HES

Question 1

Auricle

Answer 1

extension of atria
near superior heart surface

Question 2

What are some characteristics and features of the auricle?

Answer 2

Thin walled; fill with blood
and empty into atria
Increase capacity of atrium

Question 3

Sulcus

Answer 3

fat filled grooves

Question 4

Features of the pericardium membrane

Answer 4

surrounds heart
outer fibrous pericardium
inner serous pericardium
endocardium

Question 5

outer fibrous pericardium

Answer 5

tough, dense connective tissue
protects heart, maintains position in thorax

Question 6

What is the inner serous pericardium made up of and what does it do?

Answer 6

Parietal pericardium
Inner visceral pericardium
pericardial cavity
secretes lubricating serous fluid into pericardial cavity to reduce friction

Question 7

parietal pericardium

Answer 7

fused to fibrous pericardium

Question 8

inner visceral pericardium

Answer 8

fused to myocardium

Question 9

endocardium

Answer 9

lines heart chambers

Question 10

septa/septum

Answer 10

divides the heart into chambers
interatrial and interventricular

Question 11

valves

Answer 11

atrioventricular
tricuspid
mitral (bicuspid)

Question 12

semilunar

Answer 12

lead to pulmonary trunk and aorta

Question 13

Tricuspid

Answer 13

3 flaps for endocardium
connected by chordae tendineae to papillary muscles
controls the opening and closing of the valves

Question 14

pulmonary

Answer 14

3 small flaps, endothelium
closes when blood flows from pulmonary trunk to ventricle

Question 15

Mitral

Answer 15

bicuspid
2 flaps

Question 16

Aortic

Answer 16

prevents backflow from aorta

Question 17

Superior and inferior vena cava

Answer 17

empty into right atrium

Question 18

superior

Answer 18

above diaphragm

Question 19

coronary sinus

Answer 19

drains coronary veins

Question 20

Right ventricle

Answer 20

receives blood from R atrium via tricuspid