07. Cardiovacular, lymphatic and immune system Flashcards
Cardi/o
Heart
What is a root term and combining form for heart
Cardi or Coron
Cardio or Corono
Coron/o
Heart
angi/o
Vessel
What is the root term and combining form for vessel
angi
angio
aort/o
Aorta
arteri/o
Artery
arteriol/o
arteriole
phleb/o
Vein
ven/o
Vein
venul/o
Venule
-stenosis
narrowing
-sclerosis
hardening
Pericardium
Outermost layer
Myocardium
Middle layer
Endocardium
Innermost layer
Septum
muscular wall between L and R side
Bicuspid valve
2 = left side
Tricuspid
3 = right side
Semilunar valves
Aortic and pulmonary valves
chordae tendinae
thing strong fibrous chords connecting leaflets of bicuspid and tricuspid vale to papillary muscle
MI
myocardial infarction
Atherosclerosis
hardening of arteries caused by collection of fatty plaque
Cardiac output
The volume of blood ejected from each VENTRICLE every minute
Stroke volume
The volume of blood expelled by EACH contraction of the ventricles
Heart rate
Number of times the heart beats per minute
Atrial systole
Contraction of the atria
Ventricular systole
Contraction of the ventricles
Diastole
Relaxation of both atria and ventricles. (Blood flows into the heart)
tachycardia
abnormal condition of fast heart rate
bradycardia
abnormal condition of slowheart rate
hypertension
HTN (high blood pressure)
hypotension
low blood pressure
arteriosclerosis
hardening of arteries
Erythrocytes
Red blood cell
aneurysm
an abnormal swelling or bulge in the wall of a blood vessel, such as an artery
Angina
chest pain caused by a lack of blood and oxygen to the heart muscle
baroreceptor reflex
helps regulate Bp by vasolidation/vasoconstriction, increasing/decreasing HR and SV
Leukocytes
White blood cells
Haemolysis
burst of RBC
anaemia
A condition of abnormally low number of red blood cells in the blood.
thrombocytes
Blood clotting cells
Haemostasis
prevent/stop bleeding
Thrombosis
Condition of blood clots
Primary lymphatic tissue
Bone marrow
thymus
Lymph/o
Lymph fluid
Lymphaden/o
Lymph node (gland)
Lymphangi/o
Lymph vessel
Splen/o
spleen
Thym/o
Thymus gland
Myel/o
Bone marrow
Aden/o
Gland
Outline the baroreceptor reflex
Stimulus = high blood pressure
↓
Receptor = increased firing of baroreceptors (in the aorta and carotid arteries)
↓
Coordinator = vasomotor and cardioregulatory centre in the brainstem
↓
Effectors = reduce HR/CO and vasodilation of blood vessels
↓
Response = reduce blood pressure
General term for a range of specialised white blood cells that respond to antigens
Lymphoctyes
Lymphoctyes
General term for a range of specialised white blood cells that respond to antigens
T cells that contain lethal chemicals that destroy foreign, infected and altered cells (ie cancerous/virus-infected cells)
Cytotoxic T cells
Cytotoxic T cells
T cells that contain lethal chemicals that destroy foreign, infected and altered cells (ie cancerous/virus-infected cells)
Phagocytic cell which engulfs and destroys pathogen (second line of defence)
acts as an antigen presenting cell in the specific immune response
Macrophage
Macrophage
Phagocytic cell which engulfs and destroys pathogen (second line of defence)
acts as an antigen presenting cell in the specific immune response
Antibodies are produced WITHIN the person
Active immunity
Active immunity
Antibodies are produced WITHIN the person
Passive immunity
Antibodies are produced outside of the body INTRODUCED into the body
Antibodies are produced outside of the body INTRODUCED into the body
Passive immunity
Cells that give long term memory of specific antigen and long lived
B – memory cells
B – memory cells
Cells that give long term memory of specific antigen and long lived
Describe the first line of defence
non specific/innate
Includes intact skin, mucous membrane and chemical (tears) and microbial barriers that prevent entry of pathogens into the body
non specific/innate
Includes intact skin, mucous membrane and chemical (tears) and microbial barriers that prevent entry of pathogens into the body
First line of defence
Describe the 2nd line of defence
non specific/innate
Inflammation –> histamine released causing vasodilation and increased leakiness of WBC and plasma to trap pathogen
Phagocytosis –> phagoctyes engulf and destroy pathogen
non specific/innate
Inflammation –> histamine released causing vasodilation and increased leakiness of WBC and plasma to trap pathogen
Phagocytosis –> phagoctyes engulf and destroy pathogen
2nd line of defence
Describe the 3rd line of defence
Adaptive/specific immune response
B and T cells are able to detect and recognise the specific antigens
B - Plasma cells produce antibodies which can detect and destroy the specific antigen.
Cytotoxic T cells release cytotoxins which kill the invading pathogen.
Memory B and T cells remain in the circulation allowing for a faster and stronger response on secondary exposure to the same antigen, hence providing immunity against the disease.
Adaptive/specific immune response
B and T cells are able to detect and recognise the specific antigens
B - Plasma cells produce antibodies which can detect and destroy the specific antigen.
Cytotoxic T cells release cytotoxins which kill the invading pathogen.
Memory B and T cells remain in the circulation allowing for a faster and stronger response on secondary exposure to the same antigen, hence providing immunity against the disease.
3rd line of defence