The Nervous System
Learning Time: 5-15 hours
Content: The nervous system is a complex network that enables living things to respond to environmental stimuli and coordinate bodily functions. This topic covers the basic structure of the nervous system (central and peripheral nervous systems), the structure and functions of neurons, and nerve conduction (action potentials and synapses). The TYT curriculum emphasizes reflex arcs, the functioning of the senses, and the basic characteristics of the vertebrate nervous system. The current 2025 Turkish high school biology curriculum also provides a brief introduction to modern developments such as diseases of the nervous system (e.g., multiple sclerosis) and neurological technologies (brain-computer interfaces). A sound understanding of this topic is critical to grasping both biological processes and fundamental concepts related to health.
- Central Nervous System:
- Brain (Cerebrum, Cerebellum, Brainstem)
- Spinal Cord (Functioning of Reflex Arc)
- Peripheral Nervous System:
- Somatic Nervous System (Skeletal Muscle Control)
- Autonomic Nervous System (Sympathetic and Parasympathetic Systems)
- Neuron Structure and Functions:
- Parts of the Neuron (Dendrite, Axon, Myelin Sheath)
- Nerve Transmission (Action Potential Generation)
- Nerve Transmission and Synapses:
- Chemical Synapse (Neurotransmitter Release)
- Electrical Synapse (Example of Fast Conduction)
- Senses and Reflexes:
- Vision (Retina and Photoreceptors)
- Reflex Arcs (Knee Pull Reflex)
Course Features
- Lectures 0
- Quizzes 0
- Duration 5 hours
- Skill level Expert
- Language English
- Students 15
- Assessments Yes






