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R.S.SURESH

PGT IN BIOLOGY

Body fluids

And

Circulation

CHAPTER 18

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Our body fluids

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Composition of human

blood

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P_______

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Role of plasma protein

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Serum

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Erythrocytes

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Red bone marrow

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Hemoglobin is a protein that is essential to RBC function.

It transport the gases

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Graveyard of RBC

RBC

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L_______________s

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Which is least and most abundant

percentage

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How can I remember all the names of the WBCs and the order of their abundance?

  • Just remember the phrase: Never let monkeys eat bananas!

                                       

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Why basophil

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Thrombocytes

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Thrombocytes or platelets

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Formation of platelets

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Human Blood groups

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Blood groups

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The Rh blood group

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Figure 19.4

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Erythroblastosis foetalis

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Coagulation of blood

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Lymphatic system

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Formation of lymph

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This animation of a section through a lymph capillary shows how pressure in the interstitial fluid surrounding the capillary pushes open the overlapping cells.

The arrows represent the direction of flow of the lymph.

Note the internal valve which allows the lymph to flow in one direction only.

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Circulatory pathways

Open circulatory system

Closed circulatory system

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HUMAN CIRCULATORY SYSTEM

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Size of a clenched fist

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External view

2

1

3

4

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Internal view

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Septum of the heart

Inter

AV Septum

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Heart valves

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Semilunar valves

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Specialised tissues

Pumping action of the

heart

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CARDIAC CYCLE

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1. Atrial systole

2. Ventricular filling

3.Ventricular diastole

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HEART BEAT AND PULSE

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Stroke volume

Heart rate

Stroke volume

?

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HEART SOUND

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ECG

ECG

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ECG

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ECG waves

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electrodes

gel

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Identify the waves

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Abnormal ECG

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Double circulation

Pulmonary circulation

Systemic circulation

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Coronary circulation

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REGULATION OF CARDIAC ACTIVITY

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REGULATION OF CARDIAC ACTIVITY

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Disorders

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Hypertension

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Blood pressure

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Effect of High BP

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Atherosclerosis(Coronary artery disease)

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Angina

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Heart failure

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Thank U