Impulses are conducted towards the nerve cell through the
myelin sheath
dendrons
axons
synaptic nodes
Correct answer is B
No explanation has been provided for this answer.
The following are all examples of a simple reflex action, except
swallowing
sneezing
walking
blinking
Correct answer is C
No explanation has been provided for this answer.
Increasing adrenalin content of the blood would be expected to decrease the flow of blood to the
liver
heart
lungs
brain
Correct answer is B
No explanation has been provided for this answer.
The pulmonary circulation involves movement of the blood to and from the
brain
Kidney
Liver
lungs
Correct answer is D
No explanation has been provided for this answer.
athlete must have eaten food containing lactic acid just before the race
athlete must have injected lactic acid into his blood just before the race
athletes muscle must have carried out anaerobic respiration during the race
athlete must have inhaled lactic acid from the environment during the race
Correct answer is C
No explanation has been provided for this answer.