Animal Physiology MCQs Part VI

1) The heart sound "dup" is produced when the
a) tricuspid valve is opened
b) mitral valve is opened
c) mitral valve is closed
d) semi-lunar valves at the base of aorta are closed

2) Heart beats are accelerated by
a) cranial nerves and acetylcholine
b) sympathetic nerves and acetylcholine
c) cranial nerves and adrenalin
d) sympathetic nerves and epinephrine

3) During the process of blood coagulation vitamin K helps in
a) the conversation of prothrombin to thrombin
b) the conversation of fibrinogen to fibrin
c) the formation of thromboplastin
d) the formation of prothrombin

4) The pacemaker in the heart is called the
a) purkinje fibres
b) papillary muscle
c) sino-atrial node (SAN)
d) Atrio-ventricular node (AVN)

5) Which one of the following does not have an open circulatory system?
a) Chelifer
b) Cockroach
c) Tadpole
d) Prawn

6) A cubic millimeter of blood contains about ….. white blood corpuscles

a) 50,000
b) 7,000
c) 1,000
d) 20,000

7) The pulmonary artery originates from the
a) right ventricle
b) left auricle
c) left ventricle
d) right auricle

8) Lymphoid tissue is found in
a) thymus
b) tonsils
c) lymph nodes
d) all of these

9) The aorta starts from the
a) Right ventricle
b) Right atrium
c) Left ventricle
d) Left atrium

10) Blood circulation was discovered by
a) Newton
b) J.C. Bose
c) Einstein
d) Harvey

11) The blood is a
a) matrix
b) fibre
c) type of vascular tissue
d) connection of cells

12) Erythrocytes are produced in the ….. in adults
a) spleen
b) liver
c) pancreas
d) bone marrow

13) The largest corpuscle of the blood is the
a) basophil
b) acidophil
c) monocyte
d) lymphocyte

14) Arteries are
a) thin walled and blood flows under high pressure
b) thick walled and blood flows under high pressure
c) thick walled and blood flows under diminished pressure
d) thin walled and blood flows under diminished pressure

15) The heart is enclosed in a transparent membrane called the
a) heart membrane
b) pericardium
c) mucous membrane
d) cell membrane

16) Formation of RBC is
a) leucopoiesis
b) erythropoesis
c) leukemia
d) erythrocytopaenia

17) The pattern of contraction and relaxation of the heart is referred
to as the

a) blood pressure
b) arterial flow
c) blood flow
d) cardiac cycle

18) The mineral present in the red pigment of vertebrate blood is
a) magnesium
b) Iron
c) Calcium
d) Copper

19) The heart is the size of the human
a) head
b) fist
c) hand
d) eye

20) The heart rate is the number of beats per
a) second
b) minute
c) hour
d) day

21) Hyperglycemia is due to
a) A high level of glucose in the blood
b) A low level of glucose in the blood
c) more albumins in the blood
d) more glycogen in the blood

22) In haemophilia
a) the blood has no RBC
b) the blood becomes too thick
c) the blood does not coagulate quickly
d) the blood is blue

23) The diastolic pressure in a healthy person is
a) 60 mm/Hg
b) 80 mm/Hg
c) 100 mm/Hg
d) 120 mm/Hg

24) Blood from the heart is carried to the lungs by the
a) Aorta
b) Pulmonary vein
c) Pulmonary artery
d) All these

25) Which one of the following blood vessels in mammals carries the least
amount of urea?

a) Hepatic portal vein
b) Hepatic vein
c) Dorsal aorta
d) Renal vein

26) If we remove the pressure receptors from
the urinary bladder then

a) There will be incontinence
b) Micturition will continue
c) There will be no collection of urine in bladder
d) Urine will slowly collect in the bladder

27) The excretion of sugar in the urine is called
a) Diabetes insipidus
b) Diabetes mellitus
c) Hydrocoel
d) Myxoedema

28) Frequent micturition due to increased
vasopressin is called

a) Diabetes insipidus
b) Diabetes mellitus
c) Hydrocoel
d) Myxoedema

29) Those animals which excrete a large amount

a) Terrestrial
b) Egg-laying
c) Amphibious
d) Aquatic

30) In public urinals the urine on standing
gives off a pungent smell, due to

a) Conversion of both urea and uric acid into ammonia
b) Conversion of uric acid into ammonia by the ornithine cycle
c) Conversion of urea into ammonia by bacteria
d) None of the above

31) Which one of the following is likely
to accumulate in a dangerous proportion
in the blood of a person whose kidney
not working pr

a) Lysine
b) Ammonia
c) Sodium chloride
d) Urea

32) Biliverdin and Bilirubin are excreted
mainly along with

a) Urine
b) Faeces
c) Sweat
d) Vitamins

33) The other function performed by the kidney apart
from excretion is

a) Osmoregulation
b) Temperature regulation
c) Hormonal regulation
d) Spermatogenesis

