Flashcards in Circulatory & Lymphatic & Immune Systems Deck (16)
In the circulatory system, gas exchange occurs in the
Which blood vessels are a single cell in thickness?
Veins and arteries are composed of how many layers?
A characteristic of arteries is
They have a thick muscle layer lining the lumen
An average adult has _______ L of blood.
Plasma constitutes _______ % of total blood volume.
55% (always little over half)
Another name for a WBC is
The main function of leukocytes is to
Protect body against infection
Which leukocyte is known as a phagocyte?
Platelets remain in the circulation for
Which cellular component is responsible for the transport of hemoglobin?
Which laboratory test does assist in diagnosing HIV infection?
A group of inherited disorders marked by increased bleeding times is known as
Which organs are included in the lymphatic system?
Spleen, Thymus, Tonsils
Helper T cells are needed to make