Cell Types

• CONDUCTIVE CELLS

  - Nerve cells and muscle cell

  - Have the ability to conduct an electric impulse from one region to other distant region in the body
• CARTILAGE CELLS

  - Freely bendable

  - Present in ear bone, in between large bones to help them bend and move freely like n between two ribs, spinal bones and joints.
• NERVE CELLS

  - Very long and have many branching at either ends

  - They never multiply in one’s life time

  - Human brain cells and are found in plenty In brain and the spinal cord
• EPITHELIAL CELLS

  - Very simple cells which form covering of other cells.

  - Form covering layers of all organs and hence are pre-set in skin, scalp, respiratory tract, in buccal cavity surface

  - Barriers for pathogens, fluid loss and mechanical injuries
• MUSCLE CELLS

  - Mostly long, large and have ability to contract and relax providing movements.
• SKELETAL MUSCLES –attached to long bones and assist in their movement
• CARDIAC MUSCLE –present only in heart muscle and are responsible for heart beats.
• SMOOTH MUSCLE –are flexibly yet, can contract and relax and are present in stomach, intestine, blood vessel walls helping in movement of food through the gut
• ADIPOSE CELLS

  - Fats cells and are storage by nature to store fat.

  - Seen in the sole palms and bums

  - Reduce friction to the body
• BLOOD CELLS

  - Includes RBC, WBC and thrombocytes

  - Always motile and never stay in one place.

  - Have limited life span and they never multiply to form new cells.
• STORAGE CELLS

  - Secretory cells

  - Form glands like pancreas, salivary glands

  - Help in production of enzymes and hormones
• BONE CELLS

  - The toughest body cell as they bound together by calcium and phosphate.

  - Give strength, support and framework to the body by enclosing organs in skeletal system
• Supportive Cell - helps in production of enzymes and hormones
• Stem Cell -basic cell or parent cell
• Rods and Cones -present in eyes
• Ciliated Cell -lining of respiratory tract and esophagus