Histology Flashcards
1
Q
What are the names of the 3 layers of the blood vessels?
A
- tunica intima
- tunica media
- tunica adventitia
2
Q
What is the tunica media composed of?
A
- smooth muscle
3
Q
What is the tunica intima composed of?
A
- squamous epithelial cells
4
Q
What is the tunica adventita composed of?
A
- supportive connective tissue
5
Q
What seperates the tunica intima and the tunica media?
A
- internal elastic membrane
6
Q
What sperates the tunica media and the tunica adventita?
A
- external elastic membrane
7
Q
What does the term elastic arteries describe?
A
- large arteries eg. aorta
- contain sheets of elastic fibres in their tunica media
- provides elastic recoil
8
Q
The arterioles have almost no tunica adventitia?
True or false?
A
- True
9
Q
What are capiliaries composed of?
A
- endothelial cells and basal lamina
10
Q
What are pericytes?
A
- connective tissue found in capillaries with contractile properties
11
Q
What are the 3 types of capiliaries?
A
- continous
- fenestrated
- discontious
12
Q
What are the 3 layers of the heart?
A
- epicardium
- myocardium
- endocardium
13
Q
What lies towards the surface of the heart the serous pericardium or fibrous?
A
- serous is innermost
14
Q
What is the purpose of intercalated disks in the myocardium?
A
- to allow the spread of electrical activity
15
Q
What lies in the pericardial cavity?
A
- lubricating fluid
