Which of the following is TRUE of aging of the cardiovascular system?
A) The cardiac conduction system remains unaffected unless damaged by myocardial infarction.
B) Thickening of the aorta makes aneurysm due to sudden deceleration less likely than in younger patients.
C) The elderly in hemorrhagic shock may not exhibit tachycardia.
D) The left ventricle atrophies due to increased systemic vascular resistance.
Question 2
Benzodiazepines are safer than barbiturates in seizure patients because:
A) the effect of benzodiazepines is limited by the amount of endogenous GABA in the CNS.
B) benzodiazepines cannot cause hypotension or respiratory depression.
C) the therapeutic dose of barbiturates is very close to the lethal dose.
D) benzodiazepines cause a counteraction by inducing high levels of dopamine in the CNS.
Spina bifida. (A) Spina bifica occulta; the vertebra is not complete, but there is no protrusion of
Respiratory system
Cardiac
A typical purified water system
How to solve a linear system by the substitution method
Overview of the Solar System