Veins anatomy

Question 1

what is the artery pathway from the heart to the foot

Answer 1

acending aorta, aortic arch, decending aorta, common iliac, external iliac artey, femoral, popliteal artery, posterior tibial, plantar arch

Question 2

What are the acending veins of the foot to heart

Answer 2

planter venous, posterior tibial, popliteal, femoral, exteral iliac, common iliac, inferior vena cava

Question 3

What are the properties of tunica media

Answer 3

• layer of mostly smooth muscle
• also has variable content of collagen and elasin
• in elastic veins higher elastin content, low in muscular arterys
• thickness dependant on blood pressure
• thickest layer in healthy arterys

Question 3

what are properties of the tunica intima

Answer 3

• endothelium - simple squamous epithelia,
• sub endothelium - layer of loose FCT for protection
• internal elastic lamina - compact layer high in elastin, well developed in arterys not in veins
• thin layer

Question 3

what are the three layers of blood vessle walls

Answer 3

tunica intima
tunica media
tunica adventitia

Question 4

what are the properties of tunica advantitia

Answer 4

• loose FCT, high collagen + variable elastin
• contains vena vasorum blood vessles
• contains lyphatics and nerves
• thickest layer in veins

Question 5

what is the function of elastic arterys

Answer 5

Located near the heart – high elastin in tunica media – distributes the force from heart contractions – creates even blood pressure during systole + diastole in capillary’s

Question 6

what are the properties of veins

Answer 6

• low pressure 1 way system
• large CSA
• thinner walls than arteries
• flat irregular shape with large lumen
• capacitance vessles

Question 6

what is the function arterioles

Answer 6

smallest arterys in the body - constriction harder blood circulation leading to increased blood pressure, dialation leads to easier blood flow and decreased blood pressure

Question 7

what are venuoles

Answer 7

The smallest veins - 1st step of drainage system - venous valves ensure unidirectional flow

Question 8

What is a capacitance vessle

Answer 8

One which can increase in fluid volume

Question 9

What is the interaction between sketeal muscle and veins

Answer 9

SM compressions push blood in veins, which is pushed up, downwards movment is prevented by valves

Question 10

What condition occurs when there is strech to the veins leading to damage to the valves + effect

Answer 10

vericose veins
creates hydrostatic pressure - leads to further streching to the veins

Question 11

what is the longest vein in the leg

Answer 11

great saphenous vein
- foot -> top of thigh
- superfical