Tag: circulatory system

Questions Related to circulatory system

Arterial blood pressure in human beings

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

  1. 120 and 80 mm Hg

  2. 150 and 100 mm Hg

  3. 50 and 100mm Hg

  4. None of the above

Show answer
Correct Option: A
Explanation:

Normal resting blood pressure or arterial blood pressure for an adult human being is about 120/80 mm Hg. Blood pressure is summarized by two measurements, systolic and diastolic, which depend on whether the heart muscle is contracting (systole) or relaxed between beats (diastole).

So, the correct answer is option A.

In normal blood pressure of 120/80 mm Hg, the numerator presents

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

  1. Pulse pressure

  2. Cardiac index

  3. Systolic pressure

  4. Diastolic pressure

Show answer
Correct Option: C
Explanation:

A healthy blood pressure reading should be lower than 120/80 mm Hg. Normal blood pressure is less than 120 mm Hg systolic and 80 mm Hg diastolic, and may vary from 90/60mm Hg to 120/80mm Hg in a healthy young woman. A blood pressure of 140/90 mmHg or higher indicates high blood pressure.

So, the correct option is 'Systolic pressure'.

The instrument by which B.P. of man is determined is 

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

  1. Sphygmomanometer

  2. Cardiograph

  3. Ultrasound

  4. Stethoscope

Show answer
Correct Option: A
Explanation:

Blood pressure is regulated by the amount of water and salts. It is regulated by hormones secreted by the adrenal gland. Aldosterone regulates a number of salts and water in the blood. The fluctuation in the blood pressure is measured by Sphygmomanometer. It was invented by Samuel Siegfried Karl Ritter von Basch in 1881. Hence, the correct answer is option A.

Systole causes

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

  1. Entry of blood into lungs

  2. Entry of blood into heart

  3. Exit of blood from heart

  4. Exit of blood from ventricles

Show answer
Correct Option: D
Explanation:

Systole is the period of contraction of the ventricles of the heart that occurs between the first and second heart sounds of the cardiac cycle (the sequence of events in a single heart beat). Systole causes the ejection of blood into the aorta and pulmonary trunk.

So, the correct answer is option D.

What is blood pressure?

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

  1. The pressure of blood on the heart muscle

  2. The pressure of blood exerted on the walls of arteries and veins

  3. The pressure of blood on the walls of veins only

  4. The pressure of blood on the walls of arteries only

Show answer
Correct Option: B
Explanation:

The blood flows under great pressure in the arteries and veins. Blood pressure may be defined as the pressure exerted by the blood on the arteries and veins. It is measured by sphygmomanometer.

So, the correct answer is option B.

Normal blood pressure of human being must be

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

  1. 140/80mmHg

  2. 160/100mmHg

  3. 120/80mmHg

  4. 140/90mmHg

Show answer
Correct Option: C
Explanation:

Blood pressure is the pressure applied on the wall of the arteries and veins. The systolic phase applies greater pressure than the diastolic phase. Normal blood pressure of human being must be 120/80mmHg.

So, the correct answer is option C.

The diastolic pressure in a healthy person is ............... mm of Hg.

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

  1. $60$

  2. $80$

  3. $100$

  4. $120$

Show answer
Correct Option: B
Explanation:

The diastolic blood pressure measures the pressure in the arteries between heartbeats (when the heart muscle is resting between beats and refilling with blood). A normal diastolic blood pressure is 80mm of Hg.

So, the correct answer is option B.

Which one of the following is a correct matching pair?

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

  1. Lubb - Sharp closure of AV valves at the beginning of ventricular systole

  2. Dup - Sudden opening of semilunar valves at the beginning of ventricular diastole

  3. Pulsation of the radial artery - Valves in the blood vessels

  4. Purkinje fibers - Initiation of the heart beat

Show answer
Correct Option: A
Explanation:
First sound of heart is lubb (a long and booming sound), created by the closure of atrioventricular valves (AV), tricuspid and bicuspid at the beginning of ventricular systole. the second sound of heart is dupp which is short and sharp. The instrument used to hear heart sound is stethoscope.

Which one of the following is a matching pair of a certain body feature and it's value / count in a normal human adult?

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

  1. Urea - 5-10 mg/100 ml of blood

  2. Blood sugar (fasting) - 70-100 mg/100 ml

  3. Total blood volume - 5-6 ml

  4. ESR in Wintrobe method - 9-15 mm in males and 20-34 mm in females

Show answer
Correct Option: B
Explanation:
Normal human adult blood should contain between 6 to 20 mg of urea nitrogen per 100 ml (6–20 mg/dl) of blood.
The most commonly used screening tests are determination of the fasting blood glucose level and the blood glucose level tested two hours after a meal. The normal fasting blood sugar content is 70-110 mg per 100 ml of blood.
A typical adult has a blood volume of approximately 5 liters, with females generally having less blood volume than males. Blood volume is regulated by the kidneys.
Results from your ESR rate test will be reported in the distance in millimeters (mm) red blood cells have descended in one hour (hr). The normal range is 0-22 mm/hr for men and 0-29 mm/hr for women. 

Pressure exerted by blood against its walls of an artery during ventricular contraction is 

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

  1. Diastole

  2. Systole

  3. Cardiac Murmur

  4. None of the above

Show answer
Correct Option: B
Explanation:

The systole is a phase when the chambers of the heart relax and the blood is filled in the respective chambers. The pressure exerted by blood against its walls of an artery during ventricular contraction is systolic pressure. It is estimated as 120mm Hg.

So, the correct answer is option B.