Fat Soluable Vitamins: Vitamin A

Question 1

who discovered vitamin A?

Answer 1

Professor McCullen

Question 2

how is retinol used by the body?

Answer 2

stored in the liver

enough to last 6 months

Question 3

what is the function of retinal?

Answer 3

normal night vission in low light

Question 4

what is the fx of retinoic acid?

Answer 4

determines the life span of epithelial cells

Question 5

what is the function of caratinoids?

Answer 5

precursor for retinal

aka provitamin A

Question 6

what effect does retinoids have on the body?

Answer 6

artificial/synthetic

has atertogenic affect

Question 7

what type of specialized cell does retinoic acid perform?

Answer 7

help epithelial cells secrete mucous

Question 8

what is dry eyes known as?

Answer 8

xerothalmia

Question 9

what is the accumilation of sloughed epitheleial cells of conjunctivia of the cornea?

Answer 9

xerosis

Question 10

what are plaques on the cornea?

Answer 10

Bitots spots

Question 11

what is softneing of the cornea?

Answer 11

keratomalacia

Question 12

what can squamous metaplasia lead to?

Answer 12

follicular and papullar dermatosis

pullmonary infection

Question 13

what is nidus?

Answer 13

formation of stones in the urinary tract

Question 14

how may retinoic help children?

Answer 14

enhance their immune system to infections

30% decrease in mortality rate to measles, pneumonia, aand infection

Question 15

what are signs of acute hypervitaminosis A?

Answer 15

intracranial pressure

headache

nausea

Question 16

what are some of the signs of hypervitaminous A?

Answer 16

weight loss
nausea
vommiting
bone and joint pain

Question 17

what is hepatomegaly?

Answer 17

liver is storing excess retinol resulting in mechanical pressure

Question 18

hyperostosis is known as?

Answer 18

aka dish aka foresters

Question 19

what is DISH?

Answer 19

ossification of the ALL and rarley the PLL