Week Four Flashcards
In the human cochlea the part of the basilar membrane furthest from the oval window codes…
Low frequencies, whereas closer to the oval window is high frequencies
The motor systems is closely linked to…..
The somatosensory system
What is the word for our perception of the location of one’s body in space…
Proprioception
The primary somatosensory cortex is found in the……..,whilst the secondary somatosensory cortex is located in the ……..
Postcentral gyrus - primary. Parietal lobe - secondary
What will cause a muscle to relax….
The absence of acetylcholine
There is a feedback system that opposes sudden stretches where does it start
In the Muscle spindles
What is the characteristic of a ballistic reflex movement….
A ballistic reflex movement is characterised by the fact it proceeds automatically once it has been triggered.
The intensity of sound is called…
Amplitude
At what dB does sound cause pain
130 dB
The same note played on one instrument then another is identifiable by the
The timbre of the sound
Where is the pinna located
It’s the part of the ear we see on the side of the head
The organ of corti is responsible for ….
The Organ of Corti translates vibrations in the inner ear into neural messages
What area is activated by complex types of stimuli such as clicks or general bursts of noise.
The secondary auditory cortex.
What does tonotopic organisation mean
Tonotopic organisation means that different frequencies are processed in different locations
The binaural neurons are involved in localisation of sound and are located in the….
Binaural neurons are located in the superior olive
Conduction loss is…
Conduction loss is hearing loss resulting from problems in the outer or middle ear.
Vibrations from a loud stereo can be sensed in which corpuscles
Pacinian corpuscles can sense vibration
What mechanoreceptor has a small receptive field and rapid rates of adaptation….
Meissners corpuscles
If warm water activates your warm receptors which fibres would you expect to be activated
C fibres would be activated
How does the cochlear implant work….
The cochlear implant works by stimulating the auditory nerve electrically.
The sensory organs of the vestibular system are found in the….
Inner ear
Olfaction begins with the
Detection of molecules suspended in the air.
The neural receptors for olfaction are contained within the
The neural receptors for olfaction are contained within the olfactory epithelium
Olfaction is unique among the major senses in that..
information travels to the neocortex without synapsing in the thalamus.
Food substances need to be dissolved in….. In order to be tasted
Saliva
The ventral posterior medial nucleus receives information about taste ….
in the thalamus
Blocking the release of what neurotransmitter would cause problems with movement at the neuromuscular junction
Blocking the neurotransmitter Acetylcholine
Muscles that straighten joints are referred to as….
Extensors so are the muscles that straighten joints
Alpha motor neurons are directly responsible for….
Contracting muscles
Which neurons give the brain information about how far a muscle has strecthed and gives fine limb position.
The gamma motor neurons c”a. I’m
The Golgi tendon organs give us information regarding what about muscles…..
Contraction and or force of the muscle
When we stretch we receive information about how far we’re stretching from…..
Muscle spindles
The patellar tendon reflex or knee jerk reaction is an example of a
Mono synaptic reflex
Our perception of loudness is due to…..
Our perception of loudness is due to the frequency of sound waves.
