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

8. Joints

Structural Class: Synovial Joints

Anatomy & Physiology

8. Joints

Structural Class: Synovial Joints

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Problem 1

Textbook Question

Which of the following is not a function of articulations?
a. Movement
b. Blood cell formation
c. Stability
d. Providing growth in length for long bones

Verified step by step guidance

Step 1: Begin by understanding the term 'articulations.' Articulations, also known as joints, are the points where two or more bones meet. Their primary functions include enabling movement, providing stability, and facilitating growth in length for long bones during development.

Step 2: Analyze each option provided in the question to determine whether it aligns with the functions of articulations. For example, movement is a key function of joints, as they allow bones to move relative to one another.

Step 3: Consider the role of articulations in stability. Certain types of joints, such as immovable or slightly movable joints, contribute to the stability of the skeletal system.

Step 4: Evaluate the option 'providing growth in length for long bones.' During development, growth plates (epiphyseal plates) located at the ends of long bones are associated with articulations and contribute to bone growth in length.

Step 5: Examine the option 'blood cell formation.' Blood cell formation, or hematopoiesis, occurs in the bone marrow, which is not a function of articulations. Therefore, this option does not align with the functions of joints.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Functions of Articulations

Articulations, or joints, serve several key functions in the human body, including facilitating movement, providing stability, and allowing for growth in length in certain bones. They connect bones and enable a range of motions, from simple hinge movements to complex rotations, depending on the type of joint.

Types of Joints

Joints can be classified into several types, including synovial, fibrous, and cartilaginous joints. Synovial joints, such as the knee and elbow, are particularly important for movement and flexibility, while fibrous joints, like those in the skull, provide stability and minimal movement.

Hematopoiesis

Hematopoiesis is the process of blood cell formation, primarily occurring in the bone marrow. While bones play a crucial role in this process, it is not a direct function of articulations themselves, which are primarily involved in movement and stability rather than blood cell production.

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Related Practice

Multiple Choice

Which of the following is a unique feature of synovial joints?

Which of the following statements accurately describes weeping lubrication in synovial joints?

What role does articular cartilage play in synovial joints?

Imagine you're a doctor and a patient comes to you because of pain in their knee joint. You find that there is not enough synovial fluid present in their knee's synovial cavity, leading to friction when the knee moves. Which of the following structures in the knee joint is not functioning correctly?

Explain how the structure of each of the following joint types follows its function.

Synovial joint

Which of the following is not a distinguishing feature of a synovial joint?

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