blood and lymph- circulatory system

Question 1

key functions of circulatory system

Answer 1

• uniterupted and continuous movement of blood
• delivers oxygen and nutrients to every cell
• remove wastes materials

Question 2

components of circulatory system

Answer 2

capillaries
veins
arteries
body tissue

Question 3

structural features of blood vessels

Answer 3

endothelium= lines inside of the vessels
elastic lamina= allow for stretching and rebound
lumen= where blood flows
valves= prevent backflow
smooth muscles

Question 4

artery

Answer 4

• thick muscular wall with elastic tissue
• capable of construction
• small lumen relative 2 diameter
• moves blood in pulses
• under high pressure
• blood flows rapidly
• NOT PERMEABLE

Question 5

artery

Answer 5

• thick muscular wall with elastic tissue
• capable of construction
• small lumen relative 2 diameter
• moves blood in pulses
• under high pressure
• blood flows rapidly
• NOT PERMEABLE

Question 6

capillary

Answer 6

• no muscle or elastic tissue
• not capable of constriction
• large lumen relative to diameter
• permeable
• blood pressie reduces thur network
• flow is slow and non pulsatile
• endothelium cell surround lumen

Question 7

vein

Answer 7

• thin muscular wall with little elastic tissue
• not capable of constriction
• large lumen relative to diameter
• not permeable
• have valves throughout
• blood flows slowly under low pressure with no pulses

Question 8

pattern of circulation in adults

Answer 8

• 2 circulatory paths
• PUMLONARY= oxygenated in the lungs
• SYSTEMIC= provides oxygenated blood to body

Question 9

pattern of circulation in adults (pulmonary)

Answer 9

blood is OXYGENATED in LUNGS

PULMONARY ARTERIES CARRY DEOXYGENATED BLOOD WHILE PULMONARY VEINS CARRY OXYGENATED BLOOD

deoxy= pulmonary artery run thru right atrium n ventricle
oxy= pulmonary vein run thru left atrium n ventricle

Question 10

pattern of circulation in adults (systemic)

Answer 10

provides oxy blood to body

IVC-> R.A-> R.V-> PULOM ART-> CAP F LEFT LUNG (becomes oxygenated)-> PULMONARY VEIN-> L.A-> LV-> AORTA (as and de)-> cap-> SVC

as: cap in head, arm n chest
de: cap in abdominal region n legs

Question 11

hepatic portal circulation

Answer 11

1. liver receive oxy blood from hepatic artery and deoxy blood leaves in hepatic vein
2. stomach and intestines receive oxy blood from gastric and mesenteric arteries
3. hepatic portal veins go from stomach and intestines to liver and send deoxy blood rich in nutrients