A neuron's membrane contains more potassium leak channels than sodium leak channels
Indicate whether this statement is true or false.
TRUE
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An over-production of cortisol causes ________
A) Addison's disease B) Hyperpituitarism C) Cushing's syndrome D) Graves' disease
Intramembranous ossification begins with differentiation of ________ cells
A) osteoclast B) osteolytic C) mesenchymal D) osteoblast E) osteocyte
The sodium-potassium pump moves both potassium and sodium down their concentration gradients, from higher to lower concentration
Indicate whether this statement is true or false.
Neural signals about oxygen levels in the blood come from
A. osmoreceptors in the hypothalamus. B. oxygen receptors in the primary respiratory center. C. chemoreceptors in the carotid and aortic bodies. D. baroreceptors in the aorta and carotid arteries. E. hemoglobin detectors in the pons.