11323130
Description
Quiz by Michael Jardine, updated more than 1 year ago
|
Created by Michael Jardine
almost 7 years ago
|
|
Question 1
Question
What’s the major factor that drives breathing?
Answer
-
Blood CO2 level
-
Blood H+ level
-
Blood O2 level
-
Pacemaker-like cells
-
Blood pH
-
Vagal stimulation
-
Vagal inhibition
Question 2
Answer
-
Phrenic
-
Vagal
-
Inspiration
-
Expiration
Question 3
Question
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.
Answer
-
Arterial
-
Venous
-
Lungs
-
Kidney
Question 4
Question
What's this bit?
(responsible for responding to CO2)
Answer
-
RetroTrapezoid Nucleus (RTN)
-
RetroTrapezoid Fibrillary Medulla (RTFM)
Question 5
Question
DRG = ??
Answer
-
Dorsal Root Ganglion
-
Dorsal Respiratory Group
-
“Dickheads are Racists” Group
Question 6
Question
VRG = ??
Answer
-
Ventral Root Ganglion
-
Ventral Respiratory Group
-
“Vickheads are Racists” Group
Question 7
Question
DRG neurons consist [blank_start]__________[blank_end], whereas VRG neurons consist of [blank_start]__________[blank_end].
Answer
-
Mainly of inspiratory neurons
-
Mainly of expiratory neurons
-
Both inspiratory and expiratory neurons
Question 8
Question
Neurons in the pontine “[blank_start]__________[blank_end] centre” [blank_start]__________[blank_end] inspiratory neurons, thus LIMITING inspiration.
Answer
-
Pneumotaxic
-
Apneustic
-
Inhibit
-
Excite
Question 9
Question
Neurons in the pontine “[blank_start]__________[blank_end] centre” [blank_start]__________[blank_end] inspiratory neurons, thus PROMOTING inspiration.
Answer
-
Pneumotaxic
-
Apneustic
-
Inhibit
-
Excite
Question 10
Question
[blank_start]__________[blank_end] is usually a passive process.
Answer
-
Inspiration
-
Expiration
Question 11
Question
Mutations for the Phox2b transcription factor result in Congenital Central Hypoventilation Syndrome (CCHS) which causes an almost complete loss of respiratory response to what?
Answer
-
Increased CO2
-
Exercise
-
Arousal
Question 12
Question
True or false: Phox2b is expressed in the cerebellum.
Answer
- True
- False
Question 13
Question
True or false: Phox2b is not expressed in neurons above the pons.
Answer
- True
- False
Question 14
Question
RTN = ??
Answer
-
RetroTrapezoid Nucleus
-
Rostral Trapezoid Nucleus
-
RetroTrapezoid Nerves
-
Rostral Trapezoid Nerves
Question 15
Question
Which of the following is known as the “Hering-Breuer reflex”?
Answer
-
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
Question 16
Question
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].
Answer
-
RTN
-
Carotid body
Question 17
Question
Central vs Peripheral chemoreceptors. The Central chemoreceptors detect [blank_start]__________[blank_end], whereas the Peripheral chemoreceptors detect [blank_start]__________[blank_end].
Answer
-
HIGH CO2
-
LOW C02
-
HIGH O2
-
LOW O2
Question 18
Question
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.
Answer
-
Increase
-
Decrease
-
Increased
-
Decreased
-
Increase
-
Decrease
-
Increased
-
Decreased
Question 19
Question
Diving results in:
Answer
-
Bradycardia
-
Tachycardia
Want to create your own Quizzes for free with GoConqr? Learn more.