교과서 질문
More than one choice may apply.
Which parts of the lymph node show increased activity when antibody production is high?
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Ch. 12 The Lymphatic System and Body Defenses
Marieb13th EditionEssentials of Human Anatomy & PhysiologyISBN: 9780135624340
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TOC.tableOfContents
- Ch. 1 The Human Body: An Orientation23
- Ch. 2 Basic Chemistry22
- Ch. 3 Cells and Tissues20
- Ch. 4 Skin and Body Membranes13
- Ch. 5 The Skeletal System38
- Ch. 6 The Muscular System26
- Ch. 7 The Nervous System26
- Ch. 8 Special Senses12
- Ch. 9 The Endocrine System24
- Ch. 10 Blood22
- Ch. 11 Cardiovascular System29
- Ch. 12 The Lymphatic System and Body Defenses21
- Ch. 13 The Respiratory System7
- Ch. 14 The Digestive System and Body Metabolism13
- Ch. 15 The Urinary System23
- Ch. 16 The Reproductive System15
12장, 문제 1
More than one choice may apply.
Lymph capillaries
a. Are open-ended, like drinking straws
b. Have continuous tight junctions, like the capillaries of the brain
c. Contain endothelial cells separated by flaplike valves that can open wide
d. Have special barriers that stop cancer cells from entering
검증된 단계별 안내1
Understand the structure and function of lymph capillaries: Lymph capillaries are small, thin-walled vessels that collect interstitial fluid (lymph) from tissues and transport it to larger lymphatic vessels. They are distinct from blood capillaries in their structure and permeability.
Analyze option (a): Lymph capillaries are not open-ended like drinking straws. Instead, they are closed at one end and form a network that allows fluid to enter through specialized structures.
Analyze option (b): Lymph capillaries do not have continuous tight junctions like the capillaries of the brain. Instead, they are designed to be highly permeable to allow the entry of large molecules and cells.
Analyze option (c): Lymph capillaries contain endothelial cells separated by flaplike valves. These valves open wide to allow interstitial fluid, proteins, and even cells (like immune cells or cancer cells) to enter the lymphatic system.
Analyze option (d): Lymph capillaries do not have special barriers to stop cancer cells from entering. In fact, their high permeability can allow cancer cells to enter and spread through the lymphatic system.
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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
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주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Lymph Capillaries Structure
Lymph capillaries are small, thin-walled vessels that are open-ended, allowing interstitial fluid to enter. Their structure is designed to facilitate the uptake of excess fluid and proteins from tissues, which is crucial for maintaining fluid balance in the body.
추천 영상:
가이드 코스
5:59
General Structure of Capillary Beds
Endothelial Cells and Valves
The endothelial cells of lymph capillaries are not tightly joined; instead, they are separated by flaplike valves. These valves can open to allow larger particles, such as proteins and pathogens, to enter the lymphatic system, which is essential for immune function and fluid regulation.
추천 영상:
7:13Systole, Diastole, Pressure, & Valves
Lymphatic System Function
The lymphatic system plays a vital role in immune response and fluid homeostasis. It helps transport lymph, which contains immune cells, and filters it through lymph nodes, where pathogens and cancer cells can be detected and eliminated, although it does not have specific barriers to prevent cancer cells from entering.
추천 영상:
가이드 코스
3:57Functions of the Lymphatic System
관련 실천
교과서 질문
More than one choice may apply.
Which of the following are part of MALT?
a. Tonsils
b. Thymus
c. Peyer’s patches
d. Any lymphoid tissue along the digestive tract
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교과서 질문
More than one choice may apply.
Which of the following connect to the lymph node at the hilum?
a. Afferent lymphatic vessels
b. Efferent lymphatic vessels
c. Trabeculae
d. Anchoring filaments
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