Exam 3

• blood


  cells Obtain nutrients from and deposit waste into
• The contraction phase of the heartbeat is systole; the relaxation phase is diastole
• Pulmonary circuit Heart's right half pumps deoxygenated blood to capillary beds inside the lungs then oxygenated Blood flows to the heart
• Systemic circuit

  Heart's left half pumps oxygenated blood to all body regions then deoxygenated Blood flows to the heart
• After you eat, blood passing through the GI tract

  Travels through the hepatic portal vein to a capillary bed in the liver
• Cardiac pacemaker


  Sets the normal rate of heartbeat
• Blood pressure


  Generated by heart contractions
• Blood pressure


  • Highest in arteries
  • Lowest in veins
• Ventricular contraction Drives blood through the systemic and pulmonary circuits; Outside the heart, blood pressure is highest in the aorta
• 6 steps of how viruses multipliy

  1. attachments
  2. entry
  3. replication
  4. synthesis
  5. assembly
  6. release
• what do valves do

  prevent blood from going back
• leading cause of death

  cardio vascular
• where are blood cells born

  only in your bone that are stem cells
• universal recipient blood type

  AB+ and O-
• arteries move blood away from the heart, veins carry blood to the heart
• memory cells


  when becoming immune
• b cells discreate pathgens
• histamine causes a increase in swelling
• artieries have big walls, veins have valves
• pathogens are stoped by stuff on skin
• 6-8% body weight is blood
• plasma makes up most of the body
• something has to be either RNA or DNA cant be both
• blood does not stay the same speed going through the body
• platelets are considered part of the blood
• HIV is cause by a virus not by bacteria
• theres a lot more white cells then just T and B cells
• 3 lines of defense

  1. physical-chemical barriers
  2. non-spesific
  3. spesific
• how are vaccines made

  dead part of a virus or weak piece of the virus
• plasma


  no cells, proteins, ions, vitamins
• cellular


  all cells, platlets
• cells are made in bone marrow
• capillaries 


  bring blood to cells, slowest exchange of blood, and facilitate exchange is the role
• why do arteries move blood fast

  arteries are moving blood being pumped out by the heart, the walls of arteries are thicker and more elastic than those of veins
• Heart Diagram 1

  Vena cava
• Heart Diagram 2

  Aorta
• Heart Diagram 3

  pulmonary artery
• Heart diagram 4

  left atruim
• Heart diagram 5

  left ventricle
• Heart diagram 6

  right ventricle