An organ is a group of tissues working together to perform a specific task
A tissue is made up of cells that are similar in structure and function
The human body has many organs which work together as part of an organ system
A tissue is a group of cells that work together to do the same job
The human body has four main types of tissue; epithelial, connective, muscle and nervous tissue.
Connective tissue binds other tissues together and provides support.
Organs systems have different functions such as the circulatory system transports blood around the body or the respiratory system brings oxygen into the lungs
Cells are the basic building blocks of life; Cells that have similar functions form a tissue; two or more types of tissue working together form an organ; organs work together to form an organ system; two or moreorgansystems make up an organism.
The body is organised into
Cells
Tissues
Organs
Organs systems
The systems of the human body:
Circulatory System
Nervous System
Respiratory System
Digestive System
Skeletal System
Integumentary System
Muscular System
Endocrine System
Cardiovascular System
Lymphatic System
Urinary System
Reproductive System
The skeletal system maintains the structure of the body and its organs, providing protection.
The circulatory system, also known as the cardiovascular system, circulates the blood around the body, delivering oxygen and nutrients to organs and cells and carrying their waste products away, as well as keeping the body’s temperature in a safe range.
The digestive system is a system to absorb nutrients and remove waste, functioning via the gastrointestinal tract, including the mouth, oesophagus, stomach, and intestine.
The nervous system collects and processes information from the senses, then tells the muscles to contract to cause physical actions.
The respiratory system brings air into and out of the lungs to absorb oxygen and remove carbon dioxide.