Assignment brief The Nervous System

Outcome 4: Be able to have knowledge of the nervous system

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The Nervous System assignment-

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State the Nervous system structures, describe their location and explain their functions:
1. Name the structure, location and functions of the nervous system structures:

• Central nervous system (CNS)
– brain, spinal cord, white matter, grey matter, meninges (pia mater, arachnoid mater, subarachnoid space, dura mater), cerebrospinal fluid, blood brain barrier, cerebrum, cerebellum, thalamus, hypothalamus, pituitary, pineal, brain stem (midbrain, pons varolii, medulla oblongata).
• Peripheral nervous system (PNS)
– spinal nerves (31pairs), spinal nerve plexus (cervical, brachial, lumbar, sacral, coccygeal), cranial nerves (12 pairs).
• Autonomic nervous system (ANS)
– sympathetic and parasympathetic divisions.

2. Label the structure of a neurone and explain the role of each:
dendrite, cell body, axon, axon end terminals, neurotransmitters, myelin sheath, nodes of ranvier, neurolemma reflex arc, synapse, motor point.

3. Neurones: State the types, location and explain the functions: sensory, motor, interneuron.

4. Neuroglia: State the types, location and explain the functions: schwann cells, oligodendrocytes, astrocytes

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