How is the cell organized?

The main parts of the cell are the nucleus, cytoplasm, ribosome, cell membrane, and mitochondria.

The nucleus is responsible for regulating the cells activities and holding the DNA of the cell. DNA replication happens in the nucleus.

The cytoplasm is responsible for holding all of the organelles in place and allowing materials to be transferred throughout the cell.

The ribosome makes amino acids from the translated DNA called mRNA. These amino acids are combined together to create proteins to build structures within the cell and to form new structures for the body.

The cell membrane is responsible for making sure that only materials that are good for the cell are allowed into the cell and those materials that are not good for the cell stay out. The cell membrane also passes other materials along to other cells.

Cell Membrane Mitochondria

The mitochondria is responsible for creating energy from glucose in the cell. This powers the rest of the cells activities.

The different parts of the cell work similarly to organs within the body. Each organelle works together to allow for the cell to function and survive. Getting nutrients, removing waste, transferring materials, and creating structures.

Muscle cells connect together to create a muscle tissue. These tissues are combined together to create the muscle. These cells and tissues interact with each other to create movement inside and outside of the body.

There are three types of muscle cells: cardiac muscle, skeletal muscle, and smooth muscle.

Cardiac muscle is part of the heart and is responsible for contracting together in order to pump blood in and out of the cell. This pushes nutrients and oxygen to the other organs in the body.

Skeletal muscles (sometimes called striated muscles) are attached to bones and are responsible for pulling on bones in order to move the body. Ex. bicep

Smooth muscles are used in involuntary muscle movement such as digestion. Ex. stomach

The muscular system is organized into different muscle groups: Head and Neck, Trunk, upper extremity, and lower extremity.

Head, Neck, and Trunk:

Head and Neck muscles are responsible for chewing of food and the movement of food down into the stomach.