module 3b Flashcards
(35 cards)
define neural network
complex connections between dendrites and axons
What does your CNS consist of
brain and spinal cord
If an electrical impulse is being carried away from your CNS to trigger neurotransmitters or hormones. what would the axons be called?
afferents
efferents
efferents
define afferents
carrying impulses back to CNS from muscles or organs
Do we have more neurons at birth or as an adult
Birth.
We lose neurons due to their inefficiency or damage but as we grow, we grow new branches on dendrites and produce more or less neurotransmitters and receptors.
neurons and their networks are able to change what process is this known as?
continuity
adaption
neuroplasticity
neurocentral
neuroplasticity
what is mirror box therapy
the conscious processing of sensory input and the most outer layer of brain is
medulla
cerebellum
neocortex
pons
neocortex
what part of your brain control unconscious processing such as heartbeat, breathing, and other basic functions
medulla
what is the difference between somatic and autonomic
somatic control movement of head and body (communicates with skeletal muscles while autonomic deals with more automatic process (communicates with smooth muscle, cardiac muscle)
what part of the nervous system allows you to recover, digest and get aroused.
Parasympathetic nervous system
sympathetic nervous system
Parasympathetic nervous system
when you are frightened your heart rate may increase, your pupils may dilate, Blood flow would be routed toward all the systems that would help them fight or escape and away from systems involved in digestion or growth and repair. what nervous system is this
Parasympathetic nervous system
sympathetic nervous system
sympathetic nervous system
There is a network of cells in the pons and medulla that help to regulate our awareness and alertness what is it called
reticular activating system
the Reticular activating system acts as a bridge what does it connect to?
spinal cord and thalamus
what two functions does reticular activating system regulate
- Level of arousal
- alertness to tasks, people and objects
basically acting like a filter
the dysfunction of the RAS is starting to be linked to what disorder
adhd
What is the purpose of the limbic system
Dedicated to regulating emotions, regulating endocrine systems, and forming emotional memories. Connecting primitive parts of the brain with new ones
which of the following part of the brain is NOT apart of the limbic system
prefrontal cortex
the olfactory (smell) cortex
the amygdala
the hippocampus
the cingulate gyrus
hypothalamus
none of the above
none of the above
what part of our brain is responsible to activate our fear response and more active when learning to be fearful. It also activates our adrenaline and our aggression response to threats and romantic love.
the hippocampus
amygdala
hypothalamus
amygdala
the amygdala calculates our
physical reaction to a stimulus
emotional value and intensity of a stimulus
emotional value and intensity of a stimulus
what happens to an animal if they have an amygdalectomy? humans?
They become docile and snuggle up to the thing they used to be afraid of.
They lose emotion and tend to respond inappropriately to situations
Some people may suffer from anxiety this has been linked to
underactive amygdala
overactive amygdala
overactive amygdala
the hippocampus is responsible for
motor skills
filtering emotional stimulus
forming new memories
fear response
forming new memories
when does the cingulate gyrus become more active
when we experience unpleasant things (pain or social exclusion)
