cns 2

Our nervous system evolved from a simple string of nerve cells that could only bring about the simplest reflex movements that why we easily move some part of our body.

muscular system

muscular have a three type of muscle
1.The cardiac muscles is the muscle of the brain itself. The cardiac muscle is the tissue that makes up the wall of the heart called the mydocardium.
2.The skeletal muscles is composed of long muscle fibers. Each of these muscles fiber is a cell which contains several nuclei.
3.The smooth muscles are controlled by the nervous system and hormones.

skeletal system

i know in skeletal system is vital organs are protected by the skeletal system.
And the brain is protected by the surrounding skull to the heart and lungs encased to the sternum and rib cage

i know in skeletal system is vital organs are protected by the skeletal system.
And the brain is protected by the surrounding skull to the heart and lungs encased to the sternum and rib cage

tissue

- tissue is a collection of similar cells that are together to perform a function

they are four main types of tissue
1.epithelial tissue -covers many part of body. Forming a sheet are usually has no blood vessels
2.connective tissue - most common provide structure and support
3.muscle - provides a mean by and in body
4.nervous - messenger

endocytosis

- as we all know endocytosis is utilized by the cells for the in take of liquid and food

cell membrane

- cell membrane is a boundary that possesses a definite shape and actually holds the cell content together
- as we all know cell membrane is responsible for allowing materials in and out of the cell.

cell cycle

- total life of a eukaryotic cell can be divided into two major phases

1.interphase - normal function with stockpiling and preparing for division and comparing DNA and make a new organelles

2.mitotic phase - devoted to actual cell division

3. cytokinesis - the division of cytoplasm