Tissues

Question 1

Tissues

Answer 1

groups of cells that have similar functions, that work together to achieve a particular task. the four types are epithelial, muscular, nervous and connective.

Question 2

Epithelial Tissue

Answer 2

a covering or lining tissue; lines the skin, the insides and outsides of organs like the kidneys, the alimentary canal, the lungs and the liver. the cells are very closely joined together and can be thin and flat or fat and cube-shaped.

Question 3

Connective Tissue

Answer 3

a supportive and structural tissue; makes up bones, cartilage, tendons, ligaments, fat storage tissue and blood. the cells are spaced far apart, separated by large amounts of non-cellular matrix.

Question 4

Muscular Tissue

Answer 4

a contractive and movement-inducing tissue; the three types are skeletal, smooth and cardiac. the cells are long and thin, and are called muscle fibres.

Question 5

Cardiac Muscular Tissue

Answer 5

makes up most of the heart. striated and is involuntarily controlled; it causes heart contractions by means of sinoatrial node impulses. appears as branches, with intercalated discs visible.

Question 6

Smooth Muscular Tissue

Answer 6

found in the stomach and intestinal linings, in blood vessels, the iris of the eye and the uterus. not striated and is involuntarily controlled. appears as tapered, single nucleated lines.

Question 7

Skeletal Muscular Tissue

Answer 7

attached to bones. striated and is voluntarily controlled. cells are mostly multinucleated. appears as regular, parallel bundles.

Question 8

Nervous Tissue

Answer 8

a message-carrier tissue; found in the spinal cord, brain and nerves. the cells are called neurons and have long projections called ‘axons’ on which electrical impulses are carried.