stimulate muscle action Neurotransmitters
The process of blood cell formation is referred to as _____. hematopoiesis
A soft mass of tissue called _____ is found within the medullary cavities of some bones. _____ is essential to the production of new blood cells. Marrow
As a person ages, much of the red marrow is gradually replaced by _____. _____ marrow serves mostly as a fat storage tissue and does not play a major role in blood cell production. Yellow
______ serves to assist in the formation of erythrocytes, leukocytes and thrombocytes in infants and children. This type of marrow is _____ because of the hemoglobin content of the erythrocytes. Red marrow
Created by: jhey33
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