which of the following are macronutrients?
a) water, lipid , fibre, protein
b) water, vitamins, minerals, fibre
c) vitamins, minerals, protein
d) water, lipid, carbs, protein
select the correct sequence of the wave of excitation of the heart contraction?
a) SA node, purkinje fibers, AV node, bundle of His
b) AV node, purkinje fibres, AV node, bundle of His
c) SA node, AV node, bundle of His, purkinje fibres
d) AV node, SA node, bundle of His, purkinje fibres
The type of blood and main blood vessel the the systemic and pulmonary circulatory systems are , respectively?
a)oxygenated, pulmonary vein, deoxygenated, aorta
b)deoxygenated, vena cava, oxygenated pulmonary vein
c)oxygenated, aorta, deoxygenated pulmonary artery
d)deoxygenated, pulmonary artery, oxygenated vena cava
physiological adaptations resulting from regular, cardiovascular exercise may include
a)increased stroke volume, decreased stroke volume, increased resting heart rate, decreased cardiac output
b) increased stroke volume, increased resting heart rate, decreased cardiac output
c)increased stroke volume, decreased resting heart rate, unchanged cardiac output
d) decreased stroke volume, increased resting heart rate, unchanged cardiac output
what are the four types of bone?
a) long, short, flat, irregular
b) long, short, compact, spongy
c) compact, spongy, flat, irregular
d) flat, irregular, long, spongy