Pacemaker cells are specialized cells that cause involuntary muscles and tissues to contract or dilate. They are found in all involuntary muscle groups, including both striated and smooth tissues. Striated involuntary muscles are found in the heart, while smooth involuntary tissue can be found in ...
Pacemaker cells are specialized cells that cause involuntary muscles and tissues to contract or dilate. They are found in all involuntary muscle groups, including both striated and smooth tissues. Striated involuntary muscles are found in the heart, while smooth involuntary tissue can be found in sev...
A muscle cell is a special kind of cell that makes up an organism's muscle tissues. The muscles allow independent movement and regulate biological functions such as digestion and heartbeat. These cells are further specialized into distinct types based on their location and functions. All of them...
The process of muscle growth is not known for sure, but most theories are based on the idea that lifting breaks down the muscle, and growth results from over-compensating to protect the body from future stress. The human body breaks down and rebuilds all of the muscles every 15 to 30 da...
There are many specialized cells in the body. Cells that make up organs, muscles or other body parts and cells that help these parts carry out their functions. Different cells are needed all over the body to help all the systems and organs do their specific jobs and to help them work tog...
These advances fall into three different buckets. The first is specialized media and serum. The second, that Samantha mentioned, are some of the isolation and separation technologies and devices that are currently being used. Lastly there is characterization; thinking about ...
What makes smooth muscles to contract and relax slowly? Acetylcholineis released by autonomic nerves in the walls of a blood vessel, and it causes smooth muscle cells in the vessel wall to relax. The acetylcholine acts indirectly by inducing the nearby endothelial cells to make and release NO,...
John Jay College for Criminal Justice defines tissue as “a collection of similar cells that group together to perform a specialized function.” Human tissue is generally divided into four groups: epithelial, connective, muscle, and nerve. However, the body is a system, and although human tissue...
an electrical impulse generated in one part of the heart will spread to all the cardiac muscle cells.Thus, the whole heart will contract.Cardiac muscle cells can generate impulses without any input from the nervous system.In contrast to this, skeletal muscles don’t contract unless the nervous ...
Finally, there’s a type of specialized smooth endoplasmic reticulum called thesarcoplasmic reticulum.The sarcoplasmic reticulum is found in muscle cells and is used to store calcium ions that muscles need to function. When muscles experience sustained activity, the sarcoplasmic reticulum can release the...