Respiration And Circulation

Question 1

The muscular structure that separates the thoracic and abdominal cavity is …….

Answer 1

Diaphragm

Question 2

What is the minimum number of plasma membrane that oxygen has to diffuse across to pass from air in the alveolus to haemoglobin inside a R.B.C.?

Answer 2

Two

Question 3

……..is a sound producing organ

Answer 3

Larynx

Question 4

The maximum volume of gas that is inhaled during breathing in addition to T.V. (Tidal Volume) is……….

Answer 4

IRV

Question 5

……….muscles contract when the external intercostals muscles contract.

Answer 5

Diaphragm

Question 6

Movement of cytoplasm in unicellular organisms is called

Answer 6

Cyclosis

Question 7

Which of the following animals do not have closed circulation?

Answer 7

Butterfly

Question 8

Diapedesis is performed by

Answer 8

Leucocytes

Question 9

Pacemaker of heart is

Answer 9

SA node

Question 10

Which of the following is without nucleus?

Answer 10

Red blood corpuscle

Question 11

Cockroach shows what kind of circulatory system?

Answer 11

Open

Question 12

Diapedesis can be seeing in

Answer 12

WBC

Question 13

Opening of inferior vena cava is guarded by

Answer 13

Esutachian valve

Question 14

…… Wave in ECG represent atrial depolarisation.

Answer 14

P

Question 15

The fluid seen in the intercellular spaces in Human is

Answer 15

Lymph

Question 16

The nasal cavity is divided into right and left nasal chambers by a

Answer 16

Mesethmoid

Question 17

The volume of air that remains in the lungs after maximum respiration is …….

Answer 17

1100 to 1200 ml

Question 18

Find out the example in which due to absence of respiratory pigment transport of respiratory gases does not take place…….

Answer 18

Cockroach

Question 19

Which of the following has thickest wall?

Answer 19

Left ventricle

Question 20

The free edges of cuspid valves are attached to the papillary muscles of the heart by fibres are called…..

Answer 20

Chordar tendinae

Question 21

The volume of air inspired or expired during normal breathing is

Answer 21

TV

Question 22

What is the partial pressure of oxygen and carbon dioxide respectively in the atmospheric air?

Answer 22

PPO2 104mmHg, PPCO2 40mmHg

Question 23

The vital capacity of human lung is equal to

Answer 23

4600 ml

Question 24

The exchange of gases between alveolar air and alveolar capillaries occurs by

Answer 24

Diffusion

Question 25

Oxygen dissociation curve will shift to right on the decrease of

Answer 25

pH

Question 26

Respiratory organs in scorpion are

Answer 26

Book lungs

Question 27

Breakdown of alveoli of lungs resulting in reducing surface area for gas exchange is known as

Answer 27

Emphysema

Question 28

During inspiration, the diaphragm

Answer 28

Contracts

Question 29

Over inflation of the lungs is prevented due to

Answer 29

Hering-Breuer reflex

Question 30

Which of the following prevents collapsing of trachea?

Answer 30

Cartilaginous rings

Question 31

Which one of the following produces antibodies?

Answer 31

Lymphocytes

Question 32

Plasma protein which initiate blood coagulation is

Answer 32

Prothrombin

Question 33

The covering of heart is

Answer 33

Pericardium

Question 34

Left atrioventricular aperture is guarded by

Answer 34

Bicuspid valve

Question 35

The pulmonary trunk k and systemic aorta are joined by

Answer 35

Ligamentum arteriosum

Question 36

Ventricular depolarization is represented by

Answer 36

QRS complex

Question 37

.......is most commonly used to feel pulse

Answer 37

Radiel artery

Question 38

QRS is related to

Answer 38

Ventricular contraction

Question 39

Blood is a fluid connective tissue derived from

Answer 39

Mesoderm

Question 40

What is the increase in number of RBCs called?

Answer 40

Polycythemia

Question 41

The erythropoeitic tissue in adult is mainly found in

Answer 41

Red bone marrow

Question 42

In which of the following diseases there is uncontrolled increase in number of WBCs?

Answer 42

Leukemia

Question 43

What is the decrease in the number of WBCS called?

Answer 43

Leukopenia

Question 44

Which is the correct arrangement of types of WBCs with respect to their number in blood? (Consider Neutrophil = N, Eosinophil = E. Basophil = B. Monocyte = M and Lymphocyte = L)

Answer 44

NLMEB

Question 45

(45) Which is the correct order in which the proteins participate in clotting of blood? (a) Prothrombinase → Prothrombin →Thromboplastin → Thrombin (b) Thromboplastin → Prothrombinase → Prothrombin → Thrombin (c) Prothrombin Thromboplastin → Thrombin —>Prothrombinase (d) Thrombin —›Prothrombin -_—> Thromboplastin----> Prothrombinase

Answer 45

B)Thromboplastin—>Prothrombinase____Prothrombin___Thrombin

Question 46

Decrease in platelet count is called

Answer 46

Thrombocytopenia

Question 47

Atrioventricular groove is also called a

Answer 47

Coronary sulcus

Question 48

The coronary sinus opens into the

Answer 48

Right atrium

Question 49

Name the valve from the following that guards the opening of inferior vena cava.

Answer 49

Esutachian valve

Question 50

Name the valve from the following guarding the opening of coronary sinus

Answer 50

Thebesian valve

Question 51

What is an oval aperture in the interatrial septum of the foetus called?

Answer 51

Foramen ovalis

Question 52

What is the meaning of stroke volume?

Answer 52

Amount of blood put out of the ventricles in one beat

Question 53

How much amount of blood is put out of the heart during one minute?

Answer 53

Equal to cardiac output

Question 54

What is the time taken for one cardiac cycle of normal human being?

Answer 54

0.8 second

Question 55

Deposition of fatty substances in the lining of arteries results in

Answer 55

Atherosclerosis

Question 56

Largest number of white blood corpuscles are

Answer 56

Neutrophils

Question 57

Which of the following animal have open circulatory system?

Answer 57

Cockroach

Question 58

Which of the following leucocytes have unlobed nucleus?

Answer 58

Lymphocyte

Question 59

Carbonic anhydrase is found in

Answer 59

RBCs

Question 60

The typical Lubb - Dup sounds heard in the heart of a healthy person are due to

Answer 60

closing of cuspid valves followed by the closing of the semilunar valves

Question 61

(CO)=SV × HR is the formula used to calculate the volume of blood pumped out per minute. Which of the following is the value of (CO) in a normal adult

Answer 61

5040ml./mi