CH 2 Cariovascular Physiology: Function

Question 1

Deoxygenated blood flows from the Inferior and Superior Vena Cavae in to Right Atrium, Through the tricuspid valve into the Right Ventricle through the Pulmonic Valve

Answer 1

First Component of blood flow

Question 2

from the pulmonic vale into the Pulmonary Arteries, into the lungs , through the pulmonary alveolar-capillary network, into the pulmonary veins

Answer 2

Second Component Blood Flow

Question 3

From the pulmonary veins into the left atrium, through the mitral valve, into the left ventricle, through the aortic valve and out to the rest of the body

Answer 3

Third and final component of blood flow

Question 4

The actual time sequence between ventricular relaxation

Answer 4

Cardiac Cycle

Question 5

Is consistent with the simultaneous contraction of the ventricles

Answer 5

Systole, or Ventricular Systole

Question 6

Is synonymous with ventricular relaxation

Answer 6

diastole

Question 6

The number of contractions, or beats, per minute of the heart

Answer 6

Heart Rate

Question 7

The volume of blood pumped out of one ventricle of the heart in a single beat or contraction

Answer 7

Stroke Volume

Question 9

The amount of blood pumped by the left ventricle in 1 min

Answer 9

Cardiac Output

Question 10

The pressure in the ventricles at the end of diastole

Answer 10

Preload

Question 11

The resistance against which the heart must pump

Answer 11

Afterload

Question 12

The more the myocardial fibers are stretched, up to a certain point, the more forceful the substance contraction will be

Answer 12

Starling’s Law of the Heart

Question 13

The amount of opposition to blood flow offered by the arterioles

Answer 13

Peripheral Vascular Resistance (PVR)

Question 14

Regulates functions of the body that are involuntary, or not under conscious control

Answer 14

Autonomic Nervous System (ANS)

Question 15

Responsible for preparation of the body for physical activity ( Fight or Flight)

Answer 15

Sympathetic Nervous System

Question 16

Regulates the calmer functions ( rest and digest )

Answer 16

Parasympathetic Nervous System

Question 17

The chemical neurotransmitter for the sympathetic nervous system

Answer 17

Norepinephrine

Question 18

The chemical neurotransmitter for the parasympathetic nervous system

Answer 18

Acetylcholine

Question 19

Of or pertaining to the sympathetic nerve fibers of the autonomic nervous system that use epinephrine or epinephrine-like (norepinephrine) substances as neurotransmitters

Answer 19

Adrenergic

Question 20

reactive site on the cell surface or within the cell that combines with a drug molecule to produce a physiological effect

Answer 20

Receptor

Question 21

Of or pertaining to the parasympathetic nerve fibers of the autonomic nervous system that use acetylcholine as the neurotransmitter

Answer 21

Cholinergic