Circulatory System

Question 1

What are the functions of the circulatory system ?

Answer 1

• transports oxygen and nutrients to cell
• transports carbon dioxide and waste away from cells
  -Carries hormones through body
  -Carries antibodies and immune helpers through the body
• Maintains fluid levels in body
• Regulate body temperature

Question 2

Cardiac muscle tissue is…

Answer 2

Striated; involuntary; branched

Question 3

Cardiac muscle cell has how many mitochondria?

Answer 3

5000

Question 4

Skeletal muscle cell has how many mitochondria?

Answer 4

200

Question 5

Bigger animal means what about the heart?

Answer 5

Lower heart rate but
Bigger heart

Question 6

Deoxygenated blood enters the heart via the vena cavas and goes…

Answer 6

Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary trunk
To lungs

Question 7

Oxegynated blood comes from the lungs into…

Answer 7

Pulmonary veins
Left atrium
Mitral valve
Left ventricle
Aortic valve
Aorta

Question 8

Veins and arteries on the heart are called…

Answer 8

Coronary veins and arteries

Question 9

Which are the atrioventricular valves ?

Answer 9

Tricuspid and Mitral valves

Question 10

Which are the semilunar valves ?

Answer 10

Pulmonary and aortic valve

Question 11

The tunica media is made up of …

Answer 11

Smooth muscle and elastin allowing it to constrict and stretch

Question 12

The Lub sound of the heart is…

Answer 12

The atrioventricular valves shutting

Question 13

The dub sound is the …

Answer 13

Semilunar valves shutting

Question 14

What is a normal resting heart rate?

Answer 14

60-100 bpm

Question 15

What is a chronically high heart rate ?

Answer 15

Over 100 bpm is tachycardia

Question 16

What is a chronically low heart rate?

Answer 16

Less then 40 bpm is bradychardia

Question 17

What is pulse?

Answer 17

The change in diameter of your arteries with each beat

Question 18

What is systole?

Answer 18

Ventricles are contracting and the heart is emptying

Question 19

What is diastole?

Answer 19

The ventricles are relaxing and heart is filling

Question 20

What is blood pressure?

Answer 20

Force of blood pressing and against wall of arteries

Question 21

What is systolic pressure ?

Answer 21

Pulse from ventricular contraction (higher #)

Question 22

What is diastolic pressure?

Answer 22

Pulse from ventricular relaxation (lower #)

Question 23

What is the job if basophils ?

Answer 23

Basophils play a role in the narrowing of airways (asthma)
Make 1% of leucocytes

Question 24

What is the job of monocytes ?

Answer 24

Clean away dead cells
Make 5-12% of leucocytes

Question 25

What is the job of eosinophils ?

Answer 25

Trigger allergy symptoms 5% of Leucocytes

Question 26

What are lymphocytes?

Answer 26

Key to how vaccines work

Question 27

What are neutrophils ?

Answer 27

Key responders to bacteria Make up most Leucocytes

Question 28

What organ is associated with the hepatic artery and vein?

Answer 28

The liver

Question 29

What organ is associated with the renal artery and vein?

Answer 29

The kidneys

Question 30

What attracts platelets when cut?

Answer 30

Collagen

Question 31

What is a scab?

Answer 31

Platelets trapped in a fibrin mesh

Question 32

What is the SA node?

Answer 32

Sinoatrial is a bundle of tissue that stimulates muscle cells to contract and relax (the pacemaker).

Question 33

What is the AV node?

Answer 33

Atrioventricular transmits the electrical signal through the bundle of His fibres.

Question 34

What is the bundle of His- Purkinje fibres?

Answer 34

Initiates contraction of muscle cells in right and left ventricles from septum.

Question 35

What happens in the P wave?

Answer 35

Atrial contraction

Question 36

What happens in the QRS complex?

Answer 36

Ventricular contraction and the atrioventricular valves close (LUB)

Question 37

What happens in the T wave?

Answer 37

Ventricles relax and semilunar valves close (DUB)

Question 38

What are the 5 types of blood vessels?

Answer 38

Artery Arteriole Capillaries Venule Vein

Question 39

The pointy end of the heart is called...

Answer 39

The apex

Question 40

What is atherosclerosis?

Answer 40

The thickening or hardening of the arteries caused by a buildup of plaque.

Question 41

What is an angioplasty?

Answer 41

The surgical repair/unblock of a coronary artery by inserting a small balloon catheter.

Question 42

What is a stent?

Answer 42

A small wire mesh tube is used to prop open a cleared artery.

Question 43

What is pulmonary circulation?

Answer 43

When blood goes from the heart to the lungs & back to the heart (pick up oxygen)

Question 44

What is systemic circulation?

Answer 44

When blood goes from heart to body & back to the heart (delivering oxygen)

Question 45

Where does most blood go from the left heart pump?

Answer 45

Kidneys 22% Gastrointestinal system, spleen 21%

Question 46

Where does the least blood go from the left heart pump?

Answer 46

Heart muscle 3%

Question 47

What parts of the body get 6% of blood?

Answer 47

Liver & Skin

Question 48

What part of the body gets 14% of the blood pumped?

Answer 48

Brain

Question 49

What part of the body gets 15% of the blood pumped?

Answer 49

Skeletal muscle

Question 50

What part of the body gets 5% of the blood pumped?

Answer 50

Bone

Question 51

What is a murmur?

Answer 51

Any irregular heart sounds

Question 52

If valves are leaky and sound swishy its called...

Answer 52

Regurgitation

Question 53

If valves are narrowed and sound whistley its called...

Answer 53

Stenosis

Question 54

What is used to take blood pressure?

Answer 54

Sphygmomanometer

Question 55

What is hypertension?

Answer 55

When force of blood pushing against artery walls is to high (High blood pressure)

Question 56

What is a myocardial infraction?

Answer 56

Insufficient blood flow to the heart through coronary arteries (Heart attack)

Question 57

What does and ECG measure?

Answer 57

Electrical impulses generated by the heart beating.