34) The glomeruli are confined to the
a) Medulla
b) Calyces
c) Cortex
d) Renal capsule

35) One of the following has nothing to
do with nitrogenous excretion:

a) Lungs
b) Kidneys
c) Skin
d) Liver

36) Desert snakes are mainly
a) Aminotelic
b) Ammonotelic
c) Ureotelic
d) Uricotelic

37) Ultrafiltration takes place in the
a) Blood capillaries
b) Tissue fluid
c) Glomerulus
d) Urinary bladder

38) The urine of a man suffering from Diabetes
insipidus is

a) Sweaty and watery
b) Sweaty and thick
c) Tasteless and watery
d) Tasteless and thick

39) The loop of Henle is most highly developed

a) Fresh water fishes
b) Salamanders
c) Desert lizards
d) Mammals

loop is present in

a) Medulla
b) Cerebellum
c) Cerebrum
d) Heart

41) Production of urea is in the
a) Kidney
b) Liver
c) Liver and kidney
d) Heart

42) Th esubstance completely absorbed by
the renal tubule is

a) Glucose
b) Starch
c) Cellulose
d) None of the above

43) The excretory product of mammals is
a) Salts
b) Urea
c) Glucose
d) All three

44) Urea formation is the function of the
a) Kidney
b) Ovum
c) Testis
d) Liver

45) Reabsorption of useful substances
back into the blood from the filtrate
in a nephron occurs in the

a) Proximal convoluted tubule
b) Loop of Henle
c) Distal convoluted tubule
d) Collecting duct

46) The proximal and distal convoluted tubules
are parts of a

a) Nephron
b) Oviduct
c) Vas deferens
d) Caecum

47) The infective stage of Ascaris is the
a) Fourth juvenile
b) Egg
c) Second juvenile
d) Adult worm itself

48) Chloragogen cells are analogous to the
a) Liver
b) Kidney
c) Lungs
d) Heart

49) The conglobate gland is present in the
a) Rat
b) Prawn
c) Cockroach
d) Leech

50) The grasshopper’s size is probably limited by the
a) Digestive system
b) Respiratory system
c) nervous system
d) Inadequate brain

51) The larva of Balanoglossus is the
a) Tornaria
b) Muller’s Larva
c) Kentrogen Larva
d) Imago

52) The common name of the marine fish, Anguilla, is
a) Rohu
b) Hilsa
c) Eel
d) Bombay duck

53) The number of fingers in the hind limb of the frog is
a) 5
b) 6
c) 4
d) 7

54) The kidney of an adult frog is a
a) Pronephros
b) Mesonephos
c) Metanephros
d) Opisthonephros

55) The mesorchium in the frog refers to the
a) Capsules of testes
b) Fold of peritoneum between a kidney and a testis
c) Internal tissue of testes
d) None of these

56) Pneumatic bones are expected to be found in the
a) House lizard
b) Frog’s tadpole
c) Flying fish
d) Pigeon

57) Locomotion in the kangaroo is known as
a) Richochetal
b) Saltatorial
c) Graviportal
d) Volant

58) The tusks of an elephant are its
a) Canines
b) Premolars
c) Incisors
d) Molars

59) The number of cervical vertebrae in mammals is
a) More than in the rabbit
b) Same as that in the whale
c) Less than that in the giraffe
d) More than double that in the horse

60) The toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared to oxygen by ( approximately )
a) 1000 times
b) 200 times
c) 20 times
d) 2 times

61) The lining of capillaries is
a) columnar
b) epithelial
c) cuboidal
d) endothelium

62) The route of circulation in human heart is
a) left auricle – right auricle – right ventricle – pulmonary vein-lungs- pulmonary artery- left ventricle-aorta
b) Right auricle-left auricle-right ventricle- pulmonary artery -lungs- pulmonary vein-left ventricle-aorta
c) Right auricle-right ventricle-pulmonary vein-lungs-pulmonary artery-left auricle-left ventricle-aorta
d) Right auricle – right ventricle – pulmonary artery- lungs – pulmonary vein- left auricle-left ventricle-aorta

63) New blood cells are produced in the liver in a foetus but destroyed
in the … of the adult:

a) liver
b) kidney
c) bone marrow
d) gastric juice

64) The rate of heart beat is controlled by the
a) CNS
b) SN
c) PNS
d) Autonomic nervous system

65) The heart beat is initiated by the electrical impulses generated in the
a) SAN
b) AVN
c) Inter-auricular septum
d) Auriculo-ventricular septum

66) The blood circulation in man is
a) A single circulation
b) An incompletely double circulation
c) A completely double circulation
d) none of the above

67) During the clotting process fibrinogen is converted into
a) thromboplastin
b) fibrin
c) thrombin
d) heparin

68) In arteriosclerosis
a) arterial walls become very thin and weak so that the blood oozes
out of the walls

b) sex linked heredity is involved
c) blood coagulates even in the arteries
d) arterial walls become inelastic and thickened.

