Chapter 21 - Peripheral Circulation and Regulation Flashcards Preview

Anatomy & Physiology > Chapter 21 - Peripheral Circulation and Regulation > Flashcards

Flashcards in Chapter 21 - Peripheral Circulation and Regulation Deck (257)
Loading flashcards...
1

Arterial tissues are

vessels

2

vessels are classified as

elastic arteries
muscular arteries
arterioles

3

blood travels from the ______ to the _______

arterioles
capillaries

4

blood then transfers from the _______ to the _______

capillaries
venous system

5

the walls of the veins are less _______ and contain less _______

elastic
smooth muscle cells

6

veins are classified as

venules
small veins
large veins

7

capillaries are _______ in diameter

7-9 um

8

capillaries are _______ in lenght

1mm long

9

RBC go through capillaries how

single file

10

capillaries are lined with

simple squamous epithelial cells

11

what is the lining of the capillaries called

endothelium

12

sitting outside of the basement layer of the capillaries is the layer of loose connective tissue called

adventitia

13

capillaries are classified based on

diameter and permeability

14

how many types of capillaries

3

15

what are the types of capillaries

continuous
fenestrated
sinusoidal

16

_______ capillaries are 7-9 um in diameter and the walls have no gaps between the endothelial cells; they are less permeable to latge molecules

continuous

17

what are areas of the cell where there is no cytoplasm and the cell membrane consists of a porous diaphragm

fenestration

18

_______ capillaries have many fenestrations

fenestrated

19

_______ capillaries are the largest in diameter, have larger fenestrations, and are found in the endocrine glands for transportation of large molecules

sinusoidal

20

where are fenestrated capillaries found

intestine
ciliary process of the eye
choroids plexus of the CNS
glomuruli of kidney

21

_______ are large diameter sinusoidal capillaries, with a sparse basement membrane, large molecules and even cells can pass through here.

sinusoids

22

where are sinusoids common

liver
bone marrow

23

what are sinusoids closely associated with

macrophages of the immune system

24

_______ are even larger than the sinusoidal type and have large gaps between the endothelial cells

venous sinsus

25

venous sinus are found where

spleen

26

substances pass through the capillary wall via

diffusion

27

what is order of diffusion through capillary wall

endothelial wall
fenestrae
between enothelial cells

28

what passes through capillary walls easily

water
oxygen
co2

29

capillaries form large _______ of vessles in the body

networks

30

what types of areas are capillary networks most numerous

highly metabolic tissues of the body