The nose is divided into right and left halves called the ________
A) nasal apertures
B) nasal vestibules
C) nasal cavities
D) nasal septa
E) nasal fossae
E
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Which portion of the brainstem is continuous with the spinal cord?
A. medulla oblongata B. midbrain C. pons D. thalamus E. cerebral peduncles
Which of the following statements concerning the embryonic circulatory system is true?
A. The heart develops from four endothelial tubes. B. Blood vessels form from blood islands. C. An opening in the interatrial septum is called the sinus venosus. D. The bulbus cordis becomes the sinoatrial node (the adult pacemaker). E. There is an opening in the interventricular septum.
Which of the following occurs with hypokalemia?
A. Cells are hyperpolarized. B. The resting membrane potential is more positive. C. Cells are more excitable. D. There is more diffusion of potassium into the cells. E. Cells are partially depolarized.
Smooth endoplasmic reticulum has ribosomes and rough endoplasmic reticulum does not.
Answer the following statement true (T) or false (F)