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

2. Cell Chemistry & Cell Components

Introduction to Membrane Transport

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Membrane Transport

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Multiple Choice

Peristaltic waves are:

the diffusion of solutes from high to low concentration

the movement of water across a semipermeable membrane

waves of muscular contractions that move contents through a tubular organ

electrical impulses that travel along nerve fibers

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Verified step by step guidance

Understand the term 'peristaltic waves': Peristalsis refers to the rhythmic, wave-like muscular contractions that occur in tubular organs, such as the esophagus, stomach, and intestines, to propel contents forward.

Identify the key anatomical structures involved: Peristaltic waves are generated by the smooth muscle layers in the walls of tubular organs. These muscles contract and relax in a coordinated manner to create the wave-like motion.

Differentiate peristalsis from other physiological processes: Peristalsis is distinct from diffusion (movement of solutes from high to low concentration) and osmosis (movement of water across a semipermeable membrane). It is a mechanical process driven by muscle contractions, not passive transport.

Relate peristalsis to its function: The primary purpose of peristaltic waves is to move food, waste, or other contents through the digestive tract or other tubular systems in the body, ensuring proper digestion and excretion.

Connect peristalsis to nervous system control: Peristaltic waves are regulated by the enteric nervous system, which coordinates the contraction and relaxation of smooth muscles in response to stimuli, ensuring efficient movement of contents.