What do fibroblasts contribute to bone repair?
A) Fibroblasts form new collagen fibers to bridge the gap between bone fragments.
B) Fibroblasts secrete hyaline cartilage to form a soft callus.
C) Fibroblasts direct the transition from primary bone to secondary bone.
D) Fibroblasts form the hematoma that involves a mass of blood cells.
Answer: A
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All target cells
A) have hormone receptors. B) can respond to chemical signals. C) secrete hormones. D) have hormone receptors and can respond to chemical signals. E) secrete hormones and have hormone receptors.
Which term describes bending a body part anteriorly?
A. Abduction B. Extension C. Flexion D. Adduction
The entire area through which the sensitive ends of the receptor cells are distributed is the
A. stimulus area. B. sensory field. C. transducer field. D. receptive field. E. adaptative radius.
In this image showing connective tissue components, what structure does number 1 indicate?
A. Mesenchymal cell B. Macrophage C. Fibroblast D. Extracellular matrix E. Adipocyte