The Heart

Question 1

What is the pulmonary circuit

Answer 1

RA to RV out the pulmonary artery into the lungs

Question 2

What is the systemic corrupt

Answer 2

Left atrium to right ventricle out the aorta and into the whole body 

Question 3

Where is the tricuspid valve found?

Answer 3

Right ventricle allows blood flow from right atrium 

Question 4

Where is the bicuspid valve?

Answer 4

Left ventricle, allows blood from left atrium

Question 5

where is the SA node?

Answer 5

right atrium

Question 6

What are AV valves?

Answer 6

Bicuspid and tricuspid
Prevent back flow of blood abck into the atrium

Question 7

What are semi lunar valves?

Answer 7

Prevent back flow of blood back into ventricle.
Pulmonary trunk valve?
Aortic valve?

Question 8

what is the SA node?

Answer 8

the initiator for atrial contracttions.

Question 9

what is the AV node?

Answer 9

located above the tricupsid valve.
it helps stimulate ventricle contractions

Question 10

what are bundle branches?

Answer 10

branches off the nodes that help contraction proces sby sending singals tpt he fibers

Question 11

What are the purkinje fibers?

Answer 11

set of nerves that conduct impulses

Question 12

what is a cardiac cycle?

Answer 12

The process that occurs during 1 heartbeat

Question 13

what cuases the double hesrtbeat sound lub dub?

Answer 13

lub: SA node
dub: AV node

Question 14

What does medulla oblongta mean?

Answer 14

its apart of the brainstem responsible for thign slike breathing, blood prssure etc.

Question 15

what is systolic pressure?

Answer 15

force of blood being pushed out of the heart

contractions

Question 16

what is diastolic pressure?

Answer 16

when the heart is being refilled

relaxation

Question 17

what unit is blood pressure measured in?

Answer 17

millimetres of mercury
(mmhg)

Question 18

what is blood pressure?

Answer 18

the force of blood against vessel walls

Question 19

what is a normal blood pressure reading?

Answer 19

120/80

Question 20

what is hypertention?

Answer 20

• when blood pressure is to high
• heart is wokring too hard
• could cause heart attacks etc.

Question 21

what are some cuases of hypertention?

Answer 21

• ## to much salt in diet causes body to retain water=more blood

Question 22

what is arteroslcerosis

Answer 22

• plaque build up in the aorta
• loss of elasticity in arterioles

Question 23

artery description

Answer 23

• elastic, lead away fromt he body
• change size to regulate blood flow
• thick

Question 24

vein description

Answer 24

• 3 layers
• thin
• valves

Question 25

what are the 3 layers in arterys and veins?

Answer 25

1. externa 2. media 3. intima

Question 26

why r there valves in viens?

Answer 26

to cretae enough pressure for blood ot go bck inot th eheart and prevent blackflow

Question 27

capillarie description

Answer 27

- one cell layer thick - alos 1 blood cell at a time

Question 28

what does a capillary do?

Answer 28

role= exchange of materials into body cells

Question 29

what is na arteroile

Answer 29

- smaller artery that form capillary's - role is for body temp reg.

Question 30

coronary arteries and veins?

Answer 30

-on the outside of the heart -feed the heart muscle -from the aorta

Question 31

carotid arteries?

Answer 31

take blood fromm head

Question 32

chemoreceptors?

Answer 32

detect oxygen

Question 33

Barorecpetors

Answer 33

detect BP chage

Question 34

Jugluar vein?

Answer 34

is the match for the carotid arteis. no valves and move blood out of head

Question 35

subclivina arteries and veins?

Answer 35

for your amrs

Question 36

Mesentric artery and vein

Answer 36

branches into small instestine vein carries nutirents away

Question 37

hepatic portal?

Answer 37

transports blood from intestine into liver

Question 38

renal arteries and veins?

Answer 38

artery into kidneys veins back into heart

Question 39

Iliac arteries and veins?

Answer 39

down into the legs and back exampls. femoral