ANIMAL PHYSIOLOGY - CARDIOVASCULAR SYSTEM Flashcards
supplies blood to heart itself
coronary
supplies arterial blood to liver
hepatic
suppliers arterial blood to brain
cerebral
supplies arterial blood to kidney
renal
supplies arterial blood to digestive tract
splanchnic
heart beat process
atrial systole –> ventricular systole –> diastole
this is where the complete filling (contraction) of ventricles happen
atrial systole
this is where the contraction: av valves close - aortic and pulmonary valves open (low lub sound) and aortic and pulmonary valves (high pitch dub sound) happen
ventricular systole
this is wherein (relaxation) av valves open; 3/4 of ventricular filling happens
diastole
fluid portion of blood containing ions, inorganic molecules, and organic molecules that are in transit to various parts of body
plasma
make up the white blood cells (WBC; leukocytes), RBC (erythrocytes) and platelets, w/c are all suspended in plasma
blood cells
number of each kind of cell present in blood is determined by means of a _____________
haemocytometer
(under WBC / leukocytes) these are the most numerous; main function is phagocytic in nature
granulocytes
(under granulocytes) 3 types released during allergic reaction and infection and fights of diseases
neutrophils, eosinophils, and basophils
mostly formed in lymph nodes, spleen and thymus and to some extent also in bone marrow; believed to produce antibodies and counteract toxins
lymphocytes
large non-nuclear leukocytes; actively phagocytic and are capable of ingesting all sorts of foreign matter
monocytes
act to defend the body against infection; phagocytic, produce antibodies and counteract toxins
leukocytes
are biconcave disks manufactured in the bone marrow; these non-nucleated cells are soft and contain hemoglobin
erythrocytes
the oxygen-carrying property of hemoglobin is due to ________ in the pigment
iron content
hemoglobin binds O2 to form ______, O2 attaching to the Fe++ in the heme
oxyhemoglobin
are small oval disk-like granulated bodies 2-4 microns in diameter; when blood vessel wall is injured, these collect at site, sticking to vessel wall and release serotonin, leads to vasoconstriction
platelets / thrombocytes
platelets / thrombocytes liberate ______ that aid in blood clotting
thromboplastin
blood vessel that carries blood away from the heart; carries oxygenated blood (except pulmonary artery)
artery
blood vessel that carries blood back to the heart; carries unoxygenated blood (except pulmonary vein)
vein
lymphatic system is composed of:
lymph node, lymph vessel, and lymph
these function for the production of lymphocytes; stop foreign materials that come to them in lymph
lymph nodes
lymph capillaries have more _________ _____ than blood capillaries
permeable walls
lymph fluid will enter circulatory system through _____ and the _______
right lymphatic duct and thoracic duct
