NBB 201 Final Exam Questions And
Correct Detailed Answers.
Facial Signals - Answer -Human facial expressions are species-specific displays
-Controlled from the central gray
Blushing - Answer -Sympathetic nervous system response.
-Pathological blushing treated by cutting nerves from the superior ganglion.
Fear vs. Anger in Facial Expression - Answer Fear:
-Eyebrows raised and pulled together.
-Raised upper eyelids.
-Tensed lower eyelids
-Lips slightly stretched horizontally back to ears.
Anger:
-Eyebrows down and together.
-Eyes glare
-Narrowing of the lips
Not able to recognize facial expressions: - Answer Bilateral brain lesions in the amygdala: a
region of the medial temporal lobe known to be critical for the perception of fear.
Eye Whites - Answer -Human amygdala able to distinguish facial expression by only whites of
eyes.
-Fear usually shows the most white.
Autonomic Balance (ANS) - Answer -SNS: sympathetic nervous system regulates fear and flight
-PNS: Parasympathetics nervous system regulates digestion, etc.
**balance determines physiological state.
SNS - Answer Sympathetics Nervous System
, -Relaxes bladder
-Stimulates Ejaculation
-Stimulates secretion by sweat glands.
-Relaxes Airways
PNS - Answer Parasympathetics Nervous System
-Constricts pupils
-Stimulates salivation
-Slows heartbeat
-Constricts airways
-Dilates blood vessels
-Contracts bladder
-Stimulates erection.
SNS and Fear - Answer -Fight or flight parts of the ANS
-Increases heart rate, breathing, sweating
-Dilates pupils, empties bladder, stimulates ejaculation
-Heightens senses
-Postganglionic synapses: noradrenergic (NA= norepinephrine, NE)
-Adrenaline (epinephrine, E), augmentation
The "Smart Vagus" Model - Answer 1. Primitive vagus was solely parasympathetics: causes
freezing in danger.
2.Reptilian vagus adds sympathetic component, may cause fight or flight instead.
3. Mammals add fast component, modulates heart rate in social behavior
Peripheral vision and fear - Answer -Frontal lobe and right internal temporal lobe reacted 80
ms to fear triggered in the peripheral vision
Limbic System: Core Structures - Answer -Paleomammalian brain
-Feeding, fleeing, fighting, and sex
-Emotional brain
Correct Detailed Answers.
Facial Signals - Answer -Human facial expressions are species-specific displays
-Controlled from the central gray
Blushing - Answer -Sympathetic nervous system response.
-Pathological blushing treated by cutting nerves from the superior ganglion.
Fear vs. Anger in Facial Expression - Answer Fear:
-Eyebrows raised and pulled together.
-Raised upper eyelids.
-Tensed lower eyelids
-Lips slightly stretched horizontally back to ears.
Anger:
-Eyebrows down and together.
-Eyes glare
-Narrowing of the lips
Not able to recognize facial expressions: - Answer Bilateral brain lesions in the amygdala: a
region of the medial temporal lobe known to be critical for the perception of fear.
Eye Whites - Answer -Human amygdala able to distinguish facial expression by only whites of
eyes.
-Fear usually shows the most white.
Autonomic Balance (ANS) - Answer -SNS: sympathetic nervous system regulates fear and flight
-PNS: Parasympathetics nervous system regulates digestion, etc.
**balance determines physiological state.
SNS - Answer Sympathetics Nervous System
, -Relaxes bladder
-Stimulates Ejaculation
-Stimulates secretion by sweat glands.
-Relaxes Airways
PNS - Answer Parasympathetics Nervous System
-Constricts pupils
-Stimulates salivation
-Slows heartbeat
-Constricts airways
-Dilates blood vessels
-Contracts bladder
-Stimulates erection.
SNS and Fear - Answer -Fight or flight parts of the ANS
-Increases heart rate, breathing, sweating
-Dilates pupils, empties bladder, stimulates ejaculation
-Heightens senses
-Postganglionic synapses: noradrenergic (NA= norepinephrine, NE)
-Adrenaline (epinephrine, E), augmentation
The "Smart Vagus" Model - Answer 1. Primitive vagus was solely parasympathetics: causes
freezing in danger.
2.Reptilian vagus adds sympathetic component, may cause fight or flight instead.
3. Mammals add fast component, modulates heart rate in social behavior
Peripheral vision and fear - Answer -Frontal lobe and right internal temporal lobe reacted 80
ms to fear triggered in the peripheral vision
Limbic System: Core Structures - Answer -Paleomammalian brain
-Feeding, fleeing, fighting, and sex
-Emotional brain
