Med Skills 7:8-7:10

A common symptom of a myocardial infarction is a severe, crushing pain that radiates to the arm, neck, and jaw.

True

A new strain of tuberculosis that is resistant to drug therapy has created concern that tuberculosis will become a widespread infectious disease.

True

Alveoli are made of one layer of squamous epithelial tissue and contain a rich network of blood capillaries.

True

An embolus is a foreign substance circulating in the bloodstream.

True

Angioplasty may be used to remove or compress deposits in arteries, or to insert a stent to allow blood flow.

True

Aplastic anemia is a result of injury to or destruction of the bone marrow.

True

Arrhythmias are abnormal heart rhythms and can be mild to life threatening.

True

Asthma, bronchitis, emphysema, and tuberculosis can lead to chronic obstructive pulmonary disease.

True

Capillaries allow oxygen and nutrients to pass through to body cells.

True

Capillaries have thin walls containing only one layer of cells.

True

Electrical impulses originating in the heart cause the cyclic contraction of the muscles.

True

Even though the heart weighs less than one pound, it pumps approximately 2,000 gallons of blood through the body each day.

True

Fibrinogen and prothrombin are blood proteins necessary for the clotting of blood.

True

Hemoglobin carries both oxygen and carbon dioxide.

True

If hypertension is not treated, it can cause permanent damage to the heart, blood vessels, and kidneys.

True

Naso-lacrimal ducts drain tears from the eye into the nose to provide moisture for the air entering the body.

True

Pneumonia is an inflammation or infection of the lungs characterized by exudate in the alveoli.

True

Sickle cell anemia is a chronic, inherited anemia that occurs almost exclusively among African Americans.

True

The inner surfaces of alveoli are covered with a lipid substance called surfactant to help prevent them from collapsing.

True

The largest layer of cartilage on the larynx, the thyroid cartilage, is commonly called the Adam's apple.

True

The movement of the electrical impulse in the heart can be used to detect abnormal activity or disease.

True

The nasal cavities are lined with a mucous membrane and have a rich blood supply.

True

The nasal septum divides the nose into two hollow spaces called nasal cavities.

True

The process of respiration is controlled by the respiratory center in the medulla oblongata of the brain.

True

The smallest branches of arteries are called arterioles.

True

Most upper respiratory infections are caused by bacteria and are highly contagious.

False

Neutrophils, monocytes, thrombocytes, and lymphocytes are all different types of leukocytes.

False

Phagocytosis is a process by which erythrocytes destroy pathogens or germs.

False

Plasma is approximately 75 percent water with many suspended substances.

False

The body has a six- to ten-minute supply of oxygen.

False

The double-layered membrane that covers the outside of the heart is the endocardium.

False

The left lung has three lobes, while the right lung has two lobes.

False

The lower part of the septum is called the interatrial septum

False

The parietal pleura is attached to the surface of the lung.

False

The period of ventricular contraction in the heart is called diastole.

False

To stop a nosebleed, compress the nostrils and tilt the head backward.

False

The chamber of the heart that receives deoxygenated blood as it returns from body cells is the ____.

right atrium

The muscle layer of the heart is the ____.

myocardium

A series of C-shaped cartilages, open on the ventral, or front surface, help keep the trachea open.

False

A thoracentesis is the insertion of a tube into the trachea to aid breathing.

False

An increased amount of carbon dioxide in the blood causes a decrease in the rate of respiration.

False

Another name for influenza or flu is rhinitis.

False

Arteriosclerosis is a ballooning out of, or saclike formation on, an artery wall.

False

During diastole, the atria are filling with blood and the ventricles contract.

False

During expiration, the diaphragm and the intercostal muscles contract.

False

Fixed pacemakers deliver electrical impulses only when the heart's own conduction system is not responding correctly.

False

Hypotension is high blood pressure.

False

Leukemia is a malignant disease of the blood vessels that destroys white blood cells.

False

The chamber of the heart that receives oxygenated blood as it returns from the lungs is the ____.

left ventricle