4.2 Breathing and exchange of gases Flashcards
Name some animals that respires through their whole body surface?
sponges , coelentarates, flatworms , tapeworms
Name some animals that respires with the help of moist cuticle?
earthworms
Name some animals that respires through rtacheal tubes ?
insects
Name some animals that respires with the help of gills?
aquatic arthopods and molluscs , fishes
How do frogs respire during hibernation ?
with their skin
What are the opening of the insects through which air enters called?
spiracles
Name the animals that respires with the help of skin simple diffusion ?
protozoa , porifera all the way to achelminthes
How does annelid respire?
moist cuticle
How do spiders respire?
book lungs
How do molluscs respire?
gills
How do echinoderms respire?
body surface
How do tadpole respire?
gills
What are the various classes in the arthropoda ?
insecta
arachnida
crustacea
How do the organisms of insecta , arachnida and crustaceans respire?
I - tracheal tubes
A- book lungs
C- book gills
What is the meaining of dirhynous condition ?
two nostrils
How does nasal vestibule develop from ?
invagination of skin during the embryonic development
What is the anterior part of the nasal chamber made up of ?
3 bones called the conchae
What are turbinals and what is their funciton?
outgrowths of bone
they make the nasal chamber long and spiral, makes the temperature of air same as the body and tehy help to trap the dust particles
How does hte nasal chamber open into the nasopharynx?
through internal nostrils called choanae
What is the funciton of ht etrachelaris mucles?
helpful for forceful respiraiton,
it is involuntary
Describe the anatomy of the lungs?
2;lobes
they are covered by pleural fluid
R- 3 lobes L-2 lobes
From where deos hte nerves and hte blood vesses enter the lungs?
the hilus
What is the condition in which the amount of pleural fluid incereases called?
pleuricy
What is the condiction where there is difficlty of breathing due to ncrease in pleural fluid?
dysponea
Discuss where the different types of epithelial tissue is present in the bronchi ?
PSCGE
primary secondary and tertiary
columnar cillited
total terminal
cuboidal cilliated
respiratory bornchiole
What is the parietal and hte visceral pleural membrane made up of?
parietal == WFCT
visceral == simple squamous
What is the meaning of dirhynous condition >
two external nostrils
What are the four differnet types of types of cartilage in larynx?
thyroid == hyaline
cricoid = hyaline
arytenod ==hyaline
santorini == elastic cartilage
What type of epitheliu in the superior conchae?
olfactory epithelium
What is th etype of epithelium in the middle and the inferior chonchae?
PSCGE
Till where do we have hte tracheal rings ?
primary bronchi
secondary bronchi
tertialry bronchi
initail bornchioles
What are the differnet types of ht cells in the alveoli and what is theri function ?
pneumocyte 1 = exchange of gases
pneumocyte 2 = secretion of LECITHIN to act as surfactant
How many alveoli are present in both the lungs of a man?
300 million
What are the respictive weights of both the lungs?
right - 645, 3 lobes
left - 575 , 2 lobes
What enter through the hilus and what leaves through the hilus?
ENTER :
pulmonary artery
pulmonary nerve
trachae
LEAVES:
pulmonary vein
What are the different types of fissures present in both the lungs?
R- horizontal fissure , oblique fissure
L - oblique fissure
What are the steps of respiration ?
1) drawing in of the gases
2) diffusion of gases across the alveolar membrane
3) transport of gases by the blood
4) diffusion of gases 02 and CO2 between the blood and the tisue
5) utilization of hte O 2 by te cells for catabolic reaction and resultant release if CO2
What are the anterior , prosterior , dorsal , ventral and lateral surface of the thoracic cage ?
anterior : clavicle and sternum
prosterior : diaphragm
dorsal: vertebral column
ventral: sternum and ribs
lateral : ribs
What happens to the pleural concentraiton during a bacterial infeciton ?
during the bacterial infection the concentration of hte pleural fluid increases
Why is our lungs called sucken lungs?
because it has power of self contraction and self relaxation
What is teh word related to the diaphragm?
phrenic
Which nerve is responsible for hte contraction of the contraction of the diaphragm?
phrenic nerve
What are the two types of hte mucles in the diaphragm?
phrenic muscles
radial muscles
How long deos expiration and inspiration last?
2 seconds
3 seconds
What are the muscles that helps in the breathing process?
diaphragm
coastal mucles and radial muscles
What are the muscles that helps in inspiration ?
EICM ( contraction) [ribs , and sternum upwards ]
radial muscles/ diaphragmic( contraction) [ diphragm flattens]
What are the muscles that helps in expiration?
IICM (contraction) [ribs : inward, sternum : down ward] phrenic muscles (contraction)
What is the tissue present in the outer side of the alvoeli?
yellow fibrous tissue
Where are the connection of the External intercoastal muscles?
it connects the dorsal face of upper ribs to the ventral face of the lower ribs
Where are the connection of hte enternal intercoastal muscles?
it connects the ventral side of the upper ribs with the dorsal face of the lower ribs
How many times does man respire in a minute?
12-16 times/minutes
What is the device used for clinical assessment of pulmonary function?
spirometer
What are the two types of breathing?
thoracic breathing : intercoastal muscles
abdominal breathing: normal breathing
How many times does an infant respire in a minute?
44 times
When is hte breathing the slowest?
sleeping
What is the meaning of hyponoea?
the state of slow breathing
What is the meaning of hypernoea?
it is the state of fast breathing