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Bio-169 Lecture > Exam #2 > Flashcards

Exam #2 Flashcards

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Biology 101 flashcards
1
Q

Order starting with veins in blood flow?

A 
Veins
Heart
Arteries
Arterioles
Capillaries
Venules
Veins
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2
Q

Vessle wall layers?

A

Tunica externa
Tunica media
Tunics intima

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3
Q

VEINS

Tunica externa function?

A

Thicker than arteries. Prevents collapse of blood vessles

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4
Q

VEINS

Vasa vasorum function

A

Provides nutrition

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5
Q

VEIN

Function of tunica media?

A

Smooth muscle

changes vessle diameter

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6
Q

VEIN

Tunica intima function

A

Flat epithelial cells allow fluid to flow smoothly

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7
Q

VEINS

Lumen function?

A

Hollow space to allow for blood flow

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8
Q

ARTERY

Lumen function?

A

Hollow space for blood flow

Smaller in arteries than veins to maintain blood pressure

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9
Q

ARTERY

Tunica media function?

A

Contains smooth muscle to provide support and change vessle diameter to regulate blood pressure

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10
Q

ARTERY

Tunica intima function?

A

Contains elastic to provide flexibility

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11
Q

ARTERY

Tunica externa function ?

A

Composed of connective fibers anchors vessels to surrounding tissues.

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12
Q

Arterioles contain?

A

Smooth muscle to dilate and constrict

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13
Q

What part of contraction is systolic pressure?

A

Peak contraction

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14
Q

What part of contraction is dystolic pressure?

A

During relaxation

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15
Q

What type of junctions are in continuous capillaries?

A

Tight junctions

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16
Q

Function of arterial venous shunt?

A

Bipasses capillary bed from arterioles to venules

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17
Q

Arteries are what kind of reservoir?

A

Pressure reservoir

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18
Q

Veins are what kind of reservoir?

A

Blood reservoir

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19
Q

How does blood flow upwards in veins?

A

Contraction of skeletal muscle
Venous valves
Thorasic pressure cavity

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20
Q

Fenestrated capillaries have what type of junctions?

A

Tight junctions

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21
Q

What kind of junctions do sinusoid capillaries have?

A

Tight junctions

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22
Q

What is anastomosis?

A

Connections among vessles

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23
Q

What is the cardiac output equation?

A

F= change in pressure
—————————
Resistance

Bigger number on bottom means increases resistance

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24
Q

What is pulse pressure?

A

Systolic- dystolic

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25
Q

Equasion to calculate arterial pressure?

A

MAP= diastolic + 1/3(pulse pressure)

Mean Arterial Pressure

26
Q

Posterior intraventricular artery runs to?

A

The apex

27
Q

The right marginal artery supplies blood to?

A

Right side of myocardium

28
Q

The circumflex coronary artery supplies blood to?

A

Intraventricular septum and anterior walls of ventricles

29
Q

Anterior intraventrucular artery supplies?

A

L atrium and posterior walls of L ventricle

30
Q

Second heart sound is caused by?

A

Closure of semi lunar valves

31
Q

Cardiac output is?

A

The amount of blood pumped by each ventricle in one minute

32
Q

Stroke volume is?

A

The volume of blood pumped by one ventricle with each heartbeat

33
Q

Opening if lymphatic filaments is dependent on what?

A

Pressure from lymphatic fluid

34
Q

What is fiberous pericardium?

A

Loosely fitting superficial part of the sac enclosing the heart

35
Q

The epicardium is also called the?

A

Visceral layer

36
Q

Glistening white sheet of endothelium lining the inside if the heart is?

A

Endocardium

37
Q

The lining of the heart chambers is called the?

A

Endocardium

38
Q

Thin, slippery, two-layered membrane is the?

A

Serous pericardium

39
Q

Which valve is most often faulty?

A

Mitral valve

40
Q

Condition when valve flaps become stiff and constrict opening is called?

A

Stenosis

41
Q

Two types of lymphocytes are?

A

T-cells and B-cells

42
Q

Function of t cells?

A

Manage immune response

Attack and destroy infected cells

43
Q

Function of B cells?

A

Producing plasma, daughter cells that that secrete antibodies into blood or other bodily fluids

44
Q

Baroreceptors are related to?

They communicate with?

A

Pressure

Brain

45
Q

Chemoreceptors relate to?

They communicate with?

A

Chemicals

Brain

46
Q

Cardiac output equation?

A

CO = HR x (SV)

Cardiac output
Heart rate
Stroke volume

47
Q

Function of colloid osmotic pressure?

A

“Pulls” fluid out

48
Q

What is hydrostatic pressure?

A

Pressure of fluid

49
Q

How to find net filtration pressure?

A

NFP = (HPc + OPif) - (HPif + HPc)

Add everything going to the right
Minus
Add everything to the left

50
Q

Wgat lymphatic vessel collects interstitial fluid?

A

Lymphatic capillary

51
Q

What lymphatic structures trap bacteria in thr posterior oral cavity?

A

Palatine tonsils

52
Q

Spleens white blood vessles msinly composed of?

A

Lymphocytes

53
Q

Sequence of flow through lymphatic system?

A

Capillaries —> vessels —> trunks —> ducts

54
Q

Thoracic duct function?

A

Drains lymph from entire left side of body

55
Q

Where do T cells develop?

A

Thymus

56
Q

What filters lymph?

A

Lymph nodes

57
Q

What vessles transport interstitial fluid back to blood?

A

Lymphatics

58
Q

Lymphangitis presents itself as?

A

Red lines under the skin that are sensitive to touch.

59
Q

What enlarges when B lymphocytes are dividing rapidly?

A

Germinal centers

60
Q

Criss crossing reticular fibers are called?

A

Lymph sinuses

61
Q

First node that recieves drainage from a body area suspected of cancer is?

A

A sentinel node

Bio-169 Lecture (5 decks)

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