Circulatory System

Question 1

What is the order of the pathway of blood through the heart?

Answer 1

right atrium, region ventricle, pulmonary artery, capillaries in lungs, pulmonary vein, left atrium, left ventricle, aorta

Question 2

Capillaries: site of ___ and ___ exchange, ___ travels from area of ___ to ___ concentration from lung to tissue and ___ travels from tissue to lung

Answer 2

O2/CO2/O2/high/low/CO2

Question 3

arteries:

Answer 3

vessels that carry blood from heart to tissues, all carry oxygenated blood (exc. the pulmonary artery), they have thick, expandable walls

Question 4

atherosclerosis:

Answer 4

formation of plaque inside arteries

Question 5

plaque:

Answer 5

composed of mostly Ca and cholesterol, can break off and form clots

Question 6

non-modifiable risk factors for atherosclerosis:

Answer 6

gender, age, family history

Question 7

modifiable risk factors fro atherosclerosis:

Answer 7

smoking, alcohol consumption, stress, sedentary behaviour, obesity, hypertension, diet, diabetes, chronic inflammation

Question 8

veins:

Answer 8

vessels that carry blood to the heart, all carry deoxygenated blood (exc. pulmonary vein), have thin walls and are more rigid than arteries

Question 9

cardiac output:

Answer 9

volume of blood pumped by heart in a specific time period

Question 10

peripheral resistance:

Answer 10

resistance to pumped blood by arterioles

Question 11

arterioles:

Answer 11

small arterial branches

Question 12

Metabolic Syndrome: accumulation of ___+ of the following factors: (5)

Answer 12

3

• abdominal obesity
• triglycerides>150mg/dL
• HDL<40mg/dL (men) or <50mg/dL (women)
• blood pressure >130/85mmHg
• fasting glucose > 100mg/dL

Question 13

Recommendations for ___ disease:

• for population: make ___ changes to stall or prevent ___, get ___ ___
• for individuals: ___ changes for those who need
• for individuals: genomics may all for individual ___ ___

Answer 13

chronic

• dietary/disease/screening tests
• dietary
• nutritional recommendations

Question 14

Lymphatic system:

Answer 14

loosely organized system of vessels and ducts that convey fluids towards the heart, GI portion carries products of fat digestion into the blood stream

Question 15

Lymph:

Answer 15

clear/yellowish fluid, similar to blood but missing red blood cells and platelets, from the GI tract, transports fat and fat-soluble vitamins to blood stream