Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

The lowest level of the motor control hierarchy is the __________.

projection level

segmental level

cerebellar level

precommand level

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Verified step by step guidance

Understand the motor control hierarchy: The motor control system is organized into different levels, each responsible for specific functions. These levels include the segmental level, projection level, and precommand level.

Define the segmental level: The segmental level is the lowest level of motor control. It involves reflexes and automatic movements controlled by the spinal cord circuits. This level is responsible for basic motor patterns such as walking and withdrawal reflexes.

Define the projection level: The projection level is the middle level of motor control. It includes the motor cortex and brainstem nuclei, which send signals to the spinal cord to control voluntary movements.

Define the precommand level: The precommand level is the highest level of motor control. It involves the cerebellum and basal nuclei, which plan and coordinate movements before they are executed.

Compare the levels: Based on the definitions, the segmental level is the lowest level of the motor control hierarchy, as it handles basic reflexes and automatic movements without higher-level processing.