Chapter 14

Descripción

Chapter 14 quiz
Rachel Calver
Test por Rachel Calver, actualizado hace más de 1 año
Rachel Calver
Creado por Rachel Calver hace más de 8 años
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Resumen del Recurso

Pregunta 1

Pregunta
What are the atria?
Respuesta
  • Receiving chambers for blood that has been returned to the heart by the veins
  • The part of the heart which recieves blood from all body tissues except the lungs
  • They pump blood via arteries to the lungs
  • They are sections of the heart which carry oxygenated blood

Pregunta 2

Pregunta
The blood flows from the [blank_start]right atrium[blank_end] to the [blank_start]right ventricle[blank_end] and from there to the lungs (via the [blank_start]pulmonary artery[blank_end])
Respuesta
  • right atrium
  • right ventricle
  • pulmonary artery

Pregunta 3

Pregunta
The [blank_start]superior vena cava[blank_end] (from from the upper body), the [blank_start]inferior vena cava[blank_end] (blood from the lower body) and the [blank_start]coronary sinus blood[blank_end] (blood from the heart itself) are the veins that bring blood to the right atrium.
Respuesta
  • superior vena cava
  • inferior vena cava
  • coronary sinus blood

Pregunta 4

Pregunta
In the lungs, [blank_start]carbon dioxide[blank_end] is removed from the blood and [blank_start]oxygen[blank_end] is added.
Respuesta
  • carbon dioxide
  • oxygen

Pregunta 5

Pregunta
Oxygenated blood is returned to the [blank_start]left atrium[blank_end] by four [blank_start]pulmonary veins[blank_end], and from there it goes to the [blank_start]left ventricle[blank_end] ([blank_start]valve[blank_end] stops return), which then pumps the oxygenated blood through the [blank_start]aorta[blank_end] to the rest of the body.
Respuesta
  • left atrium
  • pulmonary veins
  • left ventricle
  • valve
  • aorta

Pregunta 6

Pregunta
The human heart normally contracts at a rate of about how many beats per minute?
Respuesta
  • 56
  • 72
  • 83
  • 102

Pregunta 7

Pregunta
A pacemaker is located where?
Respuesta
  • Rear wall of right atrium
  • Rear wall of left atrium
  • Rear wall of right ventricle
  • Rear wall of left ventricle

Pregunta 8

Pregunta
A pacemaker has a regular electrical discharge which produces the normal rhythmic contraction of the entire heart, at how many BPM by itself?
Respuesta
  • 72
  • 83
  • 104
  • 120

Pregunta 9

Pregunta
Ventricular contraction begins:
Respuesta
  • Shortly after Q wave
  • Shortly after R wave
  • Just before the Q wave
  • Just before the R wave
  • Shortly after the S wave
  • Just before the S wave
  • Shortly after the T wave
  • Just before the T wave

Pregunta 10

Pregunta
The contraction phase of the heart is known as [blank_start]systole[blank_end], whereas the relaxation phase is termed [blank_start]diastole[blank_end].
Respuesta
  • systole
  • diastole
  • diastole
  • systole

Pregunta 11

Pregunta
Which is the transmitter for the parasympathetic system?
Respuesta
  • Acetylcholine
  • Norepinephrine
  • Baroreceptors
  • Vagus

Pregunta 12

Pregunta
What is the transmitter for the sympathetic system?
Respuesta
  • Acetylcholine
  • Nerepinephrine
  • Baroreceptor
  • Vagus

Pregunta 13

Pregunta
Vagal inhibition of the SA node normally increases HR
Respuesta
  • True
  • False

Pregunta 14

Pregunta
Vagal withdrawal may increase HR
Respuesta
  • True
  • False

Pregunta 15

Pregunta
HR output [blank_start]increases[blank_end] via the [blank_start]increase[blank_end] in rate of S-A node discharge, the [blank_start]increased[blank_end] in excitability of cardiac tissue, and the [blank_start]increase[blank_end] in contraction force (atrial & ventricular). The SNS also acts to [blank_start]increase[blank_end] cardiac output in certain emotional situations or at extreme levels of exercise.
Respuesta
  • increases
  • decreases
  • increase
  • decrease
  • increased
  • decreased
  • increase
  • decrease
  • increase
  • decrease

