Description: Cardiac tissue is a contractile, striated muscle tissue
found in the heart. Contractions are involuntary and caused by nerve
fibers and an internal electrical conduction system. It is made of
cardiomyocytes. Also known as the heart muscle.
Description: Smooth muscle is a contractile tissue found in
internal organs such as the stomach, bladder, intestines, blood
vessels, and uterus. It produces force and causes movement through the
organs. Their contraction is involuntary.
Description: Skeletal muscle is a striated contractile tissue
responsible for mobility and locomotion. The tissue is attached to
bone and most contractions are voluntary.
Description: Epithelium is made from layers of epithelial cells that
cover the surfaces of the organs to protect, absorb water and
nutrients, and secrete chemicals and other factors depending on the
function of the organ. Most glands are also made of this tissue.
Description: Connective tissue holds parts of the organism
together. It consists of cells separated by an extracellular matrix.
Bone and blood are considered to be this kind of tissue.
Description: Nervous tissue is responsible for communication
between parts of the organism. It is composed of neurons and glia. The
types of nervous tissue include brain, spinal cord, and peripheral
nerves.