PSYC 101 Lecture Notes - Lecture 42: Peripheral Nervous System, Reflex Arc, Basal Ganglia
The Nervous system (text & lecture)
• Describe the peripheral nervous system, each of its major divisions, and their respective functions
• Somantic: motor external – afferent (Arrive) and efferent (exit)
• Autonomic: digestive system and other internal things – afferent (arrive) and efferent (exit)
• In the autonomic efferent, parasympathetic: calm and sympathetic: fight or flight
• Describe the function of the spinal cord
• How do reflexes work and why are they necessary?
• Part of the central nervous system
• Reflex arc – ypasses the rai so that we’re ot hurt for too log it takes so uh tie
to go all the way up there
• Describe the major structures of the brain and their respective functions
• Cerebral cortex: parietal (spatial), temporal (auditory), occipital (visual), frontal (processing)
• Subcortical: amygdala (fear), pituitary gland (hormones), hippocampus (memory),
hypothalamus (four fs), thalamus (controls), basal ganglia (movement)
• Midbrain: tectum – orientation tegmentum – movement
• Hindbrain: pons, reticular formation (sleep), cerebellum (balance), medulla (life or death
breathing)
• This should include basic knowledge about the motor and sensory cortices, Broca &
Werike’s areas,
• Brocas: talking
• Wenickes: understanding
• What is contralateral control?
• Controlling the two sides of the brain oppositely
• Be able to explain studies on split brain patients
• Left: anylytical
• Right: creative
• Think about what might occur if a structure was damaged
• EEG: electrical signals
• MRI: hydrogen
• FMRI: blood oxygen
• CT: xray
• PET: glucose
• TMS: enhance or interrupt brain damage
• MEG: tiny magnetic fields
NOTE: You will not be given a diagram of the brain and asked to identify a specific structure
Endocrine System (text only)
• How are hormones different from neurotransmitters?
• They go through blood, so it is slightly slower than neurotransmitters which go through the
brain
• But they are longer lasting
• Know the major hormones and their primary functions
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Document Summary
The nervous system (text & lecture: describe the peripheral nervous system, each of its major divisions, and their respective functions. Somantic: motor external afferent (arrive) and efferent (exit: autonomic: digestive system and other internal things afferent (arrive) and efferent (exit) Subcortical: amygdala (fear), pituitary gland (hormones), hippocampus (memory), hypothalamus (four fs), thalamus (controls), basal ganglia (movement: midbrain: tectum orientation tegmentum movement, hindbrain: pons, reticular formation (sleep), cerebellum (balance), medulla (life or death breathing) This should include basic knowledge about the motor and sensory cortices, broca & Wer(cid:374)i(cid:272)ke"s areas: brocas: talking, wenickes: understanding, what is contralateral control, controlling the two sides of the brain oppositely, be able to explain studies on split brain patients. Think about what might occur if a structure was damaged. Eeg: electrical signals: mri: hydrogen, ct: xray, pet: glucose, meg: tiny magnetic fields. Note: you will not be given a diagram of the brain and asked to identify a specific structure.