Pregunta 16

Pregunta
Baroreceptors are located in the carotid sinus in the neck.
Respuesta
  • True
  • False

Pregunta 17

Pregunta
When pressure on the walls of the [blank_start]carotid sinus[blank_end] is low because of [blank_start]decreased[blank_end] blood pressure, this information is transmitted to a cardiac [blank_start]acceleration[blank_end] center in the [blank_start]medulla[blank_end]. SNS [blank_start]increases[blank_end] cardiac output in response are present in the carotid sinus ([blank_start]cardiac output[blank_end] refers to the amount of blood pumped by the heart).
Respuesta
  • carotid sinus
  • decreased
  • increased
  • acceleration
  • deceleration
  • medulla
  • increases
  • decreases
  • cardiac output

Pregunta 18

Pregunta
RSA is the natural cycle of [blank_start]arrhythmia[blank_end] that occurs through the influence of [blank_start]breathing[blank_end] on the flow of [blank_start]sympathetic[blank_end] and vagal impulses to the [blank_start]sinoatrial node[blank_end]
Respuesta
  • arrhythmia
  • sympathetic
  • sinoatrial node
  • breathing

Pregunta 19

Pregunta
R-R interval is [blank_start]shortened[blank_end] during inspiration and [blank_start]prolonged[blank_end] during expiration.
Respuesta
  • shortened
  • lengthened
  • prolonged
  • reduced

Pregunta 20

Pregunta
The relatively small ______ wave is produced by electrical currents generated just before contraction of the atria.
Respuesta
  • P
  • T
  • S
  • Q
  • R

Pregunta 21

Pregunta
The R wave is the most prominent component of the QRS component.
Respuesta
  • True
  • False

Pregunta 22

Pregunta
The T wave is caused by re-polarisation of the?
Respuesta
  • Ventricles
  • Atrium
  • Aorta
  • Carotid sinus

Pregunta 23

Pregunta
Lead 1 is placed:
Respuesta
  • Right arm, left arm
  • Right arm, left leg
  • Left arm, left leg
  • Left arm, right leg

Pregunta 24

Pregunta
For lead 1, The polarity is selected so that when the left arm lead is [blank_start]positive[blank_end], with respect to the right, there is an [blank_start]upward[blank_end] deflection of the P and R segments of the ECG.
Respuesta
  • positive
  • negative
  • upward
  • downward

Pregunta 25

Pregunta
Lead II is attached to:
Respuesta
  • Right arm, left arm
  • Right arm, left leg
  • Left arm, Left leg
  • Its just not attached

Pregunta 26

Pregunta
Lead III is attached to:
Respuesta
  • Right arm, left arm
  • Right arm, left leg
  • Left arm, left leg
  • There is no lead III

Pregunta 27

Pregunta
How many chest electrodes are there?
Respuesta
  • 5
  • 6
  • 7
  • 8

Pregunta 28

Pregunta
The frequency of RSA has a range of:
Respuesta
  • 0.15-0.4 Hz
  • 0.4-0.6 Hz
  • 0.25-0.5 Hz
  • None of the above

Pregunta 29

Pregunta
RSA is considered a marker for vagal control.
Respuesta
  • True
  • False

Pregunta 30

Pregunta
In [blank_start]cognitive[blank_end] activities, HR [blank_start]increase[blank_end] and SCL increase; in [blank_start]perceptual[blank_end] activities, HR [blank_start]decrease[blank_end] and SCL increase
Respuesta
  • increase
  • decrease
  • cognitive
  • perceptual

Pregunta 31

Pregunta
Cardiac deceleration facilitates stimulus “rejection” whereas cardiac acceleration facilitates stimulus “intake”.
Respuesta
  • True
  • False
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