chapter 22 Flashcards
receives blood from the body
Pump out to lungs
Right side of the heart
receives blood from lungs
pump out to the body
Left side of heart
shinny inner surface
parietal serous pericardium
shinny clear covering directly on the heart muscle
Visceral serous pericardum
a serous membrane attached directly to the fibrous layer
parietal pericardum
forms a thick outer layer of connective tissue
fibrous pericardium
the serous membrane that forms the outer layer of the heart wall
visceral pericardium
caused by closing values
heart sounds
what supplies the left atrium and ventricle
circumflex
another word for functional end arteries
coronary arteries
what is tachycardia
an increased heart rate that shortens diastole
when the atrioventricular values close the produce what…the first sound
lubb sound
the second sound , when the semilunar value closes …
dubb sound
fibrous skull of heart is formed from what
dense regular connective tissues in the atria and the ventricles
what are the functions of the fibers Skelton
Provides structural support between the atria and the ventricles
supportive fibers rings to anchor the heart values
acts as an electrical insulator to prevent actions potential in the atria from passing to the ventricles
trabecular carneae
irregular muscular ridges
septomarginal trabecula
connects papillae muscles to the inter ventricular septum
The contraction of the heart
systole
the relaxation phase of a heart chamber
diastole
The two basic types of blood vessels are ______, which carry blood away from the heart, and ______, which carry blood toward the heart
arteries, veins
The ______ surface of the heart, formed primarily by the left atrium, is called the ______.
posterosuperior, base
Order the components of the pericardium from deepest to most superficial.
The heart is slightly rotated such that its right side is located more ______, while its left side or left border is located more ______.
anteriorly, posteriorly
heart wall structure
S- sam simple squamous
A - Ate. areolar connective and fat
M - My myocardium (cardiac)
A - apples Areolar connective tissue
E -Everyday endocardium (simple A)
The ______ surface of the heart and the ______ surfaces of the heart valves are covered by endocardium.
internal, external
The first heart sound heard with a stethoscope is the result of the ______ valves closing; producing a “lubb” sound.
Atrioventricular
23.1 23.3 23.4 23.5
