An increase in the heart rate is termed as:_________?

A. Bradycardia
B. Tachycardia
C. Trachybradycardia
D. Non of these

Submitted by: Babar Ali Kunbhar

In tachycardia, an abnormal electrical impulse starting in the upper or lower chambers of the heart causes the heart to beat faster. Tachycardia is the medical term for a heart rate over 100 beats per minute. There are many heart rhythm disorders (arrhythmias) that can cause tachycardia

Related Mcqs:

A decrease in the rate of beating of heart is called__________?
A. Bradycardia
B. Tachycardia
C. Braditachycardia
D. Non of these

Submitted by: Babar Ali Kunbhar
If the concentration of enzyme is kept constant and amount of substrate is increased a point is reached where increase in substrates concentration does not affect the reaction rate because of____________________?
A. Enzymes get denatured at higher substrate conc
B. Rate of reaction is indirectly proportional to substrate concentration at this point
C. All the active sites on enzyme molecule are occupied
D. None of these
If enzyme concentration is low than substrate pH and temperature values are equal to requirement then which of the following will increase rate of reaction____________________?
A. increase in concentration of enzyme
B. increase in concentration of substrate
C. increase in pH
D. increase in temperature
mitochondria in heart muscles are nearly_____________?
A. 400
B. 375
C. 350
D. 325

Submitted by: Muhammad Nawaz
Single circuit heart is found in_________?
A. Fishes
B. Amphibians
C. Reptiles
D. Mammals
The blood vessel carrying blood from the lungs to the heart is_______?
A. Hepatic artery
B. Pulmonary artery
C. Pulmonary vein
D. Renal artery

Submitted by: Malik Asghar Hussain
When the Left Ventricle in the human heart contracts, the blood moves to the_________ ?
A. Brain
B. Pulmonary Artery
C. Aorta
D. Lungs

Submitted by: Malik Asghar Hussain
A single heart beat involves ________ stages.
A. 1
B. 2
C. 3
D. 4

Submitted by: Muzaffar
Heart beats about ________ times in one’s life.
A. 2.8 Billion
B. 3.7 Billion
C. 4.2 Billion
D. Infinite

Submitted by: Muzaffar
heart beats 72 times in a male and _________Times in female in one minute.?
A. 60 Times
B. 70 Times
C. 80 Times
D. 85 Times

Submitted by: Imtiaz Ali Noonari