The amount of oxygen released from oxyhemoglobin increases when
A) carbon dioxide concentration decreases.
B) carbon dioxide concentration increases.
C) blood becomes more alkaline.
D) temperature decreases.
B
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Total peripheral resistance is related to all of the following except the
A) length of a blood vessel. B) osmolarity of interstitial fluids. C) turbulence. D) blood viscosity. E) blood vessel diameter.
Carbohydrate and fat pools are oxidized directly to produce cellular energy, but amino acid pools must first be converted to a carbohydrate intermediate before being sent through cellular respiration pathways
Indicate whether the statement is true or false
Migraine results from
A) a neurotransmitter deficiency. B) release of calcitonin gene-related peptide from the trigeminal nerves at the base of the brain, in response to a spreading wave of excitation followed by lack of response from the cortex. C) release of an abnormal form of beta endorphin from the trigeminal nerves at the base of the brain, in response to cortical stimulation. D) not eating enough chocolate, which causes a spreading effect in the cortex.
What can help prevent clots from forming in undamaged blood vessels?
A. Smooth endothelium of blood vessel walls B. Prothrombin activator C. Heparin from basophils and mast cells D. Both heparin and a smooth endothelium are correct.