Ch. 6: General Anatomy & Physiology Flashcards Preview

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Flashcards in Ch. 6: General Anatomy & Physiology Deck (255)
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181

Define: Systemic or General Circulation

Carries the oxygenated blood from the heart throughout the body and back to the heart again.

182

What are Blood Vessels?

Tube-like structures that include the arteries, arterioles, capillaries, venules, and veins.

183

Name the Blood Vessel:

* Thick-walled, muscular, flexible tubes that carry oxygenated blood away from the heart to the arterioles.

Arteries

184

What is the largest artery in the body?

Aorta

185

Name the Blood Vessel:

* Small arteries that deliver blood to capillaries.

Arterioles

186

Name the Blood Vessel:

* Tiny, thin-walled blood vessels that connect the smaller arteries to venules. Brings nutrients to the cells and carries any waste materials.

Capillaries

187

Name the Blood Vessel:

* Small vessels that connect the capillaries to the veins. They collect blood from the capillaries and drain it into the veins.

Venules

188

Name the Blood Vessel:

Thin-walled blood vessels that are less elastic than arteries. They contain cup-like valves that keep blood flowing in one direction to the heart and prevent the blood from flowing backwards.

Veins

189

Define: Blood

Is a nutritive fluid circulating through the circulatory system and is considered connective tissue.

190

What causes blood to change color?

The color change occurs during the exchange of carbon dioxide for oxygen as the blood passes through the lungs, and the exchange of oxygen for carbon dioxide as the blood circulates through the body.

191

About how much blood is in the human body?

8-10 Pints (3.8 - 4.7 liters)

192

Blood is approximately __% Water.

83%

193

What are the critical functions of blood. Name at least two.

* Carries water, oxygen, food, and secretions to all cells of the body.
* Carries away carbon dioxide and waste products to be eliminated through the lungs, skin, kidneys, and large intestine.
* Helps to equalize the body's temperature.
* White blood cells aids in protecting the body from harmful bacteria and infections.
* Closes injured minute blood vessels by forming clots; prevents blood loss.

194

What is produced in the red bone marrow and contains hemoglobin?

Red Blood Cells
(Erythrocytes)

195

What is Hemoglobin?

A complex iron protein that gives blood its bright red color.

196

What is the function of Red Blood Cells?

To carry oxygen to the body cells.

197

What type of blood cell performs the function of destroying disease causing germs?

White Blood Cells
(Leukocytes)

198

What contributes to the blood-clotting process? They are much smaller than red blood cells.

Platelets
(Thrombocytes)

199

Define: Plasma

The fluid part of the blood in which the red and white blood cells and platelets flow. Is about 90% water and contains proteins, sugars, and oxygen.

200

What is the main function of Plasma?

To carry food and secretions to the cells and to take carbon dioxide away from the cells.

201

What is the Common Carotid Artery?

The main source of blood supply to the head, face, and neck. Located on either side of the neck, and each one is divided into an Internal and External branch.

202

Describe both the Internal and External Carotid Artery.

* Internal Carotid Artery supplies blood to the brain, eyes, eyelids, forehead, nose, and internal ear.
* External Carotid Artery supplies blood to anterior (front) parts of the scalp, ear, face, neck, and side of head

203

What type of artery supplies blood to the lower region of the face, mouth, and nose.

Facial Artery / External Maxillary Artery

204

Name the External Maxillary Artery:

* Supplies blood to the chin and lower lip.

Submental Artery

205

Name the External Maxillary Artery:

* Supplies blood to the lower lip.

Inferior Labial Artery

206

Name the External Maxillary Artery:

* Supplies blood to the side of the nose.

Angular Artery

207

Name the External Maxillary Artery:

* Supplies blood to the upper lip and region of the nose.

Superior Labial Artery

208

What type of artery supplies blood to the muscles of the front, side, and top of the head?

Superficial Temporal Artery

209

Name the External Temporal Artery:

* Supplies blood to the forehead and upper eyelid. Branches of Supraorbital Artery.

Frontal Artery

210

Name the External Temporal Artery:

* Supplies blood to the side and crown of the head.

Parietal Artery