Punjab 11th Class Biology Circulation Mcqs Test Online

• <<
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• >>

 0%

Question 1 of 13

Biology

1. A red blood cell, entering the right side of the heart, passes by or through the following structures:
1. atrioventricular valve 2. Semilunar valve
3. Right atrium 4. Right ventricle
5. Sinoatrial node
In which order will the red blood cell passes the structures?

3 → 1 → 5 → 2 → 4

2 → 3 → 1 → 4 → 5

3 → 5 → 1 → 2 → 4

5 → 3 → 1 → 4 → 2

Question 1 of 13

Question 2 of 13

2. The rhythmic beating of cardiac muscle in the mammalian heart is initiated by the:

Atrio-ventricular node

Sino-atrial node

Purkinje tissue

Parasympathetic nervous system

Question 2 of 13

Question 3 of 13

3. During ventricular systole in a mammalian heart the

Aortic pressure decreases

Ventricular pressure increases

Semilunar valves close

Atrioventrcular valves open

Question 3 of 13

Question 4 of 13

4. Lymph most closely resembles which of the following?

Blood

Urine

Interstitial fluid

Water

Question 4 of 13

Question 5 of 13

5. What produces systolic blood pressure?

Contraction of the right ventricle

Contraction of the left ventricle

Contraction of the right atrium

Contraction of the left atrium

Question 5 of 13

Question 6 of 13

6. Human heart is

Digenic

Cardiogenic

Myogenic

Neurogenic

Question 6 of 13

Question 7 of 13

7. Lymph returns …………… to blood

Carbon dioxide

Oxygen

White blood cells

Interstitial fluid

Question 7 of 13

Question 8 of 13

8. Typical lub-dub sounds heard in heart in heartbeat are due to

Closing of semilunar valves

Closure of bicuspid –tricuspid valves followed by semilunar valves

Blood under pressure through aorta

Closing of bicuspid and tricuspid valves

Question 8 of 13

Question 9 of 13

9. Pacemaker is situated in heart

On interventricular septum

On interauricular septum

In the wall of left atrium

In the wall of right atrium

Question 9 of 13

Question 10 of 13

10. Bicuspid valve connects

Left atrium and left ventricle

Right atrium and left ventricle

Right atrium and right ventricle

Left atrium and right ventricle

Question 10 of 13

Question 11 of 13

11. Which of these factors has little effect on blood flow in arteries?

Heartbeat

Total cross sectional area of vessels

Skeletal muscle contraction

Blood pressure

Question 11 of 13

Question 12 of 13

12. What effect would be caused by cutting the sympathetic nerve fibres to the heart?

A decrease in the heartbeat rate

A decrease in the length of the systole phase

A decrease in the length of the diastole phase

A decrease in the stroke volume

Question 12 of 13

Question 13 of 13

13. The Sino Atrial node (SA node)

Is also called bundle of His

Regulates the rate of contraction

Regulates the rhythm of contraction

Is also called AV node

Question 13 of 13

 Loading...

 

Other Related test

• Punjab 9th Class Chemistry Model Paper 8 Mcqs Test Online
• Punjab 11th Class Urdu Lamha e Fikriya Mcqs Test Online
• Punjab 9th Class Math Model Paper 3 Mcqs Test Online
• Punjab 12th Class Physics Chapter 8 Dawn of Modern Physics Mcqs Test Online
• Punjab 9th Class English Model Paper 3 MCQs Test Online
• Punjab 11th Class Biology Chapter 4 The Cell Mcqs Test Online
• Punjab 11th Class Urdu Nazria e Pakistan Mcqs Test Online
• Punjab 12th Class English The Dying Sun Chapter 1 MCQs Test Online
• Punjab 11th Class English Chapter 2 Clearing in the Sky Mcqs Test Online
• Punjab 11th Class Math Chapter 1 Number System Mcqs Test Online