Tag: circulatory system

Quizzes (4) Questions (165)

Questions Related to circulatory system

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.
Water enters capillaries on the venule side as a result of:

  1. higher red blood cell concentration on this side

  2. increased blood pressure on this side

  3. an osmotic pressure gradient

  4. active transport from tissue fluid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • Materials, including oxygen, carbon dioxide, amino acids, sugars, and water, are exchanged between the blood and tissue fluid within blood vessels known as capillaries.
  • Blood pressure and osmotic pressure control the pressure in a capillary. Blood pressure, caused by the heart’s beating, is higher at the arterial end of the capillary and causes water to exit at that point.
  • On the other hand, blood pressure is weak by the time blood reaches the venous end of the capillary, and osmotic pressure becomes higher, causing water to enter at that end.
So, the correct option is 'An osmotic pressure gradient'.

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 transportation in animal and plants circulatory system and organs blood and blood vessels transportation in living organisms blood pressure circulatory system blood circulatory system

The heart is slightly tilted towards the 

  1. Right side

  2. Not tilted at all

  3. Left side

  4. Upper side
Reveal answer Fill a bubble to check yourself
C 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 mesodermal in origin. It is situated in the thoracic cavity, in between the two lungs. The heart is slightly tilted towards the left side because the right lung is larger than the left lung. This condition provides the heart with enough space to function properly and pump blood efficiently to different parts of the body.

So, the correct answer is 'Left side'.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

If the systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg, the pulse pressure is ____.

  1. 120 x 80 = 9600 mm Hg

  2. 120 + 80 = 200 mm Hg

  3. 120-80 = 40 mm Hg
  4. $\frac {120}{80}$ = 1.5 mm Hg
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The pulse pressure can be defined as the difference between the diastolic and systolic pressure of an individual’s heart. If the normal diastolic and systolic pressure of the adult human heart is 120 mm Hg and 80 mm Hg, respectively then the pulse pressure is 120 - 80 = 40 mm Hg.
Thus, the correct answer is '120-80 = 40 mm Hg.'
Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Which one of the following statements is correct regarding blood pressure?

  1. 130/90 mm Hg is considered high and requires treatment.

  2. 100/55 mm Hg is considered an ideal blood pressure.

  3. 105/50 mm Hg makes one very active.

  4. 190/110 mm Hg may harm vital organs like brain and kidney.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The blood pressure above 140/90 mm Hg is considered a high blood pressure and recurrent such values of an individual’s blood pressure can indicate hypertension. Blood pressure with more than values 190/110 mm Hg can have disastrous effects on the kidney and the brain.
Thus, the correct answer is '190/110 mm Hg may harm vital organs like brain and kidney.'
Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Blood pressure is defined as the force with which blood

  1. Comes out of the atrium

  2. Is pushed to the legs

  3. Pushes against wall of blood vessels

  4. Comes out of the ventricle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The force with which the blood pushes against the walls of the blood vessels, usually arteries, is known as the blood pressure. It is described in the unit mm Hg. The normal diastolic and systolic pressure of the adult human heart is 120 mm Hg and 80 mm Hg, respectively.

Thus, the correct answer is 'Pushes against wall of blood vessels.'

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

Which of the following statements is incorrect ? 

  1. Mammals have the ability to produce concentrated urine.

  2. Counter current is due to the flow of filtrate in two limbs of Henle's Loop in opposite direction.

  3. Henle's loop and vasa recta play a significant role in concentrating the urine.

  4. Flow of fitrate through vasa recta also follow the counter current pattern.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Flow of blood through vasa recta follows counter current pattern. Filtrate flows through loop of Henle.

Multiple choice biology human body and organ system blood pressure circulatory system transportation in animal and plants

The reabsorption of the sodium from glomerular filtrate is regulated by the hormone _____________.

  1. Glucagon

  2. Secretin

  3. Aldosterone

  4. Adrenaline
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Aldosterone is secreted by the outer layer of the adrenal gland. When aldosterone is present in the blood, all the $Na^{+}$ in the filtrate is reabsorbed b the epithelial cells of DCT and collecting duct. Retaining $Na{+}$ raises the osmotic pressure of the blood and reduces water loss from the body. 

Multiple choice biology life processes blood pressure circulatory system transportation in animal and plants

Normal systolic and diastolic value of blood pressure is

  1. 80/120 mm Hg

  2. 80/40 mm Hg

  3. 140/80 mm Hg

  4. 120/80 mm Hg
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A) Blood pressure is always read as systolic/diastolic pressure. Systolic pressure is 120 mm Hg while diastolic pressure is 80 mm Hg.

B) The systolic pressure is 120 mm Hg while diastolic pressure is 80 mm Hg.
C) Systolic pressure is 120 mm Hg.
D) 120 mm Hg here, represents the systolic pressure and 80 mm Hg represents the diastolic pressure.
So the correct answer is '120/80 mm Hg'.