Bio 125~Chapter 10

Which of the following disorders is described as: damage to motor nerves innervating skeletal muscle; skeletal muscles weaken; death usually results 5 years of diagnosis?

Amyotrophic lateral sclerosis

Carbaminohemoglobin differs from hemoglobin in that carbaminohemoglobin is?

Bound to carbon dioxide

Burning of carbon based fuels can produce what, an odorless gas that competes with oxygen for binding to hemoglobin?

Carbon monoxide

Air in the airways that does not participate in gas exchange is known as?

Dead space volume

During exhalation, the pressure inside the lungs?

Initially is higher than atmospheric pressure, but drops as the air leaves the body

When air leaves the pharynx, it enters the?

Larynx

The respiratory control center is located in?

Medulla Oblongata

As air moves through the nasal cavity, it is humidified by?

Mucus

Most of the carbon dioxide released by cells is transported in the venous supply in what form

Soluble bicarbonate ion

External respiration is the process of?

The exchange of gasses between inhaled air and blood

A small amount of fluid is contained in the plural cavity to function?

The fluid reduces friction between the plural membranes as the lungs and chest wall move during breathing

A condition is which wheezing occurs with breathlessness, a persistent cough, and yields yellowish or greenish phlegm is?

Bronchitis

During puberty, the increased production of testosterone in males causes the rapid in enlargement of which of the following structures of the respiratory system?

Larynx

Which of the following results from the stimulation by nerve impulses generated in the respiratory center when they arrive at the muscles involved in inspiration?

Contraction of he diaphragm

Oxygen rich blood flows through the heart via?

Pulmonary vein

The process of breathing requires the coordinated efforts of the?

Respiratory system, circulatory system, bones, and muscles

Breast feeding has been shown to have no effect on causing breasts to sag later in like, however what does contribute to sagging.

Smoking

An increase in the amount of carbon dioxide in the body will cause?

A decrease in the pH of cerebrospinal fluid

Physicians recommended that people breathe through their nose instead of their mouse. What occurs as air is drawn through the nose?

Air is warmed and filtered

Bronchioles differ from bronchi in that bronchioles lack?

Cartilage

This muscle separates the thoracic cavity from the abdominal cavity?

Diaphragm

During the ingestion of food or liquid, the what tips to block the opening to the trachea?

Epiglottis

In which of the following situations is hemoglobin most likely to bind with oxygen?

In a tissue with natural pH

Which of the following is a symptom of botulism?

Paralysis of muscle used for breathing, difficulty swallowing or speaking, double vision, nausea, and vomiting

Arrange in order all the parts that air contracts as it is drawn into the body...

Pharynx, larynx, trachea, bronchioles, alveoli

During inspiration, intercostal muscles function to?

The intercostal muscles contract, pulling the ribs upward and outward

Ventilation refers to the process by which?

The movement of air in and out of the lungs

During a cough, which is responsible for constructing the size of the trachea?

The rings of the cartilage that makes up the trachea