Smell loss is an early symptom of Parkinson's disease.
Parkinson's disease and Alzheimer's disease can be distinguished by smell tasting.
The majority of Parkinson's disease patients with smell loss are functionally anosmic or severely hyposmic
Olfactory disturbances in Parkinson's disease may have diagnostic utility for the differentiation of Parkinson's disease from other movement disorders.
Currently, there is no cure for smell loss in Parkinson's disease.
Question 2
Question
Which of the following statements is correct?
Answer
1. Olfactory receptor neurons regenerate
2. Preferences for most odors are inborn
3. Olfactory loss is commonly associated with brain lesion after stroke
4. Olfactory loss is typically permanent
5. The olfactory bulb volume is constant throughout lifetime
Question 3
Question
Which answer related to the vomeronasal organ (VNO) in adult humans is correct?
Answer
1. Humans possess a vomeronasal nerve
2. For humans, the vomeronasal system plays a crucial role in partner selection
3. Humans possess an accessory olfactory bulb
4. The vomeronasal system is probably not functioning in humans
5. Damage to the vomeronasal duct in humans results in 60% loss of olfaction
Question 4
Question
Smell disorders are frequently caused by
Answer
Neurodegenerative diseases
Scull fractures
Side effects of drugs
Diabetes mellitus Type I
Kallmann Syndrome
Question 5
Question
Mechanical stimuli excite mechanoreceptors in the skin by exciting what type of membrane receptors?
Answer
Voltage gated calcium channels
Trp channels
TTX insensitive sodium channels
G protein coupled receptors
Mechanosensitive ion channels
Question 6
Question
One of these statements is WRONG
C-fiber nociceptors never:
Answer
respond to brush stimuli
make direct synaptic connections only with excitatory interneurons within lamina I and II
can sometimes also respond to noxious cold
are often activated by algogenic chemicals
mediate flare response in the skin when activated
Question 7
Question
1. humans can generally hear sounds with frequencies between 20 Hz und 18 kHz
2. the anatomical structure in which the primary auditory cortex is located is also called Heshl’s gyrus
3. the main speech range in humans lies between 250 Hz und 3000 Hz
4. a temperature adjustment occurs in the middle ear between the air filled outer ear and the liquid filled inner ear
5. a spectral analysis of complex accoustic signals takes place in the cochlea
Answer
just 2 and 4 are correct
1-5, all are correct
just 2 is correct
just 1, 2, 3 and 5 are correct
just 1 und 3 are correct
Question 8
Question
What is correct?
Answer
1. Olfactory loss can be an early sign of measles.
2. Olfactory loss can be an early sign of Parkinson’s disease.
3. Olfactory loss is rarely seen in elderly people.
4. Olfactory loss is commonly associated with brain lesion after stroke.
5. Olfactory loss is not associated with Huntington’s disease.
Question 9
Question
Spontaneous recovery is found in postinfectious olfactory loss at a rate of
Answer
45%
15%
30%
0%
more than 60%
Question 10
Question
What afferent fiber type conveys first pinch sensation?
Answer
Group Ia spindle afferents
Thinly myelinated Aδ-fibers
Large myelinated Aβ−fibers
Sympathetic efferent fibers
Merkel disk afferent fibers
Question 11
Question
Smell disorders are frequently caused by ...
Answer
Neurodegenerative diseases
Scull fractures
Side effects of drugs
Diabetes mellitus Type I
Kallmann Syndrome
Question 12
Question
Which statements are correct?
A) the starting point of the travelling wave in the cochlea is important for the place-pitch coding
B) loudness is coded by spike rate in the auditory nerve
C) frequency tuning curves are similar for all auditory neurons
D) the primary auditory cortex is tonotopically organised
E) the hearing threshold in humans is similar at all frequencies
Answer
just A and C are correct
just B and D are correct
just B is correct
A-E, all are correct
just A, B, C and E are correct
Question 13
Question
Which statements are correct?
(several answers are correct)
Answer
the starting point of the travelling wave in the cochlea is important for the place-pitch coding
loudness is coded by spike rate in the auditory nerve
frequency tuning curves are similar for all auditory neurons
the primary auditory cortex is tonotopically organised
the hearing threshold in humans is similar at all frequencies
Question 14
Question
The most frequent causes of olfactory loss in adults are…