JessicaNyquistCardiovascularSystem
Blood Vessels
Blood
Heart
Pericardial Membranes
Heart Valves
Myocardium Anatomy
Conduction System
Heart Wall
Arteries
Veins
Capillaries
Plasma
Cells
Erythrocytes
Leukocytes
Platelets (thrombocytes)
liquid portion of blood
90% water, 10% components
Arterioles
Venules
Fenustrated
Sinusoid
Continuous
Elastic / Conducting
Muscular / Distributing
Oxygen transport
Created in red bone marrow
Pieces of megakaryocytes
Agranulocytes
Granulocytes
Neutrophil
Eosinphil
Basophil
Lymphocytes
Monocyte
"Pinched" shape increases surface area
Lose nucleus & some organelles
gap junctions
fascia adherens
Serous Pericardium
Fibrous Pericardium
Visceral Pericardium / epicardium
Parietal Pericardium
Myocardium
Endocardium
Epicardium
Outer membrane, "Upon Heart"
Inner membrane, covers valves
Cardiac muscle
t-tubules
sarcoplastmic reticulum
intercalated discs
located between myofibrils
desmosome-like structures
where electrical signals are passed from cell to cell
dense irregular C.T.
runs from diaphragm to roots of large vessels
keeps heart in place
Pericardial Cavity
space between layers of serous pericardium, filled with serous fluid
Sinoatrial Node (SA)
Atrioventricular Node (AV)
uses gap junctions to cause atria to contract
generates electrical signal
the "pacemaker"
delays signal while ventricles fill with blood
tracing nerve impulses
AV node
bundle of His
Bundle branches
Purkinje fibers
Left Atrioventricular Valve / Tricuspid
Aortic Semilunar Valve
Pulmonary Semilunar Valve
RIght Atrioventricular Valve / Bicuspid / Mitral
moves blood from left atrium to left ventricle
moves blood from right atrium to right ventricle
moves blood from left ventricle to the ascending aorta
moves blood from right ventricle to the pulmonary trunk
3 cusps
3 cusps
chordae tendineae
chordae tendineae
second heart sound
second heart sound
first heart sound
first heart sound
Locations
Most common
Least Leaky
Lungs
Smooth Muscle
Skin
Skeletal Muscle
Has pores
More leaky than continuous
High rates of exchange
have the most elastic fibers
recoil of elastic fibers propels blood forward
move large amounts of blood
examples: aorta, large aortic branches
Smallest
1-2 layers of smooth muscle
can change diameter to regulate blood flow
takes blood to organs / parts of organs
changes diameter to regulate blood flow
more muscle than other arteries their size
CNS
Locations
endocrine glands
choroid plexus
small intestines
kidneys
Most leaky
large pores/clefts/sinusoids
large and winding
can exchange whole cells and proteins
exchange vessels
have endothelium
absent in cornea, lens & cartilage
Locations
Liver
Red bone marrow
Spleen
Smallest veins
much like capillaries
1-2 layers of smooth muscle
me exchange of materials
have valves
fewer elastic fibers than arteries
Proteins
Globulin
Fibrinogen
Albumin
helps keep water in vessels
helps in the transport of hydrophobic materials; antibodies
involved in blood clotting
components
ions
sugar
hormones
vitamins
lipids
amino acids
nutrients