Cellular anatomy of blood vessels

Question 1

what 3 layers do blood vessels consist of ?

Answer 1

1. Tunica intima (inner layer)
   Endothelia line the blood vessel
2. Tunica media (middle layer)
   * Vascular smooth muscle cells,
   * collagen and elastin fibres
   * Often the thickest layer
3. Tunica adventita (outer layer)
   Outer protective layer
   Fibroblasts

Question 2

Elastic arteries include:

Answer 2

• Aorta
• Pulmonary artery
• Subclavian artery
• Carotid artery

Question 3

Muscular arteries include:

Answer 3

Coronary arteries
Femoral arteries

Question 3

Muscular arteries include:

Answer 3

Coronary arteries
Femoral arteries

Question 4

what are the 3 types of capillaries ?

Answer 4

1. Continuos
2. Fenestarted
3. Sinusoid

Question 5

features of a continuos capillary

Answer 5

1. Most capillaries of the body
2. Very restricted permeability
3. Permit exchange of water, small solutes and lipid-soluble materials between the blood and interstitial fluid

Question 6

features of a fenestrated capillary

Answer 6

• found in kidney, intestine
• Facilitate rapid exchange of water and solutes between blood and interstitial fluid

Question 7

features of a sinusoid capillary

Answer 7

• can be found in liver, bone marrow
• Free exchange of water, solutes and large plasma proteins

Question 8

which class of blood vessel sometimes contains windows ?

Answer 8

Capillaries

Question 8

which class of blood vessel sometimes contains windows ?

Answer 8

Capillaries

Question 9

what is Vasculogenesis

Answer 9

• Refers to the formation of entirely new blood vessels
• This occurs only during embryonic development

Question 10

what is angiogenesis ?

Answer 10

• Refers to the sprouting of new branches from pre-existing blood vessels.
• This process occurs throughout life
  e.g. new capillaries will develop in your muscles if you train

Question 10

what is angiogenesis ?

Answer 10

• Refers to the sprouting of new branches from pre-existing blood vessels.
• This process occurs throughout life
  e.g. new capillaries will develop in your muscles if you train

Question 10

what is angiogenesis ?

Answer 10

• Refers to the sprouting of new branches from pre-existing blood vessels.
• This process occurs throughout life
  e.g. new capillaries will develop in your muscles if you train

Question 10

what is angiogenesis ?

Answer 10

• Refers to the sprouting of new branches from pre-existing blood vessels.
• This process occurs throughout life
  e.g. new capillaries will develop in your muscles if you train

Question 11

what is angiogenesis ?

Answer 11

• Refers to the sprouting of new branches from pre-existing blood vessels.
• This process occurs throughout life
  e.g. new capillaries will develop in your muscles if you train

Question 11

what is angiogenesis ?

Answer 11

• Refers to the sprouting of new branches from pre-existing blood vessels.
• This process occurs throughout life
  e.g. new capillaries will develop in your muscles if you train

Question 12

what is angiogenesis ?

Answer 12

• Refers to the sprouting of new branches from pre-existing blood vessels.
• This process occurs throughout life
  e.g. new capillaries will develop in your muscles if you train

Question 13

what is Atherosclerosis ?

Answer 13

• Buildup of fatty deposits within the walls of arteries
• These can trigger clot formation and can become dislodged, blocking arteries

Question 14

Depending on the artery affected, atherosclerosis may cause:

Answer 14

1. Heart attack (blockage of coronary artery)
2. Stroke (blockage of cerebral artery)
3. Kidney disease