The __________ deliver(s) blood to the neck, head,
and brain.
a. jugular veins
b. iliac arteries
c. carotid arteries
d. inferior vena cava
e. femoral arteries
Answer: c
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What is the effect of acetylcholinesterase inhibitors on synaptic function?
a. decreases neurotransmission in synapses that require acetylcholine b. increases the release of glutamate in synapses where acetylcholine is absent c. increases neurotransmission in synapses that require acetylcholine d. blocks the release of glutamate in synapses where acetylcholine is present
Rod cells differ from cone cells in that
a. rod cells respond to changes in light intensity, and cone cells detect very dim light. b. rod cells contain pigments which enable the perception of color, and cone cells respond to changes in light intensity. c. rod cells respond to changes in light intensity, and cone cells contain pigments which allow for the perception of color. d. rod cells are responsible for acute daytime vision, and cone cells detect very dim light. e. they are none of these.
When the blood becomes acidic, the kidneys ____
a. produce extra bicarbonate b. reabsorb H+
c. secrete carbon dioxide d. produce water e. remove blood buffers
Contraceptive implants prevent ovulation by releasing progesterone
Indicate whether the statement is true or false