Cosmetology: Circulatory System
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What are the functions of the circulatory system?
Controls the circulation of blood and lymph through the body.
What are the subsystems of the circulatory system and what does each subsystem do?
- Cardiovascular- circulates blood, includes the heart, arteries, veins and capillaries.
- Lymph Vascular- circulates lymph through lymph glands, nodes and vessels.
What is the heart?
a cone-shaped muscular organ located in the chest cavity, has four chambers, normally about the size of a closed fist.
What are the four chambers of the heart and where are the chambers located?
- Right Atrium: Right upper chamber.
- Left Atrium: Left upper chamber.
- Right Ventricle: Right lower chamber.
- Left Ventricl: Left lower chamber.
What is the average heartbeat?
60-80 times per minute.
What is blood?
The sticky, salty fluid that circulates through the body bringing nourishment and oxygen to all body parts and carries toxins and waste products to the liver and kidneys to be eliminated.
What are the erythrocytes?
Red blood cells.
What is hemoglobin?
Protein in blood that attracts oxygen.
What is oxygenation?
the process when hemoglobin attracts oxygen (how blood gets oxygen).
What are leukocytes?
White blood cells.
What are thrombocytes?
Blood platelets (responsible for clotting blood).
What is plasma?
the fluid part of blood in which red and white blood cells and blood platelets are suspended: 90% water.
What are arteries?
tubular, elastic, THICK walled branching vessels that carry PURE blood from the heart through the body.
What are veins?
tubular, elastic, THIN walled branching vessels that carry blood from the capillaries to the heart.
What are capillaries?
small vessels that take nutrients and oxygen from the arteries to the cells and take waste products from the cells to the veins.
What is systemic or general circulation?
the entire process of blood traveling from the heart through the body and back to the heart.
What is pulmonary circulation?
when blood travels to the lungs (through the pulmonary artery) to become oxygenated.
In which chamber of the heart does oxygen-poor blood enter and through which vessel does it enter the heart?
- Right Atrium.
- Superior Vena Cava.
What supplies blood to the head, face and neck?
Common Carotid Arteries.
What supplies blood to the brain, eyes and forehead?
Internal Carotid Artery.
What supplies blood to the skin and muscles of the head?
External Carotid Artery.
Through which two vessels does blood from the head, neck and face return?
Internal and External Jugular veins.
The External Carotid Artery branches into smaller arteries, which one supplies blood to the back of the head and crown?
What supplies blood to the scalp above and behind the ear?
What supplies blood to the top of the head and branches down further to smaller arteries?
What is the external maxillary?
supplies blood to the lower portion of the face.
What is the submental artery?
supplies blood to the chin and lower lip.
What is the inferior labial?
supplies blood to the lower lip.
What is the angular artery?
supplies blood to the side of the nose.
What is the superior labial?
supplies blood to the upper lip and septum.
What is the frontal artery?
supplies blood to the forehead.
What is the parietal artery?
supplies blood to the crown and sides of the head.
What is the middle temporal?
supplies blood to the temples.
What is the transverse artery?
supplies blood to the massetar.
What is the anterior auricular?
supplies blood to the anterior part of the ear.
What is the Supra-Orbital Artery?
supplies blood to parts of the forehead and eyes.
What are the two functions of the lymph-vascular system?
- Nourishes parts of the body not reached by blood.
- Picks up fluids and plasma protein that have leaked out of the system and returns them to the cardiovascular system.
What is another term for the left and right atrium?
Left and Right Auricle.
Through which valve is blood pumped into so it can enter the right ventricle?
What is the name of the artery blood travels through to get to the lungs and become oxygenated?
Through which vessel does oxygenated blood return to the heart and which chamber does it enter?
- Pulmonary Vein.
- Left Atrium.
When blood leaves the left atrium, which valve does is pass through and which chamber of the heart does it enter?
- Bicuspid/Mitral Valve.
- Left Ventricle.
What is the name of the vessel that supplies oxygenated blood to the rest of the body from the left ventricle?
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