Approximately what amount of oxygen is carried in a dissolved state through the plasma by 100 ml of oxygenated blood?
1. 0.6 ml
2. 1.4 ml
3. 4 ml
4. 5 ml
The oxy-hemoglobin dissociation curve shifts to the right in all the following conditions except:
1. | Presence of 2,3-DPG | 2. | Increased temperature |
3. | Increased pH | 4. | Increased carbon dioxide |
The binding of carbon dioxide to hemoglobin:
I: is related to the partial pressure of carbon dioxide
II: is affected by the partial pressure of oxygen
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
The alveoli are lined with:
1. Simple cuboidal epithelium
2. Pseudo-stratified columnar ciliated epithelium
3. Transitional epithelium
4. Simple squamous epithelium
Pulmonary fibrosis is the feature of all cases of:
1. Occupational respiratory disorders
2. Emphysema
3. Pneumonia
4. Bronchial asthma
Under normal physiological conditions, the maximum volume of air a person can breathe out after a forced inspiration in a healthy human being is about:
1. | 2300 ml | 2. | 3500 ml |
3. | 4600 ml | 4. | 5800 ml |
The type of cartilage that makes epiglottis is:
1. Elastic
2. Hyaline
3. Calcified
4. Fibrous
Where do you expect to find the following events takings place?
1. RBC in venous capillary at tissues
2. RBC in arterial capillary at tissues
3. RBC in venous capillary at lungs
4. RBC in arterial capillary at lungs
Phonation is the function of:
1. | Larynx | 2. | Pharynx |
3. | Muscles of lips and tongue | 4. | Sinuses in the bones |
Branchial respiration is seen in all the following except:
1. Aquatic arthropods | 2. Fishes |
3. Amphibians like frog | 4. Aquatic mollusks |