Blood Vessels Flashcards
Name the THREE (3) LAYERS of BLOOD VESSELS.
- Tunica Intima
- Tunica Media
- Tunica Externa
This TUNIC forms a FRICTION REDUCING lining.
Tunica Intima
What are the TWO (2) LAYERS of the TINICA INTIMA?
- Endothelium
2. Subendothelial
This LAYER of the TUNICA INTIMA is made up of SIMPLE SQUAMOUS EPITHELIUM.
Endothelium
This layer of the TUNICA INTIMA is made up of BASEMENT MEMBRANE and LOOSE CONNECTIVE TISSUE.
Subendothelial
This TUNIC is made of SMOOTH MUSCLE and elastic tissue.
Tunica Media
The TUNICA MEDIA is CONTROLLED BY __________
Nervous System and Chemicals
This TUNIC PROTECTS, REINFORCES and ANCHORS the blood vessel.
Tunica Externa
This TUNIC is made up of loosely woven COLLAGEN FIBERS.
Tunica Externa
This NOURISHES the OUTER LAYER of LARGE VESSELS.
Vasa Vasorem
Name the THREE (3) GROUPS of ARTERIES.
- Elastic
- Muscular
- Arterioles
These type of ARTERIES are SWISS CHEESE LIKE and also known as CONDUCTING arteries.
Elastic
The AORTA and other MAJOR after are this TYPE of ARTERY.
Elastic
TRUE or FALSE: elastic arteries have thin walls.
FALSE,
Elastic arteries have THICK WALLS
These type of arteries are also known as DISTRIBUTING ARTERIES.
Muscular
These type of ARTERIES REGULATE BLOOD FLOW through CAPILLARIES.
Arterioles
These SPIDER SHAPED SMOOTH MUSCLE a strategic places help REGULATE CAPILLARY PERMEABILITY.
Pericytes
Name the THREE (3) types of CAPILLARIES.
- Continuous
- Fenestrated
- Sinusoidal
This type of CAPILLARY is the MOST COMMON, endothelial cells are joined by TIGHT JUNCTIONS that allow a LIMITED PASSAGE of FLUIDS and SOLUTES.
Continuous
This type of CAPILLARY has OVAL PORES in endothelial cells, is MORE PERMEABLE to fluids and small solutes.
Fenestrated
This type of CAPILLARY had SWISS CHEESE LIKE PORES that are PERMEABLE to LARGE MOLECULES.
Sinusoidal
TRUE or FALSE: blood cells can pass through sinusoidal capillaries.
TRUE
Name TWO (2) PLACES you would FIND CONTINUOUS CAPILLARIES.
- Skin
2. Muscle
Name TWO (2) PLACES you would FIND FENESTRATED CAPILLARIES
- Endocrine Organs
2. Glomerulus of Kidney
Name FOUR (4) PLACES you would FIND SINUSOIDAL CAPILLARIES.
- Liver
- Bone Marrow
- Spleen
- Adrenal Medulla
There are ____ miles of blood vessels in the body.
60,000 miles
This is the FLOW of BLOOD FROM the ARTERIOLE TO the VENULE through the CAPILLARY BED.
Microcirculation
Name the TWO (2) TYPES of CAPILLARY BEDS.
- Vascular Shunt
- True Capillaries
SEE CH. 19 ppt. SLIDE 9
What are the TWO (2) GROUPS of VEINS?
- Veins
2. Venules
TRUE or FALSE: veins get larger and thicker towards the heart.
TRUE
CAPILLARIES UNITE these type of VEINS.
Venules
This type of VENULE is characterized by ENDOTHELIUM with PERICYTES that are EXTREMELY POROUS so that WBCs and fluid PASS through EASILY.
Postcapillary Venule