muscles tissues

Question 1

what is atherosclerosis

Answer 1

CHANGE IN THE LINING OF EPIITHELIUM thickening or hardening of the arteries caused by build up of plaque in the inner lining of the artery
build of fats, cholesterol and other substances

Question 2

what causes it

Answer 2

build up of plaque
accumulation of imflamitory cells
plaque made from fats (lipids) cholesterol

Question 3

what happens when there is plaque etc in the arteries

Answer 3

plaque can cause arteries to narrow which the blocks the blood flow going to vital organs
plaque can burst leading to blood clots

Question 4

what are the risk factors of atherosclerosis

Answer 4

high cholesterol
high blood pressure
smoking
obesity incl diabetes
eating saturated fats

Question 5

what are epithelium cells

Answer 5

lining tissue, covers the outer surface

Question 6

what are endothelium cells

Answer 6

lining tissue, covers the inner surfaces

Question 7

in arteries and veins

Answer 7

endothelium reduces friction and allows for smooth flow of blood
damaged endothelial cells can cause release of substances that can cause blood vessels to constrict
regulates blood flow and pressure

Question 8

in capillaries

Answer 8

single layer of endothelium
easy gas exchange of nutrients and oxygen into the tissues and the removal of waste products

Question 9

is myosin thick or thin

Answer 9

thick

Question 10

is actin thick or thin

Answer 10

thin

Question 11

what is a skeletal muscle cell wall made off

Answer 11

sarcolemma

Question 12

what are bundles of muscle fibres surrounded by

Answer 12

persmysum