69) An antibody is produced by the
a) R.B.C
b) W.B.C
c) Both
d) Platelets

70) Valves are present in
a) arteries
b) veins
c) vessels
d) capillaries

71) The cation taking part in the coagulation of blood is
a) Na
b) Ca
c) K
d) Cl

72) A portal system is one in which
a) a vein starts from an organ and ends up in the heart
b) an artery breaks up in an organ and restarts by the union of its capillaries
c) the blood from the gut is brought into kidney before it is poured into post caval
d) a vein breaks up in an organ into capillaries and restarts by their union as a new vein from the same organ

73) In which of the following does the heart always contain oxygenated
blood only?

a) Fish
b) Frog
c) Prawn
d) Crocodile

74) The artery used for measuring blood pressure is the
a) common carotid
b) External iliac
c) Brachial
d) Aorta

75) The accumulation of excess fluid in the tissue spaces is termed as
b) Oedema
c) Eschemia
d) Myocardial infarction

76) The middle coat (Tunica media) of the arteries consists of
a) Connective tissue rich in elastin fibres
b) Endothelium
c) Smooth muscle fibres
d) Striated muscle fibres

77) Which of the following organs will receive less blood during strenuous

a) Brain
b) Skin
c) Muscles
d) Heart

78) Heart block is
a) Myocardial infarction
b) An interruption in the conduction of the nerve impulse from the SA node through the conducting tissue.
c) A block in the coronary artery due to the presence of a blood clot
d) A block in the coronary artery due to arteriosclerosis

79) Which of the following is called the "blood bank of the human body" ?
a) Liver
b) Heart
c) Spleen
d) Bone marrow

80) Inadequate supply of oxygen to the heart causes
a) Thrombosis
b) Bradycardia
c) Tachycardia
d) Angina pectoris

81) The chief function of lymph nodes in the mammalian body is to
a) Produce hormones
b) Destroy old and worn out RBCs
c) Produce WBCs
d) collect WBCs for destroying pathogens

82) Cardiac muscles are striped
a) Syncytial involuntary fibres
b) Syncytial voluntary fibres
c) Nucleated involuntary fibres
d) Nucleated voluntary fibres

83) Papillary muscles are located in the
a) ventricles of the human heart
b) dermis of the mammalian skin
c) orbits of the vertebrate eyes
d) pylorus of the vertebrate stomach

84) The first heart transplant was performed by :
a) James Watson
b) William Harvey
c) Har Govind Khorana
d) Christiaan Barnard

85) In human beings, how much blood is pumped to the brain per minute?
a) 0.5 litre
b) 1.2 litre
c) 0.75 litre
d) 1.5 litre

86) A sphygmomanometer measures:
a) Heartbeat rate
b) Pulse rate
c) Blood pressure
d) All of these

87) Tachycardia is a
a) rapid heartbeat
b) slow heartbeat
c) abnormal heart rate
d) none

88) If the spleen is removed from the body of an adult man the
a) Antibody production will be less
b) RBC production will be lowered
c) WBC production will be lowered
d) Filtration of dead RBC will stop

89) Complete cessation of the activity
is called

a) Heart block
b) Cardiac arrest
c) Fibrillation
d) Myocardial ischaemia

90) The minute blood vessels that supply blood to the wall of a larger
blood vessel, artery or vein are called

a) arterioles
b) venules
c) vasa vasorum
d) vasa recta

91) Which of the following is a fish without haemoglobin?
a) Latimeria
b) Salmon
c) Ice fish
d) Anabas

92) The pulse rate is measured from a/an
a) Nerve
b) Artery
c) Vein
d) Capillary

93) The inorganic ions associated with blood pressure are
a) Fe ++
b) Ca ++
c) Na+
d) K+

94) The fat and fat soluble vitamins absorbed from the intestine
and transported through the lacteals reach the blood vascular system
in the region of the

a) Intestinal artery
b) Left subclavian vein
c) Phrenic artery
d) None of these

95) The tendons connecting the papillary muscles and auriculo ventricular
valves are

a) Musculi pectinati
b) Bundle of His
c) Chorda tendinae
d) Sinus venosus

96) An amoeboid and phagocytic WBC is
a) Neutrophil
b) Basophil
c) Eosinophil
d) Lymphocyte

97) The kidney of the rabbit is a
a) Mesonephros
b) Metanephros
c) Pronephros
d) None of the above

98) The conversion of a protein waste, the ammonia into urea, occurs in the
a) Kidneys
b) Lungs
c) Intestine
d) Liver

99) The yellow colour of urine of vertebrates is due to
a) Cholesterol
b) Urochrome
c) Uric acid
d) Melanine

100) The loop of Henle is concerned with the
a) Excretory system
b) Reproductive system
c) Nervous system
d) Muscular system


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