Unit 2 - Peripheral Vascular and Lymphatic System Flashcards
In what area of the body does the blood turn from oxygenated to deoxygenated?
In the capillaries
What is the order of blood flow?
Heart –> Aorta –> Arteries –> Arterioles
Capillaries
Venules –> Veins –> Vena Cava –> Heart
What are two factors that affect blood flow?
- Pressure
- BP Hight to low pressure
- Venous return - Vascular Resistance
- Friction, between blood and vessel walls
What has a high muscular-elastic layer that has high compliance to stretch and contract with systole and diastole to generate pulse?
Arteries
True or False
Arteries typically run deeper than veins.
True
True or False
Atrial blood loss is not as detrimental as a venous blood loss.
False.
Atrial blood loss with pulse is much more detrimental to ones health.
What are the main pulse sites that are located on the upper portion of the body? (Waist up)
Temporal Carotid Brachial Ulnar Radial
What are the pulse sites that are found from the waist down?
Femoral
Popliteal
Posterior tibial
Dorsalis pedis
How much blood can the capillaries filter a day?
Up to 20L/ day
True or false
Capillaries are large blood vessels
False
Capillaries are the smallest blood vessels
Explain how the capillaries are exchange vessels?
3 ways
Simple diffusion - High to low concentration
Transcytosis - vesicle around substance like insulin
Bulk flow 85% of blood (excess 15% filtered to lymphatic system)
What area of blood flow exchange nutrients, remove waste and excess fluids?
Capillaries
True or false
There are more arteries then veins
False
Veins are far more numerous than arteries
There are two types of veins, what are they called?
Deep and Superficial
What is a superficial vein?
Superficial vein is a vein that is close to the surface of the body.
What veins are paired with arteries?
a) superficial
b) deep
B
Superficial veins are not paired with an artery, unlike the deep veins, which typically have an artery with the same name close by.
What are the major deep veins located in the head and arms?
Brachiocephalic
Internal Jugular
Brachial
Radial + Ulnar
What are the major deep veins located in the legs?
Iliac
Femoral
Popliteal
Tibial veins
Is the great/small saphenous veins considered deep or superficial?
Superficial
What vein is used for long term IV use and for grafts?
Great/Small Saphenous vein
What is known for a back up to the venous system?
Lymph System
What does the lymph produce and carry thorough the body?
It produced and carries white blood cells throughout the body (15% of the fluid)
What are the two lymphatic ducts?
Thoracic duct
Right Lymphatic duct
About 80% of the lymph system is returned into which duct?
Thoracic duct
What duct receive lymph from the right arm and right side of the head?
Right lymphatic duct
Where can you palpate nodes in the body?
Cervical
Axillary
Epitrochlear
Inguinal
What organs are essential to our immunity?
Spleen
Tonsils
Thymus Gland (Until puberty)
*Note - Not an organ, but bone marrow also contributes
What are 3 main functions of the lymphatics system?
- To drain excess interstitial fluid
- Assist in venous system - Act in immune response
- Lymph nodes filter micro-organisms
- Lymphocytes (WBC) - Absorb fat from the gut
- Dietary lipids and fat-soluble vitamins
What is Claudication?
A condition in which cramping pain in the leg is induced by exercise, typically caused by obstruction of the arteries.