The amount of blood in the human body is about ____ liters
a. 2
b. 5
c. 10
d. 12
e. 15
B
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What technique is used to best control a cat by using the dominant hand to grasp the skin over the neck?
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. The loss of potassium ions from the cell during the repolarization stage restores a membrane potential of -90 mV. 2. The entry of acetylcholine into a muscle cell through ligand-gated ion channels depolarizes the sarcolemma locally. 3. ATP is required for a power stroke to be repeated during the contraction cycle.
Which statement about nitric oxide is incorrect?
a. It increases the total peripheral resistance by its action on arteriolar smooth muscle. b. It relaxes digestive tract smooth muscle. c. It is the direct mediator of penile erection. d. It is released as "chemical warfare" by macrophages of the immune system. e. It serves as a novel type of neurotransmitter in the brain.
The mechanism of action of lipid-soluble hormones is generally via the stimulation or inhibition of specific DNA-dependent protein synthesis
Indicate whether the statement is true or false.