Study Flashcards
In order to restore homeostasis in an individual,which sequences of responses occur when the individual becomes dehydrated through prolonged perspiration?
-decreased water in blood
-increased release of ADH
-increased water reabsorption by the kidneys
What is the vessel that carries oxygenated blood into the heart?
Pulmonary vein
Vessel that carries deoxygenated blood out of the heart
Pulmonary arteries
Chamber that pumps oxygenated blood out of the heart
Left ventricle
Chamber that receives deoxygenated blood
Right atrium
Largest barrier protecting the body
Skin
Produces antibodies
Plasma B cell
Phagocytic nature protects the body from bacteria
Macrophages
Kills micro-organisms in food
Stomach acid
White blood cell function
Macrophage
Ingest antigens
What occurs during the specific immune response
Pathogen breaches the barrier of the skin and enters body
Macrophages engulf the pathogens by phagocytosis
The antigen marker on the pathogen are displayed on the membrane of the macrophages
Helper T cells bind to the antigens and release chemical messengers that activate b and T cells
Contraction of the Artia
Sinotrial node (SA)
Contraction of the ventricles
Atrioventricular node and purkinjo fibers
Factors affecting blood pressure
-Increased blood volume
-increased cardiac output
-decreased elasticity of blood vessel
-decreased diameter of blood vessel
The volume of the blood that flows from each side of the heart per minute can be calculated to record the cardiac output .The cardiac output is affected by?
Stroke volume and heart rate
