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Blood Overview and Properties

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Questions and Answers

What is the typical pH range of blood?

7.00 to 7.30

7.35 to 7.45 (correct)

7.50 to 8.00

6.80 to 7.20

Blood is less viscous than water.

False

What is the composition of whole blood?

Cells, cell fragments, and blood plasma

The total blood volume in an adult of 70kg is about ______.

5.5L Signup and view all the answers

Match the following terms with their descriptions:

Arterial blood = Punctured from an artery for special tests Cardiac catheterization = Blood obtained from heart chambers Serum = Liquid left after blood clots Blood plasma = Extracellular fluid in blood Signup and view all the answers

How much blood does an average adult female weighing 70 kg have?

4–5L Signup and view all the answers

Blood clots on standing, leaving behind plasma.

False Signup and view all the answers

What are the formed elements of blood?

Cells and cell fragments Signup and view all the answers

Blood can be sampled using a ______ for tests such as blood pH.

syringe Signup and view all the answers

Study Notes

Blood: An Overview

Blood is a fluid connective tissue circulating within the cardiovascular system's blood vessels.
It comprises formed elements (cells and cell fragments) suspended in blood plasma (extracellular fluid).

Blood: Physical Properties and pH

Blood is denser and more viscous than water, possessing a sticky consistency.
Its pH is slightly alkaline, maintaining a narrow range between 7.35 and 7.45.
Blood clots spontaneously upon standing, leaving serum behind.
An average adult (70kg) has approximately 5.5 liters of blood, about 8% of their body weight (males: 5-6L, females: 4-5L).

Blood Sample Acquisition

Arterial blood, necessary for specific tests like blood pH measurement, is obtained by puncturing an artery using a needle and syringe. This is not a standard procedure.
Cardiac catheterization allows blood sampling from heart chambers for specialized testing via a cardiac catheter.

Homework Assignment

Identify and describe the various blood collection tubes and their respective applications.

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Description

This quiz explores the essential aspects of blood, including its composition, physical properties, and methods of sample acquisition. It covers important details such as blood density, pH, and various testing procedures. Test your understanding of these vital topics in human biology.