The uterine enlargement that occurs during the first 10 weeks of pregnancy is mostly the result of
A. growth of the conceptus from a zygote to a fetus.
B. amniotic fluid production as well as growth of uterine muscle and the placenta.
B
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Spongy bone is made up of a network of bony rods or plates called
A) trabeculae. B) osteons. C) lamellae. D) canaliculi. E) perforating canals.
Towards the end of erythropoiesis in the bone marrow, a red blood cell loses its nucleus and becomes a
a) proerythroblast. b) megakaryocyte. c) progenitor cell. d) mature erythrocyte. e) reticulocyte.
The only point of articulation between the pectoral girdle and the axial skeleton is at (the)
A) acromion process of the scapula. B) coracoid process of the scapula. C) acromial end of the clavicle. D) sternal end of the clavicle. E) None of the answers are correct.
Autonomic function receives input from all these except ________.
A. hypothalamus B. cerebral cortex C. medulla oblongata D. spinal cord E. somatic branch of the peripheral nervous system