Blood And Circulatory System And Immune System Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Blood composition

A

Plasma
RBC
WBC
Platelets

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

Plasma

A

Transport CO2, digested food, urea, hormones, heat energy, water

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

RBC

A

Transport oxygen around blood
Biconcave LSA:V
No nucleus to carry more haemoglobin
Haemoglobin binds with oxygen to form oxyhaemoglobin

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

WBC

A

Protect from disease
Lymphocytes, produce antibodies to fight microbes
Phagocytes, engulfs, digests microbes

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

Platelets

A

Clots blood
Stops further bleeding
Stops microbe entering wound

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

Immune system

A
Phagocyte
Lymphocyte
Non specific,
Fever, skin, phagocytosis
Specific,
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Antibodies

A

Made by lymphocytes
Specific to antigen on surface of pathogen
Combine with antigens on germs, destroyed by phagocyte
Break cell wall
Stick germs together so they cannot enter cells or reproduce

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

General response

A
Aimed at any invading microbe
Phagocyte engulfs microbe
Traps microbe in vacuole 
Enzymes break it down
Soluble products absorbed into cytoplasm
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Specific immune response

A

Lymphocyte carries specific antibody
Encounters matching antigen, reproduce, makes copies of antibodies that neutralise pathogen
Memory cells made, remain in blood, immune

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

Vaccinations

A

Immune system responds more quickly when exposed to microbes

Memory cells formed

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

Order of operation in heart

A
Vena cava
Atrium
Ventricle
Pul artery
Pul vein
Atrium
Ventricle
Aorta
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Cardiac cycle

A

Blood enters atria
Atria wall contracts, raise bp, forces bicuspid and tricuspid valves open
Blood enters ventricles
Ventricles full, contract, increasing bp, close bicuspid and tricuspid
Ventricles continue to contract, p increases, semi lunar valves forced open
Blood ejected into aorta and pul artery
Ventricles empty, high p in aorta and pul artery close valves
Repeat

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

Heart rate when we excersize

A
Heart increase no of beats/min 
Stroke volume increases
Muscles need more energy to contract
More aerobic respiration
More oxygen, glucose
Produce more CO2, water, must be removed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Heart rate when we are stressed

A

Hr increases
Adrenaline
Fight, flight?

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

Artery

A
Thick wall
Small lumen
Blood from heart
Fast flow
Hp
No valves
Bright red
Pulse
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Vein

A
Thin wall
Large lumen
Blood to heart
Lp
Dark red
Between muscles
Valves
No pulse
17
Q

Capillary

A
1 cell thick
V small lumen
From artery to vein
Blood flow slows down
No valves
No pulse
Bright red to dark red