Breathing and Exchange of Gases

Amphibia does not respire using

• Skin

• Lungs

• Gills

• None

Internal Nares

Drag and Drop Correct Labelling

c

b

a

d

Oophagus

Pharynx

Nasal Cavity

Epiglottis

The ribcage, comprising the ​ (a)   positioned ventrally, the ​ (b)   extending laterally, the​ (c)   running dorsally, the​ (d)   located anteriorly, and the ​ (e)   situated posteriorly, forms a protective and supportive structure for vital organs.

• sternum
• ribs
• vertebral column
• clavicle bone
• diaphragm

Reorder the following

• Atmosphere

• Nasal Chamber

• Pharynx

• Trachea

• Lungs

What skeletal structure forms the ventral surface of thoracic chamber?

• Sternum

• Vertebral column

• Diaphragm

• Rib-cage

Amphibians e.g. frogs respire –

• (a) Through moist skin

• (b) Lungs

• (c) Both a and b

• (d) Trachea

Which is the correct sequence of air passages in man?

Which of the following options is wrong about the larynx (sound box)

• It is a bony box

• Glottis is the opening into the larynx

• During swallowing of food glottis is covered by epiglottis to prevent food entry into the larynx

• All

Trachea divides into right and left primary bronchi at _____th thoracic vertebra.

• 4

• 5

• 6

• 9