Whole blood consists of
What are platelets?
Most of the oxygen (from modified erythrocytes) is bound to the pigmented protein hemoglobin.
The 5 different types of leukocytes can be distinguished on the basis of
White blood cells are active in
Blood serves to
Plasma contains approx. _a__% proteins, __b__, ___c__, _d___ & __e____, which are dissolved or suspended in water.
What happens to the proteins, ions, nutrients, waste products & hormones contained w/in plasma?
The heart is a __a__ _a__ that sends blood to the __b_ for oxygenation through the __c__ __c__ & to the remainder of the body through the __d_ _d__.
Valves between the atria & ventricles include the tricuspid on the RIGHT SIDE of the heart & the bicuspid on the LEFT SIDE of the heart.
Circulation of blood through the heart- visualization-
Blood drains from the ____a_____ directly into the ___b__ __b__ through the ___c__ __c__.
The hearts intrinsic beat is initiated by the __a__ _a__ and transmitted along the conduction system through the __b____.
The intrinsic beat intiated by the sinoatrial node along the conduction system through the mycardium -is a wave of electrical activity & is what is measured on a
The cardiac cycle is the period from the
The contraction phase of the cycles is __a__; the relaxation phase is __b__.
The ___a_________________ are the _b__ _b__ that empty into the __c__ __c__ of the heart.
The walls of the arteries are thick & elastic, because they carry blood under high pressure.
Vasoconstriction & Vasodilation result from
The contraction & relaxation influence blood pressure & blood distribution to the tissues.
Vein walls are ___a___ & less ___b___ than those of the arteries, because they carry blood under lower pressure.
Arteries are thicker & more elastic than veins because they carry blood under high pressure.
Mechanisms that help draw venous blood back to the heart include:
Labled diagram of the heart