Chapter 46 Circulatory and Respiratory System Flashcards
How does blood flow through the heart?
vena cava - r. atrium - r. ventricle - pulmonary arteries - lungs - pulmonary veins - l. atrium - l. ventricle - aorta - body
What are the functions of arteries?
AORTA carry blood away from the heart
What are the function of veins?
VENA CAVA carry blood to the heart
What are the functions of capillaries?
exchange nutrients, gases, and wastes with cells
What regulates the contraction of the heart?
sinoatrial node
What is pulmonary circulation?
circulation to the lungs
What is systemic circulation?
to the body
What is coronary circulation?
to the heart
What is renal circulation?
to the kidneys
What is hepatic portal circulation?
to the small intestines and liver
What is the function of the lymphatic system?
returns fluids and filters pathogens
What are the components of blood?
plasma, erythrocytes RBC, leukocytes WBC, platelets
What is the function of plasma?
vitamins, minerals, aa, glucose, proteins, hormones
What is the function of leukocytes?
phagocytes destroy pathogens, produce antibodies
What is the functions of platelets?
fibrin help form a blood clot
What does blood type A contain?
antigen A, antibody B, can receive from O A, can donate to A AB
What does type B contain?
antigen B, antibody A, receive O B, can donate B AB
What does type O contain?
none antigens, antibody A B, receive O, donate all
What does type AB contain?
antigen A B, no antibody, receive all, donate AB
What is the path of air into and out of the respiratory system?
nasal cavity - pharynx - epiglottis - trachea - bronchi - bronchioles - alveoli - capillaries
How is carbon dioxide carried in the blood?
BICARBONATE ION, hemoglobin, plasma
What happens when we inhale?
diaphragm moves down, rib muscle moves up, increase lung volume, pressure in lungs decrease
What happens when we exhale?
diaphragm moves up, rib muscle moves down, decrease lung volume, pressure in lungs increase
