Animal Circulation

Question 1

Open circulatory systems use ______ in its vessels

Answer 1

Hymolymph

Question 2

Closed circulatory systems use ______ in its vessels

Answer 2

Blood

Question 3

Arteries > Veins.

Answer 3

Arteries > Arterioles > Capillaries > venules > Veins

Question 4

The layers of circulatory vessel walls

Answer 4

Endothelium, smooth muscle, connective tissue

Question 5

Arteries and vein flow direction

Answer 5

Arteries - Away from the heart
Veins - To the heart

Question 6

Double circulatory systems: Amphibians vs Reptiles vs Mammals

Answer 6

Amphibians- 2 Atriums, 1 Ventricle.

Reptiles- 2 A, 1 V, incomplete septum, extra artery of mixed blood to systemic capillaries

Mammals: 2 A, 2 V, no blood mixing

Question 7

Blood is made up of

Answer 7

55% Plasma
45% Cellular elements

Question 8

Plasma is composed of

Answer 8

Water
Ions (blood electrolytes)
Plasma protiens
Substances transported

Question 9

Cellular elements in blood include

Answer 9

Leukocytes (White blood cells)
Platelets (Cell fragments, clotting)
Erythrocytes (Red blood cells)

Question 10

Lymphatic system functions

Answer 10

Return leaked fluids from capillaries to circulatory system

Regulate fluid balance, Against against infection, Carries some waste, Carries absorbed lipids