The cell that is the progenitor of all the types of blood cells is called the
A) megakaryocyte.
B) committed progenitor cell.
C) progenitor.
D) reticulocyte.
E) pluripotent hematopoietic stem cell.
E) pluripotent hematopoietic stem cell.
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In a herniated disc, the ring of fibrocartilage called the ________ ruptures and the ________ oozes out
A) nucleus pulposus; lamina B) lamina; nucleus pulposus C) nucleus pulposus; anulus fibrosus D) anulus fibrosus; nucleus pulposus E) anulus fibrosus; body
Which prenatal structure forms the ascending aorta and pulmonary trunk?
A. Truncus arteriosus B. Conus cordis C. Primitive ventricle D. Sinus venosus E. Primitive atrium
_____________ is the division of the cytoplasm during cell division
Fill in the blank with correct word.
Fine hairs covering the general surface of the body are
A) intermediate hairs. B) terminal hairs. C) heavily pigmented hairs. D) vellus hairs. E) None of the answers are correct.