Average pH of human urine is :
6.0
9.0
3.0
7.0
A.
6.0
Average pH of human urine is 6.0. Normal urine is slightly acidic. The variations in urine pH are closely related to the diet. A high protein diet increases acidity, while a diet composed largely of vegetables increases aikalinity. The colour of the urine is due to pigment urochrome.
'P' wave of ECG occurs before the:
onset of ventricular ejection
end of atrial contraction
begining of atrial contraction
none of the above
Which of the following layer of heart wall consists of cardiac muscles ?
Endocardium
Myocardium
Epicardium
All of these
Which of the following is the character of the bile juice?
It has trypsin
It has no enzyme
It has enterogasterone
It has tripophnomide
Blood pressure increases and heart rate decreases in response to :
exercise
haemorrhage
exposure to high altitude
increased intracranial pressure
