Zusammenfassung der Ressource
The human nervous system
- central nervous system (CNS)
- brain
- spinal cord
- peripheral nervous system (PNS)
- automatic nervous system (ANS)
- sympathetic nervous system
- parasympathetic nervous system
- voluntary nervous system (VNS)
- sensory neurons
- motor neurons
- From stimulus to reaction
- stimulus
- sensor
- sensory neurons
- CNS
- motor neurons
- effector
- reaction
- Neuron structure and
conduction process (1-6)
- 1. dendrites
- 2. cell body (soma)
- cell organelles (neucleus...)
- 3. axon hillock
- 4. axon
- insulating sheath
- 5. synaptic terminal
- 6. synapse
- other neurons
- gland cells
- muscle cells
- A. AP reaches synaptic
terminal. Synaptic vesicles
fuse with cell membrane.
- B. Synaptic vesicles
release
neurotransmitter
into synaptic cleft.
- C. Neurotransmitter
binds to receptor
(target cell)
- D. An electrical
impulse is triggered
(auslösen).
- E. Neurotransmitter is
recycled in the
synaptic terminal.
- Neurotransmitter = Botenstoffe
- Neurotoxin
- nicotine
- botox
- flying agaric (Fliegenpilz),
deadly nightshade
(Tollkirsche)
- black widow spider bite
- saltatory conduction
- continous conduction