Blood Vessels

In the arteries is there a THICK or THIN layer of COLLAGEN FIBRES?

Thick!
Does the artery have muscles and elastic tissue?

YES, a thick layer of muscle and many elastic tissues for SMOOTH BLOOD FLOW
Does that Artery have an inner lining of squamous epithelium?

Yup
Does the artery contain any valves? and why?

No, because the blood is under CONSTANT HIGH PRESSURE so tends not to flow backwards.
Which arteries have valves?

The ones leaving the heart
Is blood in the arteries under high or low pressure?

HiGh
Is the lumen of the artery wide or narrow?

narrow
There is a thicker layer of collagen in the VEINS than in the arteries.
True or False

True
How thick is the layer of muscle in the veins? and how much elastic fibres?

There is a THIN layer of muscle and few elastic fibres.
Do the veins have valves?

yesiree
High or low pressure within the vein?

Low Pressure
How big is the lumen of the veins in diameter ?

Large and irregular
Do the capillaries contain collagen fibres?

NO
Do the Capillaries have muscles and elastic tissue?

NO
Do the Capillaries have any valves?

NO
What is pressure like within the capillaries?

Low
How big is the lumen within a capillary?

MICROSCOPIC - allows a few blood cells at a time

Author

ayeshakhan16

57777

Card Set

Blood Vessels

Description

The features of arteries, veins and capillaries.

Updated

2011-01-02T21:23:52Z

Show Answers