Cells and tissue types Copy

Cells and tissues

Groups of cells are classified according to their structure and function. A group of cells together performing the same function is called tissue.

Cells in a particular tissue perform specialised functions. There are four main types of tissue:

  • epithelial
  • connective
  • muscular
  • nervous

Cells can have more than one function and therefore can be classified into more than one group.

Epithelial and connective tissue


  • Simple – squamous/cuboidal/ciliated/columnar.
  • Compound – transitional/stratified.

Connective tissue

  • Areolar, adipose, fibrous, elastic, bone, lymphoid, cartilage (hyaline/elastic/fibrocartilage).
  • Membranes – (mucous/synovial/serous).


  • An organ is a group of tissues that perform a specific function(s).
  • Organs are grouped into systems.

These systems will be researched throughout this course-

  • The integumentary system- Skin, hair and nails
  • The endocrine system- hormones
  • The digestive system
  • The cardiovascular system
  • The respiratory system
  • The lymphatic system
  • The muscular system
  • The skeletal system