venous blood

Blue in diagrams

Venous blood is blood returning to the heart through the veins, having delivered oxygen to tissues and picked up carbon dioxide.

It appears darker than arterial blood due to lower oxygen content.

In diagrams and medical contexts, veins carrying venous blood are conventionally colored blue, though the blood itself is dark red: The nurse drew venous blood from the patient's arm.

composition

deoxygenated

Without oxygen present

erythrocytes · leukocytes · serum · albumin · globulins · bilirubin · fibrinogen · hematocrit · waste products · metabolites

collection

phlebotomy

Extracting blood medically

specimen · syringe · needle · vial · coagulation · clotting · hemolysis · centrifuge · lancet · butterfly needle

circulation

vena cava

Large vessel entering heart

valves · varicose · saphenous · jugular · venule · systemic · thrombosis · phlebitis · reflux · insufficiency

appearance

dark red

Deep shade of scarlet

purplish · sanguineous · viscous · opaque

clinical

oxygen saturation

Blood's carried gas level

acidosis · alkalosis · perfusion · vital signs · IV line · central line · infusion · catheter · dialysis · sepsis

typing

A

Highest academic mark

  • BAlphabet runner-up
  • ABABO group category
  • OFifteenth alphabet character

Rh factor · antigen · transfusion · compatibility · donor · recipient · universal donor · universal recipient · crossmatch · antibody

Opposites
vessel type

venous bloodarterial blood

Oxygenated cardiovascular fluid

oxygenated blood · arterial

Family

venous, vein, veins, veined, intravenous, blood, bloody, bloodied, bloodless

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