Diaphragm is characteristic of
egg-laying mammals only
marsupial mammals only
eutherian mammals only
all the mammals
Correct Answer :
D. all the mammals
Related Questions
Emphysema is a respiratory disease in which
the larynx is closed
the trachea gets narrowed
the gas exchange area of lungs is increased
the gas exchange area of lungs is decreased
In all vertebrates, the oxygen transport is through
haemocyanin
haemoglobin
myoglobin
haemoerythrin
The impulses reaching voluntary muscles for forced breathing originate from
medulla oblongata
spinal cord
vagus nerve
cerebrum
Tissue respiration is a process by which
carbohydrates are synthesised
proteins are broken down
fat molecules are metabolised
energy is liberated
The opening into the wind pipe or trachea is called
larynx
epiglottis
glottis
bronchi
Air directly enters the tracheae via the
external nares
pharynx
larynx
bronchi
A normal man respires in a minute
25-30 times
10-15 times
14-18 times
20-25 times
The rate of respiration is lowest at
sleeping
running
eating food
playing
The metal associated with haemoglobin is
Copper
Magnesium
Iron
Manganese
The membrane covering the lungs is
conjunctiva
pleura
meninges
peritoneum
The capacity of lungs for air in a healthy man is about
500 ml
1000 ml
2000 ml
3000 ml
Ciliated epithelium in the trachea of mammals helps in
sucking-in air
pushing expired air out
pushing mucus out
keeping the alveolar air in circulation
Anoxia means
absence of oxygen
diminished amount of oxygen delivered to the tissues
both (a) and (b)
none of these
The medullary inspiratory centre is always under direct control of
chemicals
physical conditions
nerves
all of these
Colour of oxyhaemoglobin is
dull red
bluish red
bright red
dull brown
The respiratory portion of the respiratory tract consists of
Pharynx, larynx, trachea, bronchi and bronchioles
Trachea, bronchi, bronchioles, alveolar ducts and alveoli
Respiratory bronchioles, alveola ducts, alveolar sacs and alveoli
Bronchi, bronchioles, alveolar ducts, alveolar sacs and alveoli
The substances undergoing slow oxidation in the body during respiration are known as
Oxidases
Metabolites
ATP
ADP
The maximum volume of inspirable air is called
vital capacity
residual volume
inspiratory capacity
any of these
The greatest volume of air that can be expired after a maximum inspiratory affect, is its
residual volume
tidal volume
vital capacity
lung volume
The "mountain sickness" in persons climbing to high attitudes without the aid of oxygen cylinders is due to
lack of sufficient amount of haemoglobin
lack of sufficient amount of erythrocytes
arterial hypoxia
anaemic hypoxia
The vibrations of which of these membranes produces vocal sounds?
Glottis
Vocal cords
Vocal sacs
Epiglottis
The oxygen pressure in the alveolar air is
less than that is lung capillaries
equal to that in lung capillaries
double of that in lung capillaries
half of that in lung capillaries
The respiratory disease immediately related to cigarette smoking is
hypercapnia
pulmonary edema
hypoxia
emphysema
The respiratory tubes devoid of car-tilagenous rings are
trachea
bronchi
bronchioles
none of these
The term used to denote the difference in volume between the total lung capacity and the vital capacity is
tidal volume
ventilation rate
residual volume
all of these
Diaphragm is characteristic of
egg-laying mammals only
marsupial mammals only
eutherian mammals only
all the mammals
The condition in which the body suffers from acute oxygen shortage is called
anaemia
deoxygenation
detoxification
hypoxia
In rabbits, respiration takes place in
Cells lining the lung cavities
Cells found in blood
All living cells of the body
RBC only
In frog, the alveoli are surrounded by
flattened and ciliated cells to increase the surface area of lungs
columnar and ciliated cells to increase the surface area of lungs
only ciliated cells to increase the surface area of lungs
only squamous cells to decrease the surface area of lungs
Which of the following can respire in total absence of air (anoxyliosis)?
Amoeba
Bed bug
Hydra
Tapeworm