psych unit 1 aos 1 Flashcards
(30 cards)
somatic nervous system
the division of the peripheral nervous system that controls the body’s skeletal muscles
- voluntary movements
- sensory neurons
- motor neurons
autonomic nervous system
The part of the PNS that controls the glands and the muscles of the internal organs.
- heartbeat
- digestion
- circulation
sympathetic nervous system
the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations
parasympathetic nervous system
the division of the autonomic nervous system that calms the body, returning us to homeostasis
spinal cord
Nerves that run up and down the length of the back and transmit most messages between the body and brain
In which way do neurons travel to and from the CNS
sensory neurons carry nerve impulses from the sensory stimuli to the CNS and Brain and motor neurons carry the nerve impulses to the sensory stimuli from the cns and brain
afferent neurons
sensory neurons that carry nerve impulses from sensory stimuli towards the central nervous system and brain
efferent neurons
motor neurons that carry neural impulses away from the central nervous system and towards muscles to cause movement
Forebrain
upper level structures- higher order thinking processes eg. problem solving and planning
midbrain location and function
co-ordinated movement, sleep and arousal
Hindbrain location and function
a link between the spinal cord and the brain that contains structures such as brainstem, pons, cerebellum and medulla that regulate physiological functions, including heart rate, respiration, and blood pressure
cerebral cortex location and function
outer layer of the brain, that is responsible for higher mental processes and complex behaviours - contains the four lobes
corpus callosum location and function
the large band of neural fibres that connect the right and left hemispheres of the cerebral cortex
hippocampus location and function
part of the limbic system that is responsible for long term memory and spatial orientation
amygdala location and function
A limbic system structure involved in memory and emotion, particularly fear and aggression.
Brain stem location and function
regulates reflex survival responses
pons location and function
controls movement, breathing, sleeping, dreaming and waking
cerebellum location and function
perception and cognition, balance and fine muscle control.
medulla location and function
heartbeat, breathing and other vital bodily functions
hypothalamus location and function
regulates emotions and ‘instinctive’ drive - responsible for maintaining homeostasis
reticular formation location and function
important in the control of arousal in the sleep/wake cycle. Also part of both midbrain and hindbrain
frontal lobe location and function
associated with reasoning, planning, parts of speech, movement, emotions, and problem solving
primary motor cortex location and function
voluntary movement
prefrontal cortex location and function
part of frontal lobe responsible for thinking, planning, and language - underdeveloped in adolescents