Body Fluids and Circulation
49 questions · Click an option and press Check Answer to reveal the result
Choose the incorrect statement:
Erythroblastosis foetalis can occur if the mother is Rh positive and the fetus is Rh negative.
Given below are two statements -
Statement-I : The atrium and ventricle of same side are separated by thick muscular tissue called atrio ventricular septum
Statement-II : Atrio ventricular septum has a muscular valve between the atria and ventricle of same side.
Which of the following statements regarding the human heart is incorrect?
During a joint diastole, all four chambers of the heart are in a relaxed state.
The stroke volume multiplied by the heart rate gives the cardiac output.
The second heart sound (dub) is associated with the opening of the semilunar valves.
Each ventricle pumps out approximately 70 mL of blood during a cardiac cycle.
Assertion : Lymph is a colourless fluid containing specialised lymphocytes which are responsible for immune responses of the body.
Reason : Exchange of nutrients, gases etc. between the blood and the cells always occurs through tissue fluid.
Cardiac activities of the heart are regulated by:
A. Nodal tissue
B. A special neural centre in the medulla oblongata
C. Adrenal medullary hormones
D. Adrenal cortical hormones
Choose the correct answer from the options given below:
A, B and C Only
A, B, C and D
A, C and D Only
A, B and D Only
The given figure shows the schematic plan of blood circulation in humans with labels A to D. identify the label and give its functions.
C – Vena cava – takes blood from body parts to right auricle, pCO2 = 45 mm Hg
D – Dorsal aorta – takes blood from heart to body
parts, pO2 = 95 mm Hg
A – Pulmonary vein – takes impure blood from body parts, pO2 = 60 mm Hg
B – Pulmonary artery – takes blood from heart to lungs, pO2 = 90 mm Hg
In 2012 a B+ person has donated blood to his aunt and it was a safe transfusion. Now in 2015 his aunt is willing to donate blood to her B+ grandson who was injured in a road accident and need urgent transfusion. But the Doctor diagnosed that she can't donate, blood group of the aunt is :
A+
B+
AB+
O+
Assertion : If repeated checks of blood pressure of an individual is 140/90 (140 over 90) or higher, it shows hypertension
Reason : High blood pressure leads to heart diseases and also affects vital organs like brain and kidney.
In which of the following option represent the correct blood flow pathway in pulmonary circulation?
.
.
.
.