Download Lesson 17 Somatic Nervous System. Motor System Skeletal muscles

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Lesson 17 Somatic Nervous System. Motor System
1. Skeletal muscles. Functions of the skeletal muscles. Skeletal muscle tissue properties. Types of
muscle contraction. Conceptual motor control hierarchy.
2. Motor units function as a single unit all or none principle. Factors affecting muscle tension
development. Number of muscle fibers per motor unit. Summation.
3. Organization of motor function by the spinal cord. Spinal cord reflexes. Proprioception. Muscle
spindles. Stretch reflex. Knee jerk or patella tendon reflex. Golgi tendon organ. Goldgi tendon
reflex. Crossed-extensor reflex.
4. Control of posture and movement by the brain stem.
5. Motor pathways. Pyramidal tract and the extrapyramidal tract. Decerebrate rigidity.
6. Cerebellum. Functional subdivision of cerebellum.
7. Basal ganglia.
8. Motor cortex. Primary motor cortex, supplementary motor cortex, premotor cortex.
Homework
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Functions of the Skeletal Muscles.
Types of muscle contraction
Motor unit. Factors affecting muscle tension development.
Functions of the pyramidal tract
Functions of the extrapyramidal tract
Define the Decerebrate rigidity
Draw and describe Knee jerk or patella tendon reflex.
Draw and describe Goldgi tendon reflex.
Draw and describe Crossed-Extensor Reflex.
Cerebellum. Functional subdivision of cerebellum
Functions of the basal ganglia
Areas and Functions of the motor cortex.
Practical work
1. Knee jerk or patella tendon reflex.
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