Upgrade to remove ads
Terms in this set (22)
What do patients with von willebrand disease , sofrer ?
is an inherited disorder that results in impaired( weakened/damaged) adhesion of platelets having prolonged coagulation times and excessive bleeding at an injury site
How is the tunica media of elastic arteries ?
Consists of many fenestrated( with wholes/ perforated) lamelae of elastin - fenestrated membrane intercalated with some smooth muscle cells
Which one of the statements is true regarding the tunica media :
A)The number of lamellae of elastin increased with age ;
B)The tunica media of elastic fibers is composed off subendothelial connective tissue cells intercalated with smooth muscle cells
C)It has a blue-ish coloration
There are approximately _____ lamellar of fenestrated membranes in newborns and ______ in adults —( circulatory system -arteries-tunica media)
Smooth muscle are __________ ( more/less) abundant in elastic arteries than in muscular arteries
How is composed the extracellular matrix of the tunica media of elastic arteries ? They are secreated by __________ cells
Is composed of chondroitin sulfate, collagen and reticular and elastic fibers secreated by smooth muscle cells
The tunica adventitia of elastic fibers is _____(thin/thick) and composed of ____________ tissue housing ______
Loose fibroelastic connective tissue
What does the fenetrations of the elastic laminae permit ?
It permits some diffusion of oxygen and nutrients to the cells in the tunica media from the blood flowing through the lumen although most of the nourishment is done by vasa vasorum
Give examples of muscular arteries
Most of the arteries originating from the aorta with the exception of those originating from the aorta arch( common carotid, subclavian) and those originating from the abdominal aorta ( common iliac artery example : ulnar artery , renal artery and brachial artery)
How can arteries be considered muscular arteries ?
Relatively thick tunica media and an abundance of smooth muscle cell layers
The túnica íntima of muscular arteries ir relatively more _______(thin/thick) than the one of elastic fibers
In what type of artery can we find the subendothelial connective tissue layer with some smooth muscle cells
In which type of artery is the internal elastic lamina prominent ?
In which artery can the internal lamina duplicate ?
And what's it called ?
Bifid internal elastic lamina
The orientation of most of the smooth muscle cells is __________
Smallmuscular arteries have ____ to _____ layers of smooth muscle cells whereas larger muscular layers may have as many as _______ layers
Aneurysm is a sac like dilation of ___________ or less often ________ that results from the weakness of the vessel wall and its also caused by the increase of _____
Syndromes that can cause an aneurysm are as follow:
Atheroscleoris, Marfan syndrome , syphilis and ehlers-danlos syndrome where frequently elastic fibers are displaced by collagen fibers
Tunica adventia of muscle arteries is composed of_______, ________( 60-100 nm in diameter) and ground substance composed off: _____________ and Heparan sulfate
Elastic fibers, collagen fibers , deparan sulfate
What structure produces the extracellular matrix of the tunica adventia ?
What can we find located at the outer regions of the tunica adventia?
Vasomotor nerve( contraction)and unmyelinated nerve endings .
Where are the neurotransmissors of the vasomotor nerve of muscular arteries diffused ?
They diffuse at the external elastic lamina (fenestrated membrane) through the smooth muscle cells of the tunica media
What happen when the neurotransmissors released by the vasomotor are released and reach the tunica media ?
It depolarizers the smooth muscle cells causing the process of contraction
OTHER SETS BY THIS CREATOR
Function of nuclear pore complex
Nuclear pore complex
Outer nuclear membrane
OTHER QUIZLET SETS
U.S Amendments for AP Gov
Geo Short Questions
NEUR 2026 Chapter 9
Triangles of Neck Part 1 Posterior Triangles- Marr…