Module 2: The Blood

Figure 2.1.  This image primarily shows red blood cells, also known as erythrocytes. These cells are characterized by their bi-concave disc shape. The white blood cell with the dark, purplish, multi-lobed nucleus is a neutrophil, a type of white blood cell or leukocyte. The smaller, spikey objects are platelets.

Image: Red blood cells.  Source: National Cancer Institute, Donald Bliss (Illustrator), Wikimedia Commons

Module Overview:

Human blood is a fluid medium composed of red blood cells, white blood cells, plasma, and proteins.  It is a connective tissue that functions as a dynamic and efficient transport system.  As a transport system, blood plays an essential role in delivering crucial elements such as  oxygen and glucose to every cell, ensuring not only their proper function but also their vitality and health.  Beyond nourishment, blood also performs the critical task of removing metabolic waste products generated by cellular activity. This removal process is essential for sustaining a stable internal environment, a delicate balance known as homeostasis. Homeostasis allows the body to function optimally, maintaining health and promoting overall well-being. 

To achieve these objectives:

1. Read the Module 2 Introduction
2. Read Chapter 2 in the textbook 
   
3. Complete the activities below: 

Module Pressbooks Resources and Activities

You will find the following resources and activities in this module at the Pressbooks website. Click on the links below to access or complete each item.