Video Transcript
There are three major types of muscle tissue in the human body: skeletal, cardiac,
and smooth. Which type of muscle is primarily involved in the regulation of heart beats via
involuntary movements?
To answer this question, let’s look at the main roles of the various muscles that can
be found in the body. Muscles are bands or bundles of fibrous tissue that help various parts of the body to
move by contracting and relaxing. There are three main types of muscle that carry out different functions: skeletal
muscle, smooth muscle, and cardiac muscle.
Skeletal muscles are attached to our bones and can be controlled voluntarily to allow
conscious movement of certain body parts. For example, skeletal muscles enable us to move our limbs, which are our arms and our
legs. They also help us to maintain our posture.
Smooth muscle and cardiac muscle are involuntary muscles which means that we cannot
consciously control their movement. Smooth muscle is found in lots of different organ systems, such as in our stomach and
intestines, where it helps to move food through the digestive system. Smooth muscle is also found in the walls of arteries, where it contracts to help move
blood through these blood vessels continuously.
Cardiac muscle is found in the heart, where it beats in a continuous rhythm of
contraction and relaxation to keep blood pumping throughout the body. This means that we have found the correct answer to this question. The type of muscle that is primarily involved in the regulation of heart beats via
involuntary movements is cardiac muscle.
