psych brain things Flashcards
nervous system - flow chart
central nervous system (CNS) and the peripheral nervous system (PNS)
CNS - flow chart
brain –> forbrain, midbrain and hindbrain; and spinal cord
PNS - flow chart
somatic nervous system (SNS) –> sensory and motor nerves and autonomic nervous system (ANS) –> sympathetic nervous systen and parasympathetic nervous system
Central nervous sytem
Enables the brain to communicate with of the body by conveying messages from the CNS to the PNS and from the PNS to the CNS
peripheral nervous system
Communicates info from the body’s organs, glands and muscles to the CNS from both outside and inside world and via motor neurons
Autonomic system
responsible for the communication of info between the CNA and the body’s non-skeletal muscle, internal organs and glands, which carry out the basic bodily functions for survival.
somatic system
responsible for the voluntary movements of muscles - communicates sensry info to the CNS and motor info from the CNS
sympathetic nersous system
Active in a way to prepare us for danger/perception of danger or stress e.g fight, flight or freeze
parasympathetic nervous system
Operates in circumstances where it is relatively calm, responsible for day-to-day functions and keep our bodily functions in a state of balance
Hindbrain
in the lower section of the brain, Supports bodily functions, The link between the spinal cord and the brian, Important for movement and balance
Includes: brainstem, medulla, pons, cerebellum
the medulla
major component of the hindbrain, continues on from the spine, controls breathing, heartbeat and digestion (basic things we don’t really control consciously)
the pons
sits above medulla and receives info sent form visual areas to control body actions
the cerebellum
Receives info from the pons, Role is to coordinate the sequence of body movement
the midbrain
responsible of sleep, motor movement and arousal
forebrain
cerebrum, hypothalamus, and thalamus
the cerebrum
divided into the left and right cerebral hemispheres (right side controls left, left side controls right)
amygdala
central to emtional responses and informing emotional memories
hypothalamus
Important for the basic survival actions: sleep, regulation of body temperature, expressions in emotions and the four ‘f’s’
thalamus
Communications centre of the brain
Receives info from the ears, eyes, skin and other sensory organs, Determines which of the incoming sensory info is the most important for us to pay attention to
the Cerebral cortext
Allows us to undertake a range of tasks, to detect the difference between pieces of info, to understand the meaning of the info and to think in abstract and symbolic ways, enabling creativity in art, writing, debating and the use of metaphor
Primary cortices
Process and interprets incoming sensory information
primary visual cortext - occipital lobe
recieves visual info from the eyes
primary audio cortext - temporal lobe
recieves info from the ears
primary somatosensory cortext - parietal lobe
receives info from sensory receptors on the skin
