Tag: human body and organ system

Questions Related to human body and organ system

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.

The difference between systolic and diastolic pressure in human is

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

  1. $120$mm Hg

  2. $80$mm Hg

  3. $40$mm Hg

  4. $200$mm Hg

Show answer
Correct Option: C
Explanation:

Pulse pressure is the difference between the systolic and diastolic pressure readings. It is measured in millimeters of mercury (mmHg). It represents the force that the heart generates each time it contracts. Systolic pressure in human is 120 mm Hg and Diastolic pressure in human is 80 mm Hg. Therefore difference between them is 40mm Hg. 

Therefore, the correct answer is option C.

The normal systolic pressure is 

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

  1. 120 mm of Hg

  2. 80 mm of Hg

  3. 150 mm of Hg

  4. 50 mm of Hg

Show answer
Correct Option: A
Explanation:

Systolic pressure is measured in the arteries when the heart contracts and is 120 mm of Hg in a normal condition.

Diastolic pressure is measured when the heart is relaxed and it is 80 mm of Hg.
Values above or below them are considered abnormal.
So, the correct answer is ' 120 mm of Hg'.

Sphygmomanometer measure

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

  1. Nerve conduction rate

  2. Heart beat rate

  3. Blood pressure

  4. Pulse rate

Show answer
Correct Option: C
Explanation:

A sphygmomanometer is an instrument, attached to an inflatable air bladder cuff and used with a stethoscope, for measuring blood pressure in an artery. Systolic pressure is identified with the first of the continuous korotkoff sounds. Diastolic pressure is identified at the moment the korotkoff sounds disappear. 

So, the correct answer is option C.

Normal diastolic pressure in young man is about

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

  1. 20 mm Hg

  2. 80 mm Hg

  3. 100 mm Hg

  4. 130 mm Hg

Show answer
Correct Option: B

Increase in blood pressure is known as

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

  1. Hypertension

  2. Hypotension

  3. Hyperglycemia

  4. Hypochromia

Show answer
Correct Option: A
Explanation:

Hypertension is defined as an increase in the blood pressure in the arteries. It is a severe condition which may lead to heart strokes. Normal blood pressure at rest is within the range of 100-140 mm Hg systolic (top reading) and 60-90 mm Hg diastolic (bottom reading). 

So, the correct answer is option A.

The instrument by which blood pressure of a man is determined

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

  1. Sphygmomanometer

  2. S.P. meter

  3. Ultrasound

  4. Stethoscope

Show answer
Correct Option: A
Explanation:

A sphygmomanometer is an instrument attached to an inflatable air bladder cuff and used with a stethoscope, for measuring blood pressure in an artery. It is estimated with reference to mmHg.

So, the correct answer is option A.

The instrument used for measuring blood pressure is known as

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

  1. ECG.

  2. Stethoscope.

  3. Sphygmomanometer.

  4. EEG.

Show answer
Correct Option: C
Explanation:
The instrument used for measuring blood pressure is known as sphygmomanometer. The blood pressure in the measured in mm of Hg (millimetres of mercury) and recorded with systolic number first followed by diastolic. A normal blood pressure recorded would be 120/80 mm Hg.
So, the correct answer is 'Sphygmomanometer'.