Circulatory Flashcards Preview

Micro Anatomy > Circulatory > Flashcards

Flashcards in Circulatory Deck (18):
1

Responsible for maintaining colloidal osmotic pressure

Plasma

2

90% water, 8% protein, 1% salts, 0.5% lipids, 0.1% glucose

Plasma

3

Contain hemoglobin, passive circulation; immotile

Rbc/ erythrocytes

4

Facilitate oxygen delivery to the tissue

Hemoglobin

5

Fraction of blood occupied by rbc

Hematocrit

6

Cells that coat damaged blood vessel walls; plug small defects on blood vessels and active blood clotting cascade

Platelets/ thrombocytes

7

Fcns of the blood

-Transport oxygen and carbon dioxide throughout the body.
-defense of the body against infections and other foreign materials
•all wbc participate in defense

8

Process of production of mature blood cells from precursors

Hematopoiesis

9

Very rare, maintains own population, proliferation and differentiation

Formation of blood cells ( The stem cells)

10

Arterioles breakup into small blood vessels

Capillaries

11

Consists of parasites or adventitial cells

Tunica media

12

Formed by thin layer of collagen fiber

Tunica adventitia

13

Somatic, common type of capillary, endothelial cells forms a continuous lining of the capillary

Continuous capillary

14

Visceral, presence of tiny pores in the endothelial cells, greater permeability. Found in endocrine glands hahaha

Fenestrated capillary

15

Found in liver and hematopoietic organs like red bone marrow and spleen. Thin walled tortuous blood vessels having irregular lumen. Phagocytic cells are found.

Sinusoidal capillary

16

Fcns of capillary endothelium

Permeability
Metabolic
Non thrombogenic fcn, releases prostacyclin to prevent platelet aggregation

17

Thin with a large collapsed lumen. Receive blood from capillaries. Larger diameter than arterioles

Venules

18

Walls of venules

Tunica intima -endothelium

Tunica media -1 or 2 layers of smooth muscle fibers

Tunica adventitia -thick and composed of collagen fibers