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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 Heart2h 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

13. The Peripheral Nervous System

Introduction to Reflex Arcs

Anatomy & Physiology

13. The Peripheral Nervous System

Introduction to Reflex Arcs

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Multiple Choice

Choose the true statement.

Stretch reflexes are hyperactive in comatose patients.

The flexor reflex is initiated by painful stimuli.

The knee jerk reflex is an example of a superficial reflex.

The abdominal reflex is an example of a tendon reflex.

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Verified step by step guidance

Begin by understanding the different types of reflexes mentioned in the problem: stretch reflex, flexor reflex, superficial reflex, and tendon reflex.

The stretch reflex is a muscle contraction in response to stretching within the muscle. It is typically not hyperactive in comatose patients; rather, it may be diminished or absent.

The flexor reflex, also known as the withdrawal reflex, is initiated by painful stimuli. This reflex causes the body to withdraw from the source of pain, which is a protective mechanism.

The knee jerk reflex, or patellar reflex, is a type of stretch reflex, not a superficial reflex. Superficial reflexes are elicited by gentle stimulation of the skin, such as the abdominal reflex.

The abdominal reflex is a superficial reflex, not a tendon reflex. Tendon reflexes involve the contraction of muscles in response to a stretch applied to the tendon, such as the knee jerk reflex.