Tissues

Question 1

what are the the five types of epithelial tissues?

Answer 1

• squamous
• cuboidal
• columnar
• ciliated columnar
• glandular

Question 2

what is epithelial tissue?

Answer 2

• lining tissues
• cells closely packed on a basement membrane
• no blood vessels, some have nerve endings

Question 3

squamous epithelium

Answer 3

• flattened cells on a basement membrane
• lining tissue covering organs, cavities and tubes
• thin layer of cells for exchange
• found in the alveoli, blood vessels and lining of the renal capsule

Question 4

cuboidal epithelium

Answer 4

• cells are cubes
• one cell thick
• for secretion and reabsorption
• kidney tubules and glandular ducts

Question 5

columnar epithelium

Answer 5

• elongated, column-shaped cells
• some with microvilli to increase surface area for absorption
• small intestine

Question 6

ciliated columnar epithelium

Answer 6

• elongated, column-shaped cells with cilia
• trachea, bronchi and oviducts

Question 7

glandular epithelium

Answer 7

• secretory epithelial cells in gland shapes
• salivary glands, pancreas, gastric glands

Question 8

what is muscular tissue?

Answer 8

• able to contract
• cells contain protein fibres of actin and myosin which slide to contract

Question 9

what are the three types of muscular tissue?

Answer 9

• skeletal (striated)
• smooth
• cardiac

Question 10

skeletal muscle

Answer 10

• voluntary contraction
• cells join to form fibres
• striations caused by overlapping protein molecules
• supports tissues, skeletal movement (generates locomotion) and is attached to bones by tendons

Question 11

smooth muscle

Answer 11

• rhythmic involuntary contractions weaker than skeletal
• unstriated individual spindle shaped cells
• walls of hollow organs/digestive tract/respiratory tracts/vessels/bladder and skin

Question 12

cardiac muscle

Answer 12

• involuntary rhythmic contraction
• striated but not in long fibres
• branched, attached by thick plasma membranes called “intercalated discs”

Question 13

connective tissue

Answer 13

• connects, supports and separates tissues and organs
• cells and collagen fibres in an extracellular fluid called a matrix
• adipocytes (store fat) and immune system cells between fibres

Question 14

nervous tissues

Answer 14

• neurons and glial cells
• generates and transmits electrical impulses, sensory input controls muscles and glands
• homeostasis