F214 2.1 - Excretion

Question 1

Hepatocytes

Answer 1

Cuboid shaped cells that make up the liver

Question 2

Homeostasis

Answer 2

Maintaining the internal environment despite external changes

Question 3

Hepatic Portal Vein

Answer 3

Vein carrying deoxygenated blood from small intestine to liver

Question 4

Hepatic Vein

Answer 4

Vein carrying deoxygenated blood from liver to vena cava

Question 5

Hepatic Artery

Answer 5

Artery carrying oxygenated blood from the aorta to the liver

Question 6

Vena Cava

Answer 6

The body’s main vein. Returns blood to right side of the heart

Question 7

Aorta

Answer 7

The body’s main artery. Sends blood around the body from the left side of the heart

Question 8

Bile Duct

Answer 8

Carries bile from liver cells to gall bladder

Question 9

Gall bladder

Answer 9

Attached to liver: stores bile

Question 10

Bile

Answer 10

Alkaline fluid; composed of bile salts, bilirubin and biliverdin (breakdown pigments from Hb)

Question 11

Digestive/excretory functions of bile

Answer 11

Bile salts help emulsify fats in small intestine

Question 12

Liver lobule

Answer 12

Group of cells (hepatocytes) in the liver

Question 13

Inter-lobular vessel

Answer 13

Branch of hepatic artery

Question 14

Intra-lobular vessel

Answer 14

Branch of hepatic vein

Question 15

Sinusoid

Answer 15

Pool of blood in between the liver lobules

Question 16

Bile canaliculus

Answer 16

Bile channel

Question 17

Microvilli

Answer 17

Small thread like projections of the cell surface membrane; increase surface area

Question 18

Kupffer Cells

Answer 18

White blood cells (macrophages) in the sinusoids that digest old red blood cells

Question 19

Deamination

Answer 19

Removing the amine group from an amino acid to produce ammonia

Question 20

Ornithine cycle

Answer 20

Process in liver that converts ammonia to urea

Question 21

Keto acids

Answer 21

Set of reactions that are part of aerobic respiration; takes place in mitochondrial matrix