Shared Flashcard Set

Details

Orofacial Neurobiology - Lecture 03
Facial Expression
21
Other
Professional
03/29/2012

Additional Other Flashcards

 


 

Cards

Term
Expressive facial displays come from these two categories.
Definition

1. Drives & Emotions

2. Cuture, Learning and Intent

Term
This is the function of expressive facial displays.
Definition
Social organization
Term
This is the function of subjective experience.
Definition
Self regulation
Term
This is the function of autonomic, endocrine and immune roles.
Definition
Homeostasis
Term
Expressive displays are accessible to ________.
Definition
Others around you
Term
The subjective experience is accessible to ________.
Definition
Self
Term
T/F: People with blindsight cannot touch a dot on the wall but think they can.
Definition
False. Rather, they think they cannot see a spot on the wall yet are often able to touch it.
Term
In this disorder, a person can see fine but has an incorrect emotional response to what they see (e.g. a man can recognize his mother on the phone but when he sees her he thinks she is an imposter).
Definition
Capgras' Syndrome
Term
How many pairs of facial muscles are there?
Definition
>20
Term
Muscles of facial expression originate and insert here.
Definition
Skin
Term
T/F: Because they are small, facial muscles can atrophy quickly in conditions such as Bell's Palsy.
Definition
False. They are very slow to atrophy when not used.
Term
T/F: Efferent information is sent to the facial muscles via CN VII but afferent information from muscle spindles is recorded via CN V.
Definition
False. Facial muscles do not have muscle spindles.
Term
T/F: Cortical projections to the facial muscles are bilateral.
Definition
False. Projections to the upper half are bilateral but only contralateral to the lower half.
Term
Voluntary facial expressions originate in the ________ while involuntary facial expressions originate in the ________ (a general term) areas of the brain.
Definition
Cortex; Emotional 
Term
A spontaneous smile originates in this region of the brain.
Definition
Basal Ganglia
Term
Smile commands (both voluntary and involuntary) are sent to this region of the brainstem.
Definition
Facial Nucleus
Term
T/F: According to the lecture, spontaneous smiles are typically symmetrical.
Definition
True
Term
How long does a spontaneous smile last?
Definition
.5-4 seconds
Term
What characteristic is unique about the beginning and end of a spontaneous smile?
Definition
Smooth onset and completion
Term
T/F: A stroke can cause the loss of both spontaneous and posed smiles.
Definition
True
Term
T/F: Bell's Palsy is not a central deficit.
Definition
True
Supporting users have an ad free experience!