The Cardiovascular and Muscular Systems

2798 Words12 Pages
Viviana Colon
Professor Jill McMillin
G150/PHA1500 Section 08 Structure and Function of the Human Body
May 30, 2010

The Cardiovascular and Muscular Systems

Organ system is a group of organs that work together to perform a certain task. Humans have a variety of systems due to the complexity of the species' organism. The human body consists of biological systems, that consist of organs, that consist of tissues, that consist of cells and connective tissue. Although an organ has a specific function, organs also function as part of a group. The organ system is the organizational unit by which medicine is studied, diseases are generally categorized, and treatments are planned. Homeostasis is self-regulation of a
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Two types of fluids move through the circulatory system: blood and lymph. The blood, heart, and blood vessels form the cardiovascular system. The lymph, lymph nodes, and lymph vessels form the lymphatic system. The cardiovascular system and the lymphatic system collectively make up the circulatory system. The human body contains more than 650 individual muscles which are attached to the

skeleton, which provides the pulling power for us to move around. The main job of the muscular

system is to provide movement for the body. The muscular system consist of three different

types of muscle tissues : skeletal, cardiac, smooth. Each of these different tissues has the ability

to contract, which then allows body movements and functions? There are two types of muscles in

the system and they are the involuntary muscles, and the voluntary muscles. The muscle in

which we are allow to control by ourselves are called the voluntary muscles and the ones we

can control are the involuntary muscles. The heart, or the cardiac muscle, is an example of

involuntary muscle.
The cardiac muscles are the muscle of the heart itself. The cardiac muscle is the tissue that makes up the wall of the heart called the myocardium. Also like the skeletal muscles, the cardiac muscle is striated and contracts through the sliding filament method. However it is different from other types of muscles because it forms branching fibers. Unlike
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