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Paracrine Factor

a chemical signal released in an organ that effects cells in the same organ

Cytokin

paracrine factor produced by the immune system

Atheromas

a formation of many plaques in the arteries

Ischemia

lack of blood flow and consequently oxygen to a tissue

Embolus

a moving blood clot

Thrombus

a stationary blood clot

Coronary infarction

death of part of the myocardium

Hemostasis

stopping of bleeding

Petechiae

Little red dot on skin caused by ruptured capillary

Antigonadotropic

causes decrease in amount of LH and FSH

Circadian Rhythm

A rhythm of activity cycles

Photo Period

length of daylight and darkness

Perforin

a chemical that perforates the plasma membrane of a bad cell, released by T-cell

Thymopoeitin

important in the maturation of T-cells

Motor Unit

Each somatic motor neuron and all muscle fibers it innervates

Sarcolema

Plasma membrane of muscle fiber

Bradycardia

Heart rate less than 60 BPM

Tachycardia

Heart rate greater than 100 BPM

Recruitment

The way to generate different tensions in muscle fibers

Innervation Ratio

The amount of muscle fibers innervated by the number of neurons

Summation

Stimulating a muscle to twitch then before it relaxes stimulate it again

Tetanus

When the muscle remains contracted

Eversion

The back flow of blood

Chordae tendinae and Papillary Muscles

Eversion prevented by?

End Systolic Volume

When the ventricles don't pump out all blood, about 45mL

Stroke Volume

The amount of blood during the ejection phase

Heart Murmur

A damaged valve

Mitral stenosis

when the mitral valves become thickened and calcified

incompetent

valves that do not close

Myocyte

another term for a cardiac muscle cell

Ectopic pacemaker

a pacemaker other than the SA node

Sinnus tachycardia

a normal type of tachycardia

Athletes arrhythmia's

normal bradycardia if you are an athlete

Flutter

Heart rate is fast, 200 to 300 BPM, coordinated, can pump blood

Fibrillation

When the chamber of the heart quivers, AP occurring in different parts of the myocardium

AV node block

result of damage to the AV node

Metarteriole

A way for the blood to bypass the capillary bed, connects another ateriole to a venule

Continuous and Fenostrated

Two types of capillaries

Return excess tissue fluid

Major function of the lymphatic system

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