solved

Q 10
What occurs following the presentation of antigen by an infected cell?
Generation of antibodies
Activation of cytotoxic T cells
Increase in phagocytosis
Release of histamine by mast cells
Q 26
Where are afferent (sensory) endings for the Hering -Breuer reflex located?

External intercostals
Diaphragm
Alveoli
Carotid arteries
Bronchi and bronchioles
Q 31
During inflammation, the first responders are resident _____ which kill bacteria and engulf them, followed by the gradual accumulation of ____ within 1 hr and finally the arrival of _____ which accumulate after about a week and clean up the remaining bacteria and dead tissue.

Neutrophils, macrophages, monocytes/macrophages
Neutrophils, monocytes, macrophages
Monocytes, neutrophils, macrophages
Macrophages, neutrophils, monocytes/macrophages
Q 36
Iron is a component of ______

Myoglobin
All answers are correct
Hemoglobin
Q 38
A patient with COPD has to be monitored if they are given oxygen because their __________.

Ventilatory drive is mainly by low pC02
Ventilatory drive is mainly by low p02
Ventilatory drive is mainly by high pC02
Ventilatory drive is mainly by high p02

Q 39
Enzymes in the ______ consist of strong bactericidal agents

Cytoplasm
Phagosome
Endoplasmic reticulum
Vacuole
Q 42
Cyclosporine is an immunosuppressive drug given to avoid:

Inhibition of immune system
Inhibition of T cells
Inhibition of complement system
Inhibition of B cells
Q 43
Twenty minutes after the accident, which set of findings would best fit his condition due to hypoventilation? While playing ball, a child fell and injured his head, producing a lesion in the respiratory center. As a result, he is hyperventilating.

Low arterial pO2, high arterial pCO2
Low arterial pO2, low arterial pCO2
High arterial pO2, low arterial pCO2
High arterial pO2, high arterial pCO2

Q 44
A child has an involuntary breath-holding phase and loses consciousness. Thankfully, the resulting high ____ causes the _____ to be stimulated so that the child starts breathing normally and returns to consciousness.

C02, peripheral respiratory center
02, peripheral respiratory center
02, central respiratory center
C02, central respiratory center

Q 45
The epithelium of the respiratory airways is supplied with sensory nerve endings called pulmonary _____ receptors that are stimulated to initiate coughing and sneezing.

Stretch
Chemo-
Irritant
J

Q 46
The mechanism of action of peripheral chemoreceptors include stimulation of the ____ cell which results in the release of ____ and ____.

Glomus, acetylcholine, ATP
Glomerulus, calcium, ATP
kidney, acetylcholine, NTP
Glomus, potassium, calcium

Q 47
The main reason that respiratory compensation occurs in high altitudes is due to stimulation of which of the following?

The central chemoreceptors by high PC02
The peripheral chemoreceptors by low P02
The peripheral chemoreceptors by high H+
The central chemoreceptors by high P02
The central chemoreceptors by low H+
Q 49
Functions of the complement system include ____.

All answers are correct
Mast cell activation
Chemotaxis
Mast cell activation and opsonization
Q 51
Which of these components are present in mature erythrocytes?

Nucleus
Mitochondria
Endoplasmic reticulum
Enzymes for metabolism

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