What characteristic does the endolymph of the membranous labyrinth have that is unusual for an extracellular fluid?
A. It has a higher than normal concentration of K+.
B. It is similar to the perilymph that surrounds the membranous labyrinth.
C. It has a higher than normal concentration of Na+.
D. It has a lower than normal concentration of Cl?.
Answer: A
You might also like to view...
An ion is an atom or group of atoms that has
A. a different number of neutrons than most atoms of that element.? B. lost or gained a proton.? C. lost or gained an electron.? D. a biological half-life due to radioactive decay.
Which of the following is not a role of ionic calcium in muscle contraction?
A) triggers neurotransmitter secretion B) promotes breakdown of glycogen and ATP synthesis C) removes contraction inhibitor D) activates epinephrine released from adrenal gland
Joey develops a medical condition that decreases his blood viscosity. Assuming no other change (e.g., no compensatory reflex), what happens to his blood pressure?
What will be an ideal response?
Synapses in which gap junctions allow ions to diffuse quickly from cell to cell are called ______ synapses
A. chemical B. electrical