Lymphatic System and Immunity Essay

21/04/2013

Lymphatic System & Immunity

Manuel Desco

Dept. Bioingeniería

Principles of Human Anatomy and Physiology, 11e

Anatomy and Physiology We

1

LAUNCH

 The cabability to ward off the pathogens that produce disease is called resistance

– Lack of resistance is called susceptibility

 Resistance to disease can be grouped into two broad areas – Nonspecific resistance: standard defensive systems

effective on the wide range of pathogens

– Defenses: activation of specific lymphocytes that battle a particular virus or other foreign substance

• cell-mediated defenses

• antibody-mediated immunity

 The body program that carries out immune responses is the lymphatic system

Concepts of Body anatomy and Physiology, 11e

Anatomy of human body I

two

1

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LYMPHATIC PROGRAM STRUCTURE AND

FUNCTION

 Lymphatic program:

– Lymph: similar to interstitial

– Lymphatic vessels:

• capillaries vessels nodes trunks � subclavian veins

– Organs engaged

– (specialized reticular muscle containing large numbers of lymphocytes)

red cuboid marrow

thymus

spleen

lymph nodes

diffuse lymphatic tissues

– tonsils, adenoids & peyers patches

Principles of Human Anatomy and Physiology, 11e

Anatomy and Physiology We

3

Human anatomy I

some

Lymphatic Program

Principles of Human Anatomy and Physiology, 11e

2

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Lymphatic Ships & Blood circulation

 Closed-ended lymphatic capillaries

in places between cellular material

– Most body apart from avascular tissue

• (cartilage, epidermis & cornea)

 Combine to create lymphatic vessels

– attaching filaments continue to keep tube

from collapsing beneath outside pressure

– overlapping endothelial cells open the moment

tissue pressure is large (valves)

– Respiratory and muscular pumps

 Inside the GI (lacteal) transport broken down fats

from your small intestine into blood vessels

Principles of Human Anatomy and Physiology, 11e

Anatomy and Physiology My spouse and i

5

Lymph Trunk and Ducts

 Lymph trunks

– shaped from the getting out of vessels of

lymph nodes

 Right side mind, arm & chest clear

into proper lymphatic duct and rest of

body removes the contents into thoracic duct

 The thoracic duct is the central

collecting duct

– This drains lymph into left subclavian

problematic vein

Principles of Human Anatomy and Physiology, 11e

Anatomy and Physiology I actually

6

a few

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Rules of Body anatomy and Physiology, 11e

Anatomy of human body I

six

LYMPHATIC SYSTEM STRUCTURE AND

FUNCTION

 Lymphatic program

functions:

– to drain interstitial liquid

– go back leaked sang

proteins for the blood

– transport fat molecules

from GI to blood vessels

– protect against invasion

by non-specific defenses

and particular immune

replies

Principles of Human Anatomy and Physiology, 11e

Anatomy and Physiology I actually

8

some

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Lymphatic Organs & Tissues

 Widely given away throughout the body

 Main lymphatic bodily organs

– give environment pertaining to stem cells to separate & adult into immunocompetent B and T lymphocytes

• reddish colored bone marrow � N cells and pre-T cells

• thymus � To cells older from pre-T cells

 Secondary lymphatic organs & tissues

– sites wherever most resistant responses take place

• lymph nodes, spleen & lymphatic nodules

Concepts of Human Anatomy and Physiology, 11e

Human anatomy I

being unfaithful

Thymus Sweat gland

 Large organ in infants (70 g) yet atrophied because adult (3 g) – Keeps significant in many animals

 two lobed organ in mediastinum

 Capsule & trabeculae divide

this into lobules

– Every single lobule offers cortex &

medulla

 Before the thymus atrophies,

that populates the secondary lymphatic

organs and tissues with T skin cells

– A lot of T skin cells continue proliferating in the thymus

Principles of Human Anatomy and Physiology, 11e

Anatomy and Physiology I actually

10

your five

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Lymph Nodes [ganglios linfáticos]

 About six-hundred Bean-shaped bodily organs, 1-25 mm long, located

along lymphatic vessels, generally grouped

– scattered...