Post by account_disabled on Feb 27, 2024 8:47:40 GMT
The is an intricate network of voluntary and involuntary muscles many of which can be activated independently of each other. signals with specific communicative purposes among which the sharing of information regarding our emotional state with others stands out. We call these signals facial expressions. Almost all facial muscles are innervated by the facial nerve also called the seventh cranial nerve. The facial nerve is activated by two regions of the brain Directly from the brainstem a very ancient part of our brain that all animals have even reptiles. From the motor cortex which sends signals to the brainstem via a descending pathway.
The motor cortex unlike the brain stem is younger in the history Ghana Phone Number of evolution and only we humans and to a lesser extent some mammals can benefit from its functions. Facial nerve The facial nerve activated directly from the brain stem unravels from the skull to an area slightly below the ear and branches out to all the muscles just like a tree see the figure on the right. The facial nerve is responsible here for all spontaneous and involuntary facial expressions which therefore cannot be controlled. Have you ever felt like you couldnt control your face so much so that it was.
Obvious what you were feeling without even speaking Well in these cases the responsibility lies precisely with the facial nerve which cannot lie since its activation is automatic and very rapid. Neuroimaging studies carried out with functional magnetic resonance imaging fMRI Functional Magnetic Resonance Imaging have identified a small portion of our deep brain responsible for the activation of the facial nerve the amygdala. Thanks to the amygdala when we walk in the woods and out of the corner of our eye we see a snake we immediately sprint in the opposite direction saving ourselves in a fraction of a second.
The motor cortex unlike the brain stem is younger in the history Ghana Phone Number of evolution and only we humans and to a lesser extent some mammals can benefit from its functions. Facial nerve The facial nerve activated directly from the brain stem unravels from the skull to an area slightly below the ear and branches out to all the muscles just like a tree see the figure on the right. The facial nerve is responsible here for all spontaneous and involuntary facial expressions which therefore cannot be controlled. Have you ever felt like you couldnt control your face so much so that it was.
Obvious what you were feeling without even speaking Well in these cases the responsibility lies precisely with the facial nerve which cannot lie since its activation is automatic and very rapid. Neuroimaging studies carried out with functional magnetic resonance imaging fMRI Functional Magnetic Resonance Imaging have identified a small portion of our deep brain responsible for the activation of the facial nerve the amygdala. Thanks to the amygdala when we walk in the woods and out of the corner of our eye we see a snake we immediately sprint in the opposite direction saving ourselves in a fraction of a second.