Chapter 14

Descrição

Chapter 14 quiz
Rachel Calver
Quiz por Rachel Calver, atualizado more than 1 year ago
Rachel Calver
Criado por Rachel Calver mais de 8 anos atrás
13
0

Resumo de Recurso

Questão 1

Questão
What are the atria?
Responda
  • 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

Questão 2

Questão
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])
Responda
  • right atrium
  • right ventricle
  • pulmonary artery

Questão 3

Questão
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.
Responda
  • superior vena cava
  • inferior vena cava
  • coronary sinus blood

Questão 4

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

Questão 5

Questão
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.
Responda
  • left atrium
  • pulmonary veins
  • left ventricle
  • valve
  • aorta

Questão 6

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

Questão 7

Questão
A pacemaker is located where?
Responda
  • Rear wall of right atrium
  • Rear wall of left atrium
  • Rear wall of right ventricle
  • Rear wall of left ventricle

Questão 8

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

Questão 9

Questão
Ventricular contraction begins:
Responda
  • 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

Questão 10

Questão
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].
Responda
  • systole
  • diastole
  • diastole
  • systole

Questão 11

Questão
Which is the transmitter for the parasympathetic system?
Responda
  • Acetylcholine
  • Norepinephrine
  • Baroreceptors
  • Vagus

Questão 12

Questão
What is the transmitter for the sympathetic system?
Responda
  • Acetylcholine
  • Nerepinephrine
  • Baroreceptor
  • Vagus

Questão 13

Questão
Vagal inhibition of the SA node normally increases HR
Responda
  • True
  • False

Questão 14

Questão
Vagal withdrawal may increase HR
Responda
  • True
  • False

Questão 15

Questão
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.
Responda
  • increases
  • decreases
  • increase
  • decrease
  • increased
  • decreased
  • increase
  • decrease
  • increase
  • decrease

Questão 16

Questão
Baroreceptors are located in the carotid sinus in the neck.
Responda
  • True
  • False

Questão 17

Questão
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).
Responda
  • carotid sinus
  • decreased
  • increased
  • acceleration
  • deceleration
  • medulla
  • increases
  • decreases
  • cardiac output

Questão 18

Questão
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]
Responda
  • arrhythmia
  • sympathetic
  • sinoatrial node
  • breathing

Questão 19

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

Questão 20

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

Questão 21

Questão
The R wave is the most prominent component of the QRS component.
Responda
  • True
  • False

Questão 22

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

Questão 23

Questão
Lead 1 is placed:
Responda
  • Right arm, left arm
  • Right arm, left leg
  • Left arm, left leg
  • Left arm, right leg

Questão 24

Questão
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.
Responda
  • positive
  • negative
  • upward
  • downward

Questão 25

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

Questão 26

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

Questão 27

Questão
How many chest electrodes are there?
Responda
  • 5
  • 6
  • 7
  • 8

Questão 28

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

Questão 29

Questão
RSA is considered a marker for vagal control.
Responda
  • True
  • False

Questão 30

Questão
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
Responda
  • increase
  • decrease
  • cognitive
  • perceptual

Questão 31

Questão
Cardiac deceleration facilitates stimulus “rejection” whereas cardiac acceleration facilitates stimulus “intake”.
Responda
  • True
  • False

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