Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

biology > circulatory system > Flashcards

circulatory system Flashcards

1
Q

list three blood vessels

A

arteries, veins, and capillaries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what do arteries do and what characteristics help it’s function?

A
  • arteries carry blood away from the heart
  • its high elasticity walls allow easier expansion for blood
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what do veins do and what characteristics help it’s function?

A
  • veins carry blood towards the heart
  • it’s lower elasticity walls prevent backwards flow
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what do capillaries do?

A
  • join the arteries and veins
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is blood pressure?

A

blood pressure is the pressure exerted in the walls of the vessels while blood passes through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is the maximum and minimum pressure of blood pressure called?

A

systolic and diastolic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the heart made of and how does that aid its function?

A
  • made of cardiac muscle
  • arranged to make contraction and relaxation without getting tired
  • ensures blood flows in one direction
  • separates oxygen rich blood from oxygen poor blood
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the structure of the heart?

A

contains four chambers:

  • two top atriums
  • two bottom ventricles ( one in the left and the right sides )
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the flow of blood in the heart?

A
  1. two top atriums fill with blood
  2. two bottom ventricles receive blood from atriums
  3. pumps it back out into the body or lungs
    - septum separates the atria and ventricles
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what are the four chambers of the heart?

A
  1. pulmonary artery
  2. pulmonary vein
  3. aorta
  4. semilunar valve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is a pulmonary artery?

A

large blood vessel that carries blood from the heart to the lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is the pulmonary vein?

A

blood vessel that carries blood from the lungs to the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is the aorta?

A

artery that carries blood from the heart to other arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the semilunar valve?

A

artery that carries blood away from the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

blood from where does the right side of the heart encounter?

A

blood coming back from the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what opens into the right atrium?

A

vena cava

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what does the vena cava collect?

A

oxygen poor blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

where does oxygen poor blood go for gas exchange?

A

left and right lungs

19
Q

what type of blood does the left side of the heart receive? and from where

A

oxygen rich blood from the lungs

20
Q

what does blood consist of?

A

plasma ( fluid )

red blood cells, white blood cells, platelets ( solid )

21
Q

what are the three main proteins in blood?

A
  1. albumin
  2. globulins
  3. fibrinogen
22
Q

what is plasma?

A
  • clear yellowish fluid
  • 92% water
  • 7% dissolved blood proteins
  • 1% inorganic ions
23
Q

what is the function of red blood cells?

A

oxygen transportation

24
Q

what effects efficiency of red blood cells?

A

carrying capacity determined by rbc’s hemoglobin and amount of other rbcs present

25
Q

what is the function of white blood cells?

A

infection and sickness control

26
Q

what happens to the percentage of white blood cells if your body is fighting disease?

A

1% but may increase if your body is fighting an infection

27
Q

list the main types of white blood cells

A
  1. neutrophil
  2. eosinophil
  3. basophil
  4. lymphocyte
  5. monocyte
28
Q

define neutrophil

A

most abundant wbc

29
Q

define eosinophil

A

found in mucus linings

30
Q

define basophil

A

disease attractor

31
Q

define lymphocyte

A

produces antibodies

32
Q

define monocyte

A

general destroyer of bacteria

33
Q

what are the 2 main functions of blood

A
  1. transportation
  2. temperature regulation
34
Q

how does blood transport

A
  • removes waste of cellular processes by bringing it to kidneys
  • brings carbon dioxide to lungs for excretion
35
Q

how does blood regulate temperature

A

vasodilation - widening of blood cells to release heat

vasoconstriction - narrowing of boood cells to conserve heat and enacts waves of muscle contraction

36
Q

what is the sinoatrial node

A

stimulates muscle cells to contract and relax rhythmically

37
Q

what are the stages of the ECG diagram

A

P wave, QRS complex, T wave

38
Q

what is the P wave

A

SA nodes fire and atria contracts

39
Q

what is the QRS complex

A
  • AV nodes stimulate ventricles
  • atrioventricular valves close
  • produces “lub” noise
40
Q

what is the T wave

A
  • occurs when ventricles relax
  • semilunar valves close to produce the “dub”
41
Q

what is the atrium

A

two top chambers: left and right atrium

42
Q

what is the sinoatrial node

A

stimulates muscle to contract and relax rhythmically

43
Q

what is the atrioventricular node

A

transmits electrical signals through the bundle of his and then to the purkinje fibres

biology (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions