Which of the following precursor cells give rise to agranular leukocytes?
a) Proerythroblast
b) Megakaryoblast
c) Lymphoblast
d) Myeloblast
e) None of the selections are correct.
c
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Which of these bones does not contribute to the region known as the pterion?
A. Frontal B. Sphenoid C. Occipital D. Parietal E. Temporal
While sitting at your desk, you drop your pencil onto the floor. You bend over to pick up the pencil. In order to straighten up and continue your exam, you must use which of the following muscles?
A. Erector spinae B. Tibialis anterior C. Tibialis anterior and semimembranosus D. Semimembranosus E. Extensor hallucis longus
Heidi sustained damage to her spinal cord in a car accident. She has no difficulty moving her arm, but has lost some sensation in her arm. What part of her spinal cord must have been injured?
A) anterior horn of spinal gray matter B) posterior horn of spinal gray matter C) corticospinal tract of spinal white matter D) lateral horn of spinal gray matter
The pressure in the pleural cavity is called the _______.
A. intrapleural pressure B. intrapulmonary pressure C. interpleural pressure D. transpulmonary pressure