Practical: Blood vessels I and II Flashcards
what organ is this?
aorta
what is the arrow seperating?
. The double-headed arrow marks the boundary between the tunica media and the tunica adventitia.
what is this a high power view of?
tunica media
what are the arrows pointing to?
A high power view of the tunica media. The arrow shows a layer of smooth muscle with nuclei cut in cross section.
what is this organ? what is used to stain this?
aorta
picro-orcein is used to stain the elastic fibers
what is this? what causes this?
an atherosclerotic plaque (arrow) in the intima. The elastic fibers are also unevenly distributed. Both features are age-related changes in the aorta wall.
what are these gaps in the media caused by?
gaps in the media that were filled with lipid or ground substance in life, another age-related change.
what is this slide of? what are the arrows pointing to?
The tunica media.
The elastic lamellae (arrows) are irregularly spaced and frayed (age-related change).
what organ is this?
IVC (know its a vein because its floppy)
what is this?
shows vasa vasorum (arrow) in the adventitia.
what organ is the arow pointing to?
a large vein (the renal vein).
the large vein
what is in the brackets?
longitudinal bundles of smooth muscle
what is this?
how do you know?
a large vein
- The intima is at the top.
- The media below the intima has only about 3 layers of smooth muscle.
- The adventitia contains numerous longitudinal bundles of smooth muscle.
- Bright pink collagen fibers are also seen.
what is indicated by the arrow?
the lumen of a coronary artery
what is this ?
plaque in the coronary artery
Crooanry artery. . The double-headed arrow marks the approximate limits of the ____.
media
muscular artery
see a distinct IEL of limit of the tunica media
in larger mscular arteries you would have eel
e.g. coronary a.
suprarenal a.
small muscular artery. The arrow is pointing to ____.
prominent IEL
muscular a.
an IEL and EEL are clearly visible
What type of vessel is this?
vein
* large lumen and relative thin wall
4-2 layers of smooth m.(darker pink)
irregular in shape
media will just be connective titus efibers
what is the thin arrow on top left
capillary
What is the big arrow?
venule
either no sm or single layer of sm
Mixed or elastic artery?
Elastic since tunica media is much larger than intima
Mixed artery or elastic?
Mixed. More obvious internal elastic lamina
Mixed Musculo-Elastic artery
Elastic artery (aorta)
(bottom arrow)
____ is a network of small blood vessels that supply the walls of large blood vessels
vasa vasorum
what layer of the heart is this?
epicardium
contains nerves, blood vessels, adipose tissue
what layer of the heart is this?
endocardium
the epithelium of the endocardium is ___epithelium
simple squamous
Muscular artery you can clearly see the ____
internal elastic lamina
____ artery
muscular artery
you an see the IEL clearly
this is a ____
arteriole
2-5 layers of smooth m.
tunica media layer contains concentric rings of smooth muscle to do this
this is a ____
arteriole
round nuceli in the middle
media is the thickest, most conspicuous layer, in which nuclei of individual smooth muscle fibers
this is a ____
venule
single layer of SM
venule
single layer of smooth m.
bracket
endocardium
top box
