Biology for Kids

Muscles are the way we live by moving. All body movements are controlled by the muscles. Like the beating of our hearts, there are some muscles that move without our thoughts, but the other muscles are controlled by our thinking and go forward or move around. Our muscles all together make up the body muscle system

There are more than 650 muscles in the human body. They are under our skin and cover our bones. Muscles often help us move together. There is no need to think about moving everyone's muscles. For example, thinking only about running, the body does the rest of the work

Muscles stretch and work. Muscles have long, thin cells gathered in a bundle. When muscle fibers receive signals from nerves, proteins and chemicals release energy, muscles contract and relax muscles. When the muscles contract, it pulls the bone to which it is connected.

Many of our muscles are paired. An example of this is the biceps and triceps in our arms. When the biceps brachii muscle contracts, the triceps brachialis relaxes, which bends our arms. When you want to extend your arms, the biceps brachii muscle relaxes and the triceps brachii muscle contracts. A pair of muscles allows us to move back and forth

Skeletal muscles - these are the muscles we use to move around. They cover our bones and move our bones. What looks like a striped muscle is striped muscle. These muscles are spontaneous as they are directly controlled by signals from the brain.

Smooth muscle - smooth muscle is a special muscle which is not connected to the bones but controls the organs of our bodies. These muscles work, we do not need to think about them

The tendon connects the muscle to the bone. Tendons help to form a link between soft and contracting muscle cells and hard bone cells

When we practice our move over and over again, so-called muscle memories are born. It allows us to better master certain activities like sports and music. While we are practicing our muscles adjust to make our movement more accurate and exactly match what our brain is asking them. Remember, exercise is perfect!

As we move, we strengthen our muscles by strengthening our muscles. Exercise helps keep your muscles strong and flexible. If you do not use muscles, the muscles may contract, contract, or weaken.

Tremor is caused by stretching of hundreds of muscles that generate heat and warm us.

A smile needs 17 muscles and a tranquil face needs 43 muscles. There are many reasons to laugh than frown!

Our longest muscle is Sartorius. It helps to bend your knees and twist your feet from waist to knees.

The smallest muscles are in our ears, called Steepedius. It is attached to the smallest bone in the body on the tibia

Science >> Children's biology organism constantly creates new cells. They make and grow new cells and replace old dead cells. The process of making new cells is called cell division. Cell division has occurred all the time. About 2 trillion cells are divided each day in a normal human body. Mitosis is used when it is desired to replicate cells into their own exact copies. Everything in the cell is duplicated. These two new cells have the same DNA, function and genetic code. The original cell is called the mother cell and the two new cells are called daughter cells. The complete process or cycle of mitosis is described in more detail below.

Cell biology (also known as cytology, from Greek, kytos, "container") is a field of biology that studies the structure and function of cells, the basic unit of life. Cell biology includes the physiological properties of cells and their environment, metabolic processes, signaling pathways, life cycles, chemical composition and interactions. Since it contains prokaryotic and eukaryotic cells, it is done at the microscopic and molecular levels. Understanding how cellular components and cells work will be the foundation of all biological sciences and also important for research in biomedical fields such as cancer and other diseases. Cell biology research is closely related to genetics, biochemistry, molecular biology, immunology and cytochemistry

Molecular biology is a biological study at the molecular level. This field overlaps with other fields of biology and chemistry, especially genetics and biochemistry. Cell biology studies cellular properties including cellular physiological properties, structure, intercellular organelle, interaction with the environment, life cycle, division and death. Molecular biology and cell biology are interrelated, as most of the properties and functions of cells can be described at the molecular level. Molecular biology and cell biology involve many fields of biology, including biotechnology, developmental biology, physiology, genetics, and microbiology.