Question

11std biology body fluids and circulation

Answer 1

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Body fluid :-

Body fluids are liquids originating from inside the bodies of living humans. They include fluids that are excreted or secreted from the body. Human blood, body fluids, and other body tissues are widely recognised as vehicles for the transmission of human disease.


Types of body fluid:-

1. intracellular body fluid
2. Extracellular body fluid

1. Intracellular body fluid:-
The fluid of each cell contains its individual mixture of different constituents, but the concentrations of these substances are similar from one cell to another. The composition of cell fluids is remarkable, similar even in different animals, ranging from the micro-organisms to humans.

2. Extracellular Fluid (ECF):

Extracellular fluid includes the following:

(i) Interstitial fluid (= tissue fluid):

It is present in between the tissues. Interstitial fluid resembles sea water.

(ii) Blood Plasma:

It is found in the blood.

(iii) Lymph Plasma:

It is present the lymph.

(iv) Cerebrospinal Fluid (CSF):

It is present inside the ventricles of the brain, the central canal of the spinal cord and in the subarachnoid space around the brain and spinal cord.

(v) Intraocular Fluid:

This fluid is found in the eye ball, e.g., aqueous humour and vitreous humour.

(vii) Synovial Fluid:

It is present in the joints.

(viii) Digestive Fluid:

Digestive juices are the examples of digestive fluid.

(ix) Fluid in Urinary Tract:

This fluid is present in the tract of excretory system.
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Blood circulation:-

The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulationcarries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.

Blood circulation between the heart and lungs , and into the body Institute for Quality and of the heart; the middle of the three layers forming the outer wall of the human heart.

Function of blood circulation:-

<> The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulationcarries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.

<> The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulationcarries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.

<> The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulationcarries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.

<> The systemic circulation provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulationcarries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.


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