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Circulatory
Circulatory system
33
Anatomy
10th Grade
11/07/2016

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Term
Vasodilation
Definition
Widens blood vessels and decreases pressure
Term
Vasoconstruction
Definition
Narrows blood vessels. Increase Blood Pressure
Term
Hypertension
Definition
Blood pressure too high. Cause damage to circulatory system and organs
Term
Hypotension
Definition
Blood pressure too low. Cause fainting
Term
Blood
Definition
Connective tissue. Contains many substances like oxygen and glucose. Contains red and White blood cells, platelets, and it's suspended in plasma
Term
Plasma
Definition
Extracellular Matrix. exchanges water and dissolved materials with fluid that surrounds body cells.
Term
Red Blood Cells
Definition
Exchange oxygen and carbon dioxide. comes from stem cells in red marrow.
Term
Hemoglobin
Definition
Protein that transports oxygen
Term
White Blood Cells
Definition
Defend the body. In red Marrow. some goes to blood some does to lymphatic system
Term
Blood Typing
Definition
Comes from carbohydrates and other molecules on outer membrane. Antibodies attack when markers don't match
Term
Agglutination
Definition
Reaction where cells clump together
Term
Heart Attack
Definition

Coronary artery. Blood flow to heart is blocked (blood clot). 

Cure: bypass surgery (use other arteries to bypass clot) aspirin (inhibits platelets) angioplasty (clear with balloons)

Term
Heart Failure
Definition
Heart can keep pumps up to pace.
Term
Heart Murmur
Definition
Valve defect. not enough blood flow to the heart.
Term
Brugada Syndrome
Definition
Genetic. affects AV and SA nodes causes irregular heartbeat.
Term
Platelets
Definition
Small colorless cell fragments. Clotting (clump of solid blood)
Term
Hemophilia
Definition
Inherited. Bleeding disorder, can't clot. non stop bleeding
Term
Open Circulatory System
Definition
Fluid pumped through short vessels to open spaces in body cavity. (Insects)
Term
Closed Circulatory System
Definition
Blood stays in vessels. Exchange materials with fluid outside cell body. (Vertebraes)
Term
2 Chambered Heart
Definition

1 ventricle , 1 Atrium. (Fish/ Tadpoles). 

Blood to gills, take oxygen, remove carbon dioxide, released to body. 

Term
3-4 Chambered Hearts
Definition
Divided Circulatory system.2 interconnected circuits. (Pulmonary and Systemic Circulation)
Term
Pulmonary Circulation
Definition
Heart-lungs-heart
Term
Systemic Circulation
Definition
Heart-body-heart
Term
Artery and Arteriole
Definition
Blood away from heart . Big and mini
Term
Capillary
Definition
Smallest vessel
Term
Veins and Venules
Definition
Blood to heart. Big and Mini
Term
Pericardial Sac
Definition
Heart moves freely in here
Term
Atria and Ventricle
Definition

Blood to ventricle.

Blood to lungs and body.

Term
Heart Pump
Definition

Left: pumps to body 

Right: pumps to lungs

Term
Coronary Arteries
Definition
2 vessels that branch off aorta
Term
Pacemaker (SA Node)
Definition
Set tempo of heartbeat. Stimulates Atria to contract
Term
Cardiac output
Definition
Measures blood volume per minute that heart pumps out
Term
Cardiac Cycle
Definition
Single beat of heart . Consistent with contraction and relaxation.
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