The sympathetic nerve causes the heart rate to
increase
decrease
show no change
stroke volume increases
Correct Answer :
A. increase
Related Questions
Urea is transported by
WBC
RBC
haemoglobin
blood and plasma
Diapedesis is
movement of erythrocytes to injury site
migration of cells through the walls of blood capillaries into the tissue spaces
contraction of muscles
none of these
The white pus of an infected part in the body is composed of
dead erythrocytes and plasma
dead leucocytes and blood serum
living leucocytes and serum
living erythrocytes and serum
A person with blood group 'C required blood transfusion. Blood of which group can be given to him?
A only
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Bonly
Oonly
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A
AB
B
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The erythrocytes of mammals are non nucleated except in
rabbit
monkey
man
camel
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A
AB
B
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Corneal grafts are generally not rejected by the recipient because cornea is
non living
non proteineceous
non cellular
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The chamber of the mammalian heart from which deoxygenated blood is sent for oxygenation is
right auricle
right ventricle
left auricle
left ventricle
Pulmonary artery carries blood from
heart to lungs
lungs to heart
lungs to right auricle
lungs to left auricle
Blood has no role in the transport of O^2 in
earthworm
leech
lung fishes
insects
The largest blood corpuscle is
monocyte
thrombocyte
erythrocyte
lymphocyte
Clotting of blood oozing out of a wound, involves
drying as a result of evaporation of the plasma
denaturation of the blood albumins by thrombin
conversion of fibrinogen to fibrin by thrombin
haemolysis of erythrocytes
The vein which carries oxygenated blood is
pulmonary
renal
coronary
azygous
The pH of blood in arteries and veins is
same
more .in arteries and less in veins
not definite
less in arteries and more in veins
Blood passes from the arterioles to venules via
lacteals
valved veins
capillaries
any of these
The life of erythrocytes in mammalian blood is about
120 days
150 days
190 days
180 days
The left atrioventricular aperture in man is guarded by
tricuspid valve
simple valve
bicuspid or mitral value
sphincter value
William Harvey is known for the discovery of
muscle contraction
nerve conduction
renal excretion
blood circulation
The nerve like modified muscle in the right auricle is called
atrioventricular node
pacemaker
bulbus artriosus
none of these
The vertebrate heart is classified as
myogenic
neurogenic
amyogenic
both (a) and YW
Rh factor is named after
monkey
chimpanzee
man
none of these
The diameter of capillaries for the RBCs to pass is
4 fim
less than 5 fim
more than 5 Jim
more than 10 Jim
The process of blood cells formation is called
haemocytopoiesis
hematopoiesis
both (a) and (b)
none of these
The sympathetic nerve causes the heart rate to
increase
decrease
show no change
stroke volume increases
The larger lymphatic organ in the body is
lymph node
liver
pancreas
spleen
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sphygmomanometer
respirometer
thermometer
stethoscope
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B
AB
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polycythemia
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polydipsia
Pacemaker of the heart is
S.A. node
A.V. node
A.V. septum
LA. Septum