During repolarization, ________ ions rush out of the ventricular contractile cell.
A) sodium
B) calcium
C) magnesium
D) selenium
E) potassium
E) potassium
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Mesenchyme is found only in the umbilical cord
Indicate whether this statement is true or false.
The potential across a cell membrane has changed drastically, from -90 mV to +30 mV. In other words,
A. there is no relative charge difference between the inside and the outside of the cell. B. the resting membrane potential has been established. C. there is a positive charge on the inside of the cell, relative to the outside. D. there is a negative charge on the inside of the cell, relative to the outside.
With respect to divergence of axons in the sympathetic division of the ANS, one axon innervates fewer than four ganglionic cell bodies.
Answer the following statement true (T) or false (F)
Define open fracture and closed fracture
A) An open fracture is one where the bone pierces the skin; a closed fracture is one where no bone pierces the skin. B) An open fracture is one where no bone pierces the skin; a closed fracture is one where bone pierces the skin. C) An open fracture is one where the bone remains in alignment; a closed fracture is one where the bone is no longer in alignment. D) An open fracture is one where the bone is no longer in alignment; a closed fracture is one where the bone remains in alignment. E) An open fracture is one where the break is along the long axis of the bone; a closed fracture is one where the break is not along the long axis of the bone.