The X-rays can not pass through the bones because of the presence of:

The most powerful anticoagulant known, which inactivates factors IX, X, XI, and XII and is secreted by mast cells is:

Which humero-chemical factor is most important and highly influence the respiration rate?

If little or no stress is applied to bone, what eventually happens to it?

Which muscle causes the lens to focus on close objects?

Name the cells that make the first line of defense in body against infections

Name the organ that releases erythropoietic factor, which converts the plasma proteins into erythropoietin

Retinene, the visual pigment precursor, is synthesized from what vitamin?

In regenerative anemia, the bone marrow responds to any decrease in number of RBCs, and release increased number of immature red blood cells in blood.

A comminuted fracture is defined as one with: