11323130
Beschreibung
Quiz von Michael Jardine, aktualisiert more than 1 year ago
|
Erstellt von Michael Jardine
vor etwa 7 Jahre
|
|
Frage 1
Frage
What’s the major factor that drives breathing?
Antworten
-
Blood CO2 level
-
Blood H+ level
-
Blood O2 level
-
Pacemaker-like cells
-
Blood pH
-
Vagal stimulation
-
Vagal inhibition
Frage 2
Antworten
-
Phrenic
-
Vagal
-
Inspiration
-
Expiration
Frage 3
Frage
The rate and depth of respiration are regulated by:
1 – Inputs to the respiratory centre signalling the Pco2, pH, AND Po2 of the [blank_start]__________[blank_end] blood;
2 – Afferent (sensory) inputs from receptors in the [blank_start]__________[blank_end];
3 – Inputs arising from higher centres of the brain, such as the motor cortex.
Antworten
-
Arterial
-
Venous
-
Lungs
-
Kidney
Frage 4
Frage
What's this bit?
(responsible for responding to CO2)
Antworten
-
RetroTrapezoid Nucleus (RTN)
-
RetroTrapezoid Fibrillary Medulla (RTFM)
Frage 5
Frage
DRG = ??
Antworten
-
Dorsal Root Ganglion
-
Dorsal Respiratory Group
-
“Dickheads are Racists” Group
Frage 6
Frage
VRG = ??
Antworten
-
Ventral Root Ganglion
-
Ventral Respiratory Group
-
“Vickheads are Racists” Group
Frage 7
Frage
DRG neurons consist [blank_start]__________[blank_end], whereas VRG neurons consist of [blank_start]__________[blank_end].
Antworten
-
Mainly of inspiratory neurons
-
Mainly of expiratory neurons
-
Both inspiratory and expiratory neurons
Frage 8
Frage
Neurons in the pontine “[blank_start]__________[blank_end] centre” [blank_start]__________[blank_end] inspiratory neurons, thus LIMITING inspiration.
Antworten
-
Pneumotaxic
-
Apneustic
-
Inhibit
-
Excite
Frage 9
Frage
Neurons in the pontine “[blank_start]__________[blank_end] centre” [blank_start]__________[blank_end] inspiratory neurons, thus PROMOTING inspiration.
Antworten
-
Pneumotaxic
-
Apneustic
-
Inhibit
-
Excite
Frage 10
Frage
[blank_start]__________[blank_end] is usually a passive process.
Antworten
-
Inspiration
-
Expiration
Frage 11
Frage
Mutations for the Phox2b transcription factor result in Congenital Central Hypoventilation Syndrome (CCHS) which causes an almost complete loss of respiratory response to what?
Antworten
-
Increased CO2
-
Exercise
-
Arousal
Frage 12
Frage
True or false: Phox2b is expressed in the cerebellum.
Antworten
- True
- False
Frage 13
Frage
True or false: Phox2b is not expressed in neurons above the pons.
Antworten
- True
- False
Frage 14
Frage
RTN = ??
Antworten
-
RetroTrapezoid Nucleus
-
Rostral Trapezoid Nucleus
-
RetroTrapezoid Nerves
-
Rostral Trapezoid Nerves
Frage 15
Frage
Which of the following is known as the “Hering-Breuer reflex”?
Antworten
-
Pulmonary stretch receptors are excited as the lungs inflate > nerve impulses to the respiratory centre in brainstem via nerve fibres in the VAGUS nerve > inhibition of inspiration
-
Pulmonary stretch receptors are excited as the lungs inflate > nerve impulses to the respiratory centre in brainstem via nerve fibres in the PHRENIC nerve > inhibition of inspiration
-
Increase of CO2 is sensed by the central chemoreceptors > excitation of inspiration stimulus by the VAGUS nerve
-
Increase of CO2 is sensed by the central chemoreceptors > excitation of inspiration stimulus by the PHRENIC nerve
Frage 16
Frage
Central vs Peripheral chemoreceptors. The Central chemoreceptors reside in the [blank_start]__________[blank_end], whereas the Peripheral chemoreceptors reside in the [blank_start]__________[blank_end].
Antworten
-
RTN
-
Carotid body
Frage 17
Frage
Central vs Peripheral chemoreceptors. The Central chemoreceptors detect [blank_start]__________[blank_end], whereas the Peripheral chemoreceptors detect [blank_start]__________[blank_end].
Antworten
-
HIGH CO2
-
LOW C02
-
HIGH O2
-
LOW O2
Frage 18
Frage
Upon submersion (or irritation stimulus), the nasopharyngeal reflex (aka “diving reflex”) triggers a(n) [blank_start]__________[blank_end] of Sympathetic vasomotor activity, which results in [blank_start]__________[blank_end] TPR. It also triggers a(n) [blank_start]__________[blank_end] in Cardiac vagal activity, which results in a decreased HR and decreased CO. The net effect of this is [blank_start]__________[blank_end] Oxygen conservation.
Antworten
-
Increase
-
Decrease
-
Increased
-
Decreased
-
Increase
-
Decrease
-
Increased
-
Decreased
Frage 19
Frage
Diving results in:
Antworten
-
Bradycardia
-
Tachycardia
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.