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Flashcards in Blood and Lymph Deck (18):
1

3 connective tissue categories

connective tissue proper (loose and dense). fluid connective tissues (blood and lymph). supporting connective tissues (cartilage and bone)

2

blood: composed of? matrix?

blood cells and plasma. plasma forms fluid matrix.

3

lymph: composed of? fluid?

lymphocytes and lymph fluid. lymph fluid is a dilute solution of proteins and excess interstitial fluid

4

blood: 3 purposes?

distributes nutrients, oxygen and hormones to body cells. carries metabolic wastes away fro cells and to kidneys for excretion. transports specialized cells that provide protection against infection and disease

5

blood: volume? pH? temperature?

5-6L in average male. 4-5 average female. 7.35 - 7.45. 38C

6

formed elements in blood: 3 parts?

red blood cells (99%). WBCs. platelets.

7

5 WBCs and what they do

neutrophils = destroy bacteria. eosinophils = anti inflammatory and allergic response. basophils = inflammatory response. monocytes = macrophages. lymphocytes = immune response

8

RBCs: shape? why?

biconcave disc shaped cells: provides strength and flexibility. increases surface area so increases diffusion b/w inside and outside of cell. can stack as rouleaux

9

RBCs: intracellular structures? why?

are ejected from cell during development: not needed for main purpose of gas transport, ensures the cell doesn't consume the O2 it's carrying, but also means no repair mechanism for cell

10

RBC: cytoplasm components

water = 66%. proteins = 33%, mostly hemoglobin

11

leukocytes: two main types? where are they found?

granular and agranular. small fraction in circulating blood, most in peripheral tissues

12

leukopenia? leukocytosis?

low WBC. high WBC.

13

WBC lifespan

a few days

14

types of endothelial cell arrangements

continuous: arterial. fenestrated = venous. discontinuous = lymphatic

15

which leukocytes are granular vs agranula

granulocytes: neutrophils, eosinophils, basophils. agranulocytes: monocytes and lymphocytes

16

neutrophils: mobility? function? lifespan?

very mobile, usually first to arrive at site. active phagocytes. short life span ~12 hours

17

eosinophils: function?

phagocytic. numbers increase during allergic/infection. release enzymes that reduce inflammation, control spread to adjacent tissues

18

basophils: function?

rare, leave capillary and enter interstitial fluid and release histamine and heparin to dilate blood vessels and prevent clotting = increase permeability = increase inflammation response