Transportation in Animals

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Transportation in Animals - 2

Description: Transportation in Animals - 2
Number of Questions: 25
Created by: Preeti Dasgupta
Tags: Transportation in Animals - 2 Transportation in Animals

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Blood of which of the following vessels in mammals carries the least percentage of urea?

Dorsal aorta
Renal vein
Renal artery
Posterior vena cava

Circulation of blood was discovered by

Darwin
Harvey
Aristotle
Lister

pH of blood in arteries and veins is

more in veins and less in arteries
more in arteries and less in veins
same
not definite

Tunica media of an elastic artery is made of mainly

smooth muscle fibres
loose alveolar tissue
elastic fibres
collagen fibres

Innominate is

a nerve and an artery
a muscle and an artery
a bone and an artery
a nerve and a vein

Pulmonary veins

carry pure blood from heart to lungs
carry pure blood from lungs to heart
carry impure blood from lungs to heart
carry impure blood from heart to lungs

Projecting from each atrium of human heart is a diverticulum of the

Apex
Base
Auricle
Pericardial reflection

Blood capillaries are made of

endothelium, connective tissue and muscle fibres
endothelium and muscles fibres
endothelium and connective tissue
endothelium only

In a portal system

a vein starts from an organ and ends up in the heart
a vein enters into an organ other than the heart and breaks up into capillaries
an artery breaks up in an organ and restarts by union of its capillaries
the blood from gut is brought into kidneys before it is poured into posterior vena cava

Arteries are

thin walled and blood flows under diminished pressure
thick walled and blood flows under high pressure
thin walled and blood flows under high pressure
thick walled and blood flows under diminished pressure

If the pace maker is absent,

only auricles will contract
only ventricles will contract
cardiac muscles will contract in a coordinated manner
cardiac muscles will not contract in a coordinated manner

If the heart is cut out from the body of a frog

it will continue beating for a long time if it is kept moist
it will continue beating for a long time if it is kept dry
it will not beat at all
none of the above

Mammalian erythrocytes have short life span due to absence of

endoplasmic recticulum
mitochondria
nucleus
golgi complex

Stimulation of the vagus nerve will make the heart beat

faster
40 times/min
slower
normal

An antigen is

opposite of an antibody
residue of an antibody
stimulus for antibody formation
result of antibody

Parents belong to blood group A and B. Blood group of their child will be

A or B
O
AB
ABOAB

Which blood group does not have any antigen but possesses both a and b antibodies?

A man will be unconscious if the blood supply to the brain is stopped for more than

2 seconds
5 seconds
10 seconds
30 seconds

Which of the following does not pass through diaphragm?

Inferior vena cava
Oesophagus
Aorta
None of these

Rh factor is named after

monkey
drosophila
rat
man

Foramen of Panizzae is present in the heart of lizards in between

pulmonary arch and systemic arch
two systemic arches
two auricles
left auricle and ventricle

Which of the following statements is true?

All veins carry deoxygenated blood.
All arteries carry oxygenated blood.
All veins except one carry oxygenated blood.
All arteries except one carry oxygenated blood .

Clumping of RBC may occur when blood of one person is mixed with the serum or blood of another person. This is due to

antigen - antibody reaction
antitoxin - antibody reaction
antitoxin - antigen reaction
antibody - antibody reaction

Hypotension is

low blood pressure
high blood pressure
low blood sugar level
low WBCs count

If the vagus branch of frog is stimulated, the heart beat will

be stopped
be decreased
be increased
show no change

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Transportation in Animals - 2

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