Which of the cardiovascular system's circuits has deoxygenated blood in its arteries?
A. Pulmonary circuit
B. Visceral circuit
C. Coronary circuit
D. Systemic circuit
A
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The sodium-potassium ion exchange pump
A) must reestablish ion concentrations after each action potential. B) transports sodium ions into the cell during depolarization. C) transports potassium ions out of the cell during repolarization. D) moves sodium and potassium opposite to the direction of their electrochemical gradients. E) depends on a hydrogen gradient for energy.
Synovial fluid moistens and lubricates the cartilaginous surfaces in a joint
Indicate whether the statement is true or false
Select all of the characteristics of connective tissue. (Check all that apply.)
A. Involved in delivering nutrients to the tissue B. Separate tissues from each other C. Create new cells from other tissues D. Bind other tissues and organs together
The white crescent at the proximal end of the nail plate is called the ________.
Fill in the blank(s) with the appropriate word(s).