Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biology > The Circulatory System > Flashcards

The Circulatory System Flashcards

1
Q

Artery Structure
Walls

A

Thick outer walls and connective tissue

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

Artery structure
Muscles

A

Thick layer of muscles and elastic fibres.

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

Artery structure
Lumen

A

Small lumen

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

Artery structure
Valves

A

No valves are present

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

1.Artery function

A

Arteries carry blood away from ❤️

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

Able to withstand high pressure created by the ❤️

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

Capillaries Structure

A

They have very thin walls made up of only one layer of endothelial tissue only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

1.Capillaries Function

A

Connect arteries to veins.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  1. Capillaries Function
A

Allow substances to flow easily enter and leave he body by diffusion since the have thin walls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Squamous Epithilium

A

Have thin walls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Veins Structure
Walls

A

Thin outer walls

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

Veins structure
Muscles

A

Thin layer of muscles and elastic fibres

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

Veins structure Lumen

A

Large lumen

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

Veins structure
Valves

A

Valves present

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

1.Veins function

A

Carry blood back to ❤️

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

Valves in veins prevent back flow of blood.

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

Blood pressure

A

Hypertension

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

Hypertension

A

A pressure reading of 140/90

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Low blood pressure

A

Hypotension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Hypotension

A

Usually associated with systolic pressure reading below 100mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Diseases of ❤️ and Circulatory System

A

Conventional cardiovascular defect.
Stroke
Heart attacks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q
  1. Congenital Cardiovascular Defect
A

Refers to a heart defect that a child is born with.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Congenital Cardiovascular Defect possible causes

A

Family genes from parents
Drugs or medication taken by mother during pregnancy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Heart attacks

A

Certain part of the body does not recieve oxygen and nutrients.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Stroke
When a blood clot forms in capillaries in the brain
26
Treatment of ❤️ disease
Stents Pacemakers Bypass surgery Valve replacement ❤️ transplant
27
Stents
Expandable tube inserted into coronary artery to keep artery open at all times
28
Pacemakers
SA node Allows ❤️ to beat in rhythmical manner
29
Bypass surgery
One or more of coronary arteries are blocked
30
Valve replacement
When 1 or more valves of the ❤️ are faulty
31
Heart transplant
When the muscles of the ❤️ are severely damaged
32
Cardiac Cycle
Refers to contractions and relaxation of the ❤️ muscle
33
Heartbeat
Lub dub
34
SA atrial node
Wall of right atrium has group of specialized cells
35
3 phases associated with each heartbeat (cardiac cycle)
1.Atrial Systole 2. Ventricular systole 3.Artricular and ventricle diastole
36
Atrial Systole
0.1s Muscles of the atrial contract
37
Ventricular Systole
0.3s Muscles of ventricles contract
38
Atrial and ventricular Diastole
Muscles of atria and ventricle relax
39
Medulla oblongata
Heartbeat controlled by brain
40
Sphygmomanometer
Measures B.P
41
Pulmonary artery 🔵
Carries 🔵 blood from rt ventricle to lungs
42
Superior Vena Cava 🔵
Carries 🔵 blood from upper body to rt atrium
43
Right atrium 🔵
Receives 🔵 blood from superior and inferior vena cava
44
Tricuspid valve 🔵
Prevents blood from rt ventricle flowing back to right atrium
45
Tendonous Chords 🔵
Prevent valves segments from flapping back into atrium
46
Right ventricle 🔵
🔵 blood from this chamber is pumped to lungs
47
Inferior vena cava 🔵
Carries 🔵 blood from lower part of body to rt atrium
48
Thinner muscular wall
Contraction of this muscular wall focuses on blood to love rt. Atrium to lungs
49
Aorta 🔴
Transports oxygenated blood from left ventricle to all parts of body
50
Semi lunar valves🔴
Prevents back flow of blood from lungs to left atrium
51
Pulmonary veins🔴
Carries oxygenated blood from lungs to left atrium
52
Left atrium 🔴
Receives oxygenated blood via pulmonary veins via lungs
53
Bicuspid* Mitral valve 🔴
Prevents from left ventricle to flowing back in left atrium
54
Left ventricle 🔴
Oxygenated blood from this chamber is pumped throughout the body
55
Thicker muscular wall
Provides powerful contractions to pump blood from left ventricle to all parts of the body
56
Septum
Separating wall preventing the mixing of 🔴 and 🔵 blood
57
Pericardium
Membrane that encloses the ❤️
58
Open Circulatory System
Arthropods and molluscs have open circulatory system since blood is not confined to blood Vessels only.
59
Closed Circulatory System
All Vertebrates including mammals
60
Smaller veins
Venules
61
Double Circulatory System
Humans have this because blood is pumped from ❤️ along 2 circuits
62
Pulmonary circuit
🔵 blood moves from ❤️ along 2 circuits and returns to ❤️ as 🔴 blood
63
Systemic system
🔴 blood is pumped throughout the body and returns to ❤️ as 🔵
64
Lymphatic system
Drainage system that allows tissue fluid , that did not return to the blood via the capillaries , to return blood via lymph Vessels
65
Lymph returns to blood system at 2 sites , namely.
Right lymphatic duct Left thoracic duct
66
Lymphatic duct
Connected to right subclavian vein
67
Left thoracic duct
Connected to subclavian vein
68
Structure of lymphatic system
Lymph Vessels Lymph nodes
69
Lymph Vessels
Thin walled with semi lunar valves that prevent back flow of lymph.
70
Lymph nodes
Present at various sites in body and contain white blood cells
71
Functions of lymphatic system
Returns tissue fluid back to blood
72
Function of lymph Vessels
Lacteal absorbs fat and transports it to left subclavain vein
73
Function of lymph nodes
With WBC destroy bacteria and viruses that may be present to lymph
74
Blood
Flows in blood Vessels. Moves due to heart beating
75
Lymph
Flows in lymph Vessels. Moves due to external pressure of muscles during activity

Biology (17 decks)

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