Tag: circulatory system and organs

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Questions Related to circulatory system and organs

Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

Choose the correct answer from the alternatives given.
Which of the following is the bodys largest blood vessel?

  1. Aorta

  2. Capillaries

  3. Pulmonary vein

  4. Heart
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aorta is the largest artery present in the body. It originates from the left ventricle and extends down to the abdomen. The aorta distributes oxygenated blood to all parts of the body.

So, the correct option is 'Aorta'.

Multiple choice evs circulation of blood circulatory system and organs blood and blood vessels transportation in living organisms role of receptors in the mouth types of teeth

The right side of the heart

  1. Pumps blood to the rest of the body

  2. Receives blood from the rest of the body

  3. Receives blood from the lungs

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The right side of our heart receives oxygen-poor blood from our veins and pumps it to your lungs, where the blood picks up oxygen and gets rid of carbon dioxide. The left side of our heart receives oxygen-rich blood from our lungs and pumps it through our arteries to the rest of our body.
So, the correct option is 'Receives blood from the rest of the body'.
Multiple choice evs circulation of blood circulatory system and organs blood and blood vessels transportation in living organisms role of receptors in the mouth types of teeth

Human heart represents

  1. Double circulation

  2. Systemic circulation

  3. Pulmonary circulation

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The human heart allows the complete separation of the deoxygenated and oxygenated blood. It has four chambers, the upper two atria and the lower two ventricles. The right side chambers (right atrium and right ventricle) are concerned with the deoxygenated blood. The right atrium receives the deoxygenated blood from the body and the right ventricle pumps it to the lungs. This is the pulmonary circulation. It completes when the left side chamber of the left atrium receives it. So, the left side chambers are concerned with oxygenated blood. The left ventricle then transports it to the rest of the body in the systemic circulation. So, the pulmonary and the systemic circulation maintained by the human heart constitute the double circulation of the blood.

Hence, the correct answer is 'Double circulation'

Multiple choice evs circulation of blood circulatory system and organs blood and blood vessels transportation in living organisms role of receptors in the mouth types of teeth

In the human body, the blood transports

  1. Oxygen

  2. Nutrients

  3. Carbon dioxide

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The human circulatory system consists of a muscular four-chambered heart, a network of closed branching blood vessels and blood, the fluid which is circulated. Blood is a special connective tissue consisting of a fluid matrix, plasma, and formed elements. It is pumped by the heart to all over the body. In the human body, the blood transports oxygen, nutrients and carbon dioxide.
So, the correct answer is 'All of the above'.
Multiple choice evs circulation of blood circulatory system and organs blood and blood vessels transportation in living organisms role of receptors in the mouth types of teeth

The component of the circulatory system is/are

  1. Arteries

  2. Heart

  3. Veins

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Circulatory system or cardiovascular system is the organ system that helps to transport oxygen, nutrients, hormones etc to all the cell of the body. It consists of heart, veins, arteries, capillaries. Thus, the correct answer is option D.

Multiple choice evs circulation of blood circulatory system and organs blood and blood vessels transportation in living organisms role of receptors in the mouth types of teeth

Vasoconstriction mainly causes

  1. Increase in heart beat

  2. Decrease in heart beat

  3. Increase in blood pressure

  4. Decrease in blood pressure.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vaso means vessels and constriction means narrowing, therefore, narrowing of blood vessels results in vasoconstriction. Normally, it is done due to the shrinking of smooth muscles of vessels to react according to the environment by raising blood pressure for stabilization, prevent loss of heat, control blood flow in body, transfer nutrients and prevent from blood and fluid loss but in some cases it can also be a severe health problem leading to hypertension or high bp.

So the correct option is 'Increase in blood pressure'

Multiple choice evs circulation of blood circulatory system and organs blood and blood vessels transportation in living organisms role of receptors in the mouth types of teeth

Circulatory system does not help in

  1. Transport of gases

  2. Transport of nutrients

  3. Transport of hormones

  4. Passage of impulses.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The circulatory system transports gases, nutrients, and hormones. Nerve impulses are transmitted through the nervous system, not the circulatory system.

Multiple choice evs circulation of blood circulatory system and organs blood and blood vessels transportation in living organisms role of receptors in the mouth types of teeth

The pumping action of the heart is due to the 

  1. Bones of the heart

  2. Muscles of the heart

  3. Spaces in the heart

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Human circulatory system consists of a muscular four-chambered heart, a network of closed branching blood vessels and blood, the fluid which is circulated. The heart is a  4 chambered muscular organ present in the thoracic cavity in between the lungs. it does not have any bones. The chambers(spaces) of blood are filled with blood.T he muscular action of heart walls pump blood throughout the body through blood vessels. Hence the pumping 

So, the correct answer is 'Both B and C'.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

What would happen if fangs of venomous snake are pulled out ? They will

  1. Get replaced

  2. Become double

  3. Be safe to handle

  4. Never get replaced
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In general teeth of reptiles (except crocodile) are acrodont. Thus, teeth are fixed over bone and not embedded in sockets in jaws. The fangs of snakes are modified maxillary teeth of upper jaw. If pulled out these teeth can be replaced.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

Premolar are absent in 

  1. Adult teeth in man

  2. Mammalian teeth in general

  3. Permanent teeth of man

  4. Deciduous teeth of man
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Humans have two sets of teeth- the deciduous or milk teeth and the permanent teeth. The milk premolars are absent in infants. Thus, dental formula of infants are 2102/ 2102 as against 2123/ 2123 in adult humans.