Chapter 21 Blood Vessels And Circulation Flashcards
Aorta, BC, carotids, subclavians more elastic than muscle and exhibit elastic rebound
Elastic Arteries
Smooth muscle constrict or dilate to alter blood flow
All named in lab except elastic Arteries
Muscular arteries
Have the greatest control of blood flow to a tissue
Arterioles
Smallest and most numerous
Wall = simple squamous ET
Only vessels to allow substances to enter exit blood stream
Capillaries
Small veins
Venuoles
Brachial
Axillary
Cephalic
Basilic
Femoral
Hepatic
Renal
GonadAl
Subclavain
Medium veins
Superior vena cavae
Inferior vena cavae
Jugular veins
Renal veins
Hepatic veins
Large veins
Carry blood away from the heart
Return blood to the heart
Arteries
Veins
Openings in the walls to allow large molecules to permeate
Found in bone marrow, brain, kidneys, liver
Fenestrated capillaries
Is a pushing pressure that forces blood thru the system
Hydrostatic pressure
Pushing pressure caused by the albumins
Osmotic pressure
Any force that opposes movement
Resistance
Type A blood
Will have A surface antigens
With Anti B antibodies
Type B
Will have B surface antigens
With Anti A antibodies
Type AB
Will have both A or B surface antigens
Will have neither Anti A or B antibodies
Type O
Neither A and B antigens
But will have both anti A and B antibodies
Type A blood can only receive
Type B blood can only receive
Type AB blood can only receive
Type O blood can only receive
- Type A or O
- Type B or O
- Type A, B, AB, O considered universal recipient
- Type O considered universal donor
Hematocrit number
45
Life span of an RBC
4 months 120 days
Located in the arterial arterial septum and it increases Blood flow to the left and right atrium
Foremen ovalle
Papillary muscle function is to prevent ?
AV valves from reversing
Phagocytose antibody coated bacteria and parasites. Their granular contents are released to respond to the parasites and allergens. Acidic dye is red.
Eosinophils
How many heart beats in a day
100,000
Semilunar valves prevent back flow to the ?
Ventricles
SA node
70-80 bpm
They are shaped like a Bi-conclave disk to increase the surface area for the transport of dissolved gases
RBCs
The first heart sound the Lubb
AV closes during ventricular systole
The second heart sound the dupp
SL valve is closed during ventricular diastole
Visceral pericardium is the same as
Epicardium
Normal heart rate is called the ?
Resting heart rate
Dissolves clots & anticoagulant
Plasmin
Difference between plasma and interstitial fluid ?
Increase of plasma proteins
Causes of stroke volume
Increase venous return and decrease
Calcium channels open
Increase sympathetic simulation
Opens K+ channels
Decrease cardiac output
Decrease depolarization of SA node
ACH acetylcholine
Is the point along a capillary where TP = ROF
Dynamic center
Nutrients beneficial ions exits blood stream to feed cells driven by BHP
Tissue perfusion
Is the removal of wastes, carbon dioxide, from tissues. It is driven by BCOP it occurs when BHP is < BCOP
Recall of fluids
We only recall about 85% of the perfused fluid back into the same capillary.
The remaining 15% is recalled into the lymph system
TP > ROF
If BP is ⬇️ the dynamic center shifts towards the _______.
TP ⬇️, ROF ⬆️ ischemia tissues starve
Low BP
Arterial end
If BP is ⬆️ the dynamic center shifts towards _______.
Venous end
High BP