LEARNING OUTCOMES
- Understand the basic structure and function of the nervous system.
- Understand the nature of nerve impulses.
- Understand the principles of synaptic transmission.
Unit Assessment Criteria Applied to Assignment
Number of assignments to this unit: One | Nine Written Questions and Answers | |
Page No. where you have covered the assessment criteria | Assessment Criterion:
Please also indicate where you have covered the assessment criteria in your actual submission. |
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1.1. Identify the component parts of the central nervous system and the peripheral nervous system, and state their functions
1.2. Describe the autonomic nervous system 1.3. Describe the structure of a sensory neurone and a motor neurone, and explain their functions in a reflex arc. 2.1 Describe and explain the transmission of an action potential in a myelinated neurone 2.2 Describe the all-or-nothing nature of nerve impulses 2.3 Explain the importance of the myelin sheath and the refractory period in determining the speed of nervous impulses. 3.1 Describe the structure of a cholinergic synapse, and explain how it functions 3.2 Explain the role of synapses in the nervous system in determining the direction of nerve impulse transmission and in allowing the interconnection of nerve pathways 3.3 Describe the causes and effects of synaptic inhibition. |
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Grade Descriptor 1 – Understanding the Subject | GI | ||
For merit: demonstrates a very good grasp of the relevant knowledge base. (M) | For distinction: demonstrates an excellent grasp of the relevant knowledge base (D) | ||
Grade Descriptor 2 – Application of Knowledge | GI | ||
For merit: makes use of relevant: ideas and facts with either: breadth or depth and/or a very good level of insight. (M) | For Distinction: Makes use of relevant: ideas and facts with both: breadth or depth and/or an excellent level of insight. (D) | ||
Grade Descriptor 7 – Quality | GI | ||
For merit: is structured in a way that is generally logical and fluent; Taken as a whole, demonstrates a very good response to the demands of the brief/assignment (M) | For distinction: is structured in a way that is consistently logical and fluent; Taken as a whole, demonstrates an excellent response to the demands of the brief/assignment (D) | ||
Word count guideline: 2000 words
Sanctions apply for graded assessments that exceed the allocated word limit by more than 10% – please see Student Handbook for details.
- You may submit a plan to discuss with your tutor to ensure you are on the right track. Please upload this in the relevant area of the VLE well in advance of the assignment deadline.
- Your completed assignment should be copied onto page 7 of THIS document. Do not upload as separate file.
Assignment
Question 1 (1.1, 1.2)
- Present the nervous system as a flow diagram in a similar format to the one in the example below and label its component parts giving an account of their functions.
- Describe in detail the autonomic nervous system.
Question 2 (1.3)
Using Illustrations, and a short commentary, describe the sensory and motor neuron.
Question 3 (1.3)
Explain, using illustrations, the function of a motor neuron and a sensory neuron in a reflex arc using the example of a knee jerk (patellar) reflex.
Question 4 (2.1)
Describe and explain the transmission of an action potential in a myelinated neurone.
Question 5 (2.2)
Describe the all-or-nothing nature of nerve impulses.
Question 6 (2.3)
Explain the importance of the myelin sheath and the refractory period in determining the speed of nervous impulses.
Question 7 (3.1)
Describe the structure of a cholinergic synapse, and explain how it functions.
Question 8 (3.2)
The illustration below explains the role of synapses. Explain the role of the synapse in the nervous system in determining the direction of nerve impulse transmission, allowing the interconnection of nerve pathways.
Question 9 (3.3)
Describe the role and effect of synaptic inhibition.
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