Please enable JavaScript.
Coggle requires JavaScript to display documents.
The Hearts Form and Funtion (macor level (Left side (aorta: recives blood…
The Hearts Form and Funtion
micro level
red blood cell (RBC)
Concave disck shape. Allows cells the form stacks through the vessels
No organelles: allows cell to carry more oxygen
Cardiac Muscle Tissue
Involuntary
spirals around heart for ringing out like motion during contraction
intercalated discs: communicate action potentials between cells
Branched cells shape so cells can be in contact with multiple cells
Ca++ leak channels
Prevent temporal summation by creating absolute refractory
allows for filling time
macor level
Intraventricluar septum: tissue between right and left sides
Left side
aorta: recives blood from the left ventricle, sends it through arteries to body
left ventricle: thicker tissue, transports blood to aorta
Let atrium: receives oxygenated blood from the pulmonary veins
Tricuspid valve : valve between left atrium and left ventricle. closed during ventricular contraction.
Right side
Auricle: allows walls to stretch more during exercise so more blood can be pumped.
deoxygenated blood
Pulmonary trunk: brings deoxygenated to lungs for oxygenation
Right atrium : connected to vena cavas
right ventricle: transports blood to pulmonary trunk
bicuspid valve: valve between right atria and left ventricle. Closed during ventricular contraction.
vena cavas: bring deoxygenated from the head and body to the right atria.
Pulmonary semilunar valve: open during right ventricular contraction, connects the right ventricle and pulmonary trunk
Blood vessel
taking blood to heart?
veIN
concave shape
-smooth muscle (involuntary contractions)
taking blood way from heart?
Capillaries: thin walls for diffusion
A(away)rtery
thick walls for high pressure
Myogenic
Heart rate initiated within its self
SA node: pace maker
AV node: acts as pacemaker if SA node doesn't work properly