How do parasympathetic neural signals affect the working of the heart?

1. Reduce both heart rate and cardiac output

2. heart rate is increased without affecting the cardiac output

3. Both heart rate and cardiac output increase

4. Heart rate decreases but cardiac output increases

The neurocenter for the activity of the Heart is located in

1. Pons

2. midbrain

3. medulla oblangata

4. cerebrum

Medulla Oblangata regulates the Cardiac activity via

1. CNS

2. ANS

3. PNS

4. CNS and PNS

The sympathetic nerves give _______ neural signals to heart and increases the _______.

1. stimulatory, ventricular contraction

2. inhibitory, stroke volume

3. stimulatory, ventricular relaxation

4. inhibitory, ventricular relaxation

What is the effect of parasympathetic neural signals on Heart Activity?

1. decreases the rate of heart beat

2. decreases the speed of conduction of action potential

3. decreases the cardiac output

4. all of these

The hormonal regulation of Cardiac output is

1. mediated by adrenal cortex

2. mediated by adrenal medulla

3. mediated by thyroid

4. mediated by pineal

Sympathetic nervous system induces:

1. heartbeat

2. secretion of digestive juice

3. secretion of saliva

4. All of the above

The decrease in the rate of heartbeat, speed of conduction of action potential and thereby the cardiac output is under the control of

1. Neural signals through the sympathetic nerves

2. Neural signals through the parasympathetic nerves

3. Adrenaline

4. ANS 

Human heart is

1.  Myogenic

2.  Neurogenic

3.  Venous

4.  Both (1) and (2) 

Given below is the ECG of a normal human. Which of its components is correctly interpreted below?

1.  Peak P and Peak R together   -   Systolic and diastolic blood pressure

2.  Peak P       -       Initiation of left atrial contraction only

3.  Complex QRS    -      One complete pulse

4.  Peak T         -          Initiation of total cardiac contraction