BIO 150 EXAM 2

when air entering the respiratory tract leaves the pharynx, it next enters the

Larynx

if an individual is o+ which of the following antigens are on the surface of his or her red blood cells

Rh

the pacemaker of the heart is the

SA Node

which major digestive process involves nutrient molecules passing across the mucosal layer of the gastrointestinal tract into the blood or lymph

absorption

where in the lungs does the co2 and o2 exchange take place

alveoli

which one best describes an angiogram

an x-ray picture of blood vessels

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

bronchitis

ventricular fibrillation is occurring in a patient who has just arrived in the emergency room, which one of the following treatments may be applied immediately to correct this potentially fatal arrhythmia

cardio version

arthrosclerosis is a condition that results in a thickening of arterial walls due to buildup of fatty deposits containing

cholesterol

the pancreatic ducts connect to the small intestine at the

duodenum

erythropoietin is a hormone secreted by the spleen that results in an increased production of red blood cells

false

during exhalation the pressure inside the lungs

initially higher than atmospheric pressure but drops as air leaves the body

the respiratory control center is located

medulla oblongata

which one of the following populations of cells is most markedly increased during bacterial infections

neutrophils

blood pressure in the veins is lower than in arteries, and a series of _ are necessary to prevent back flow of blood

one-way valves

the salivary glands include

parotid, submandibular, sublingual

type of muscle movement in the digestive system to move food is called

peristalsis

which of the following is a penetrating wound resulting in collapse of the lung

pneumothorax

these structures serve as gates that regulate blood flow from arterioles into capillaries

pre capillary sphincters

pepsin is an enzyme that acts on

proteins

after blood flows through the right atrium of the heart, its next major destination is the

right ventricle

movement of stimulus that causes a hear contraction

sinoatrial node- atria- atrioventricular node- atrioventricular bundle- purkinje fibers- ventricles

majority of nutrients are absorbed here

small intestine

amylase is an enzyme that breaks down

starch

lung diseases, such as emphysema can be diagnosed by measuring lung volumes and the rates at which these volumes change

true

the cardiac cycle consists of a period of heart contraction called systole and a period of heart relaxation called diastole

true

the rate and depth of normal breathing are controlled by the need to get rid of co2

true

unlike red blood cells, white blood cells are capable of leaving blood vessels to enter the tissue fluid between cells

true

in which one of the following blood vessels is blood under the lowest pressure

veins