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Ch. 9 Joints
Martini - Fundamentals of Anatomy & Physiology 11th Edition
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Martini, Nath, Bartholomew 11th EditionCh. 9 Joints문제 7
9장, 문제 7

Which of the following is not a function of synovial fluid?
(a) Shock absorption
(b) Nutrient distribution
(c) Maintenance of ionic balance
(d) Lubrication of the articular surfaces
(e) Waste disposal

검증된 단계별 안내
1
Step 1: Understand what synovial fluid is and where it is found. Synovial fluid is a viscous fluid found within the cavities of synovial joints, serving to reduce friction between the articular cartilage of synovial joints during movement.
Step 2: Review the known functions of synovial fluid. These include shock absorption, lubrication of articular surfaces to reduce friction, nutrient distribution to cartilage (which is avascular), and waste disposal by carrying away metabolic waste from chondrocytes.
Step 3: Analyze each option in the context of synovial fluid functions: (a) Shock absorption - synovial fluid helps cushion joints; (b) Nutrient distribution - it transports nutrients to cartilage; (c) Maintenance of ionic balance - consider whether synovial fluid regulates ionic concentrations actively; (d) Lubrication of articular surfaces - synovial fluid lubricates joints; (e) Waste disposal - it removes waste products from cartilage.
Step 4: Identify which function is not typically attributed to synovial fluid. Maintenance of ionic balance is generally regulated by cellular mechanisms and blood plasma, not directly by synovial fluid.
Step 5: Conclude that the correct answer is the function that synovial fluid does not perform, which is maintenance of ionic balance.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Functions of Synovial Fluid

Synovial fluid is a viscous liquid found in joint cavities that serves multiple roles, including lubricating articular surfaces to reduce friction, absorbing shocks during movement, distributing nutrients to cartilage, and removing metabolic waste. Understanding these functions helps identify which options correctly describe its roles.
추천 영상:
가이드 코스
8:20
Synovial Joints

Shock Absorption in Joints

Shock absorption refers to the ability of synovial fluid to cushion joints against impact forces during activities like walking or running. This property protects the cartilage and underlying bone from damage by dissipating mechanical stress.
추천 영상:
가이드 코스
8:20
Synovial Joints

Ionic Balance and Homeostasis

Ionic balance involves maintaining stable concentrations of ions like sodium, potassium, and calcium in bodily fluids. While important in many physiological processes, synovial fluid primarily focuses on lubrication and nutrient transport rather than regulating ionic balance.
추천 영상:
가이드 코스
06:07
Ionic Bonds
관련 실천
교과서 질문

Subacromial, subcoracoid, and subscapular bursae reduce friction in the____joint.

(a) hip

(b) knee

(c) elbow

(d) shoulder

39
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교과서 질문

Joints typically located between the ends of adjacent long bones are

(a) Synarthroses

(b) Amphiarthroses

(c) Diarthroses

(d) Symphyses

41
views
교과서 질문

The hip is an extremely stable joint because it has

(a) A complete bony socket

(b) A strong joint capsule

(c) Supporting ligaments

(d) All of these

85
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교과서 질문

The function of the articular cartilage is:

(a) To reduce friction

(b) To prevent bony surfaces from contacting one another

(c) To provide lubrication

(d) Both a and b

44
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교과서 질문

Although the knee joint is only one joint, it resembles____ separate joints.

(a) two

(b) three

(c) four

(d) five

(e) six

49
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교과서 질문

The anterior joint between the two pubic bones is a

(a) Synchondrosis

(b) Synostosis

(c) Symphysis

(d) Synarthrosis

50
views