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BIOMEDICAL SCIENCE FOR OSTEO 7 > VESSELS > Flashcards

VESSELS Flashcards

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1
Q

WHAT IS THE BULKIEST LAYER OF ARTERIES

A

TUNICA MEDIA

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2
Q

WHAT ARE THE 4 TYPES OF ARTERIES

A

ELASTIC
MUSCULAR
ARTERIOLES
CAPILLARIES

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3
Q

WHICH ARTERIES ARE ELASTIC ARTERIES

A

MAJOR BRANCHES OF TEH AORTA MOVING TO THE MEDIUM SIZED ARTERIES

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4
Q

WHAT ARE ELASTIC ARTERIES AKA

A

CONDUCTING ARTERIES

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5
Q

TRUE OR FALSE - ELASIC ARTERIES CONTAIN LARGE AMOUNTS OF ELASTIN

A

TRUE

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6
Q

WHICH ARTERIES ACT AS PRESSURE RESEVIOURS THAT DAMPEN THE PULSATILE PRESSURE OF THE HEART

A

ELASTIC ARTERIES

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7
Q

WHAT IS THE ROLE OF MUSCULAR ARTERIES

A

DELIVER BLOOD TO SPECIFIC BODY ORGANS

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8
Q

WHAT TYPE OF ARTERY HAS THE THICKEST TUNICA MEDIA RELATIVE TO THEIR LUMEN SIZE

A

MUSCULAR ARTERIES

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9
Q

WHICH ARTERIES ARE MORE ACTIVE IN VASOCONSTRICTION

A

MUSCULAR ARTERIES

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10
Q

WHICH ARTERIES ARE LESS CAPABLE OF STRETCHING DUE TO LOWER LEVELS OF ELASTIN

A

MM ARTERIES

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11
Q

WHICH TYPE OF ARTERIES CONSTRICT OR DILATE IN RESPONSE TO NEURAL, HORMONAL AND CHEMICAL STIMULATION

A

ARTERIOLES

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12
Q

WHICH TYPE OF ARTERIES ARE REFERRED TO AS RESISTANCE VESSELS

A

ARTERIOLES

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13
Q

WHAT DO ARTERIOLES CONSTRICT AND DILATE IN RESPONSE TO

A

THE DEMAND OF THE TISSUES

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14
Q

CAPILLARIES ARE WIDE ENOUGH FOR?

A

ONE RBC TO PASS THROUGH

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15
Q

WHAT DO CAPILARIES CONSIST OF

A

A THIN TUNICA INTIMA

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16
Q

WHICH VESSELS SUPPLY O2 AND NUTRIENTS TO TISSUES

A

CAPILLARIES

17
Q

WHICH TISSUES DONT HAVE RICH CAPILLARY SUPPLY

A

CORNEA, CARTILAGE, ACL AND PCL

18
Q

WHAT DOES MICROCIRCULATION REFER TO

A

FLOW OF BLOOD FROM AN ARTERIOLE TO A VENULE THROUGH THE CAPILLARY BED

19
Q

WHAT IS THE ROLE OF CAPILLARY SPHINCTERS

A

TO ACT AS VALVES AND CONTROL THE FLOW OF BLOOD THROUGH A CAPILLARY BED

20
Q

WHAT HAPPENS WHEN CAPILLARY SPHINCTERS ARE OPEN

A

BLOOD THROWS THROUGH CAPILLARIES

21
Q

WHAT HAPPENS WHEN THE CAPILLARY SPHINCTERS ARE CLOSED

A

BLOOD FLOWS THROUGH THE VASCULAR SHUNT

22
Q

CAPILLARIES UNITE TO FORM?

A

VENULES

23
Q

WHICH VESSELS ARE EXTREMELY POROUS

A

POSTCAPILLARY VENULES

24
Q

WHAT IS THE ROLE OF POST CAPILLARY VENULES IN ACUTE INFLAMMATION

A

IF YOU TEAR A MM YOU GET AN ACUTE INFLAMMATORY RESPONSE, THE WBC AND PROSTAGLANDINS AND HISTAMINES GO THOUGH THE POROUS VENULES TO GET TO THE TISSUES

25
Q

WHAT ARE THE THREE DISTINCT TUNICS OF AN ARTERY

A

TUNICA ADVENTITIA
TUNICA MEDIA
TUNICA INTIMA

26
Q

DO VEINS HAVE THREE DISTINCT TUNICS?

A

YES

27
Q

T OR F VEINS HAVE THINNER WALLS THAN ARTERIES

A

TRUE

28
Q

T OR F VEINS HAVE A LARGER LUMEN THAN ARTERIES

A

TRUE

29
Q

WHAT PERCENTAGE OF BLOOD VOLUME DO VEINS ACCOMMODATE

A

65%

30
Q

WHAT MECHANISMS GET BLOOD TO THE HEART

A

VALVES PREVENT BACKFLOW, MM PUMP, RESP PUMP, SYMPATHETIC NERVES CAN VASOCONSTRICT VESSELS

31
Q

WHAT DO VENOUS VALVES DO

A

PREVENT BACK FLOW OF BLOOD

32
Q

WHAT IS THE MM PUMP DRIVEN BY

A

SKELETAL MM ACTIVITY

33
Q

WHAT IS THE RESP PUMP DRIVEN BY

A

PRESSURE CHANGES IN THE THORAX

BIOMEDICAL SCIENCE FOR OSTEO 7 (14 decks)

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