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Q. True or False. A nucleus is absent from human red blood cells.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. State two ways in which red blood cells differ from typical body cells e.g. from the cheek lining.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Name a group of white blood cells, other than lymphocytes.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. State a precise location in the human body at which red blood cells are made.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Cardiac muscle may be described as a contractile tissue. Explain the meaning of the underlined term.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. True or False. The sino-atrial node (pacemaker) is located on the right side of the heart.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. What is the role of the SA (sinoatrial) and AV (atrioventricular) nodes in the heart?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Give any two functions of the lymphatic system.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Mention two ways to maintain a healthy heart.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Name the blood vessels that supply the heart cells with blood.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. What causes the sound of a heartbeat?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Name the structure in the heart that controls the heartbeat.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Some people may have the blood group B Positive (B+).What factor is present in their blood that makes it positive?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Where in the body are white blood cells produced?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Blood is made up of plasma and blood cells. What is plasma?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Where is the pacemaker located in the heart?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. What is the function of white blood cells?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Give the precise location of the SA node in the heart.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. What is the role of valves in the heart?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Name the blood vessel that brings blood from the heart to the body.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Give two factors which cause an increase in heart rate.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Give the precise locations of the AV node in the heart.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. What structure(s) protects the heart?
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2
Q. Name the valve between the upper and lower chambers on the left-hand side.
Aorta
Can shorten
Exercise; Anxiety; Drugs; Infection
Eat less fat; Exercise regularly; Avoid excess stress; Eat less
salt; Don’t smoke
Coronary or Cardiac arteries
Prevent backflow of blood
Returns fluid to blood; Transport; Lymphocytes
(Immunity)
Rhesus
Valves closing
Right atrium wall
Rib cage
TRUE
Bicuspid (mitral) valve
Bone marrow
Phagocytic (white cells); Monocytes
Causes contraction of heart muscle; Impulse generation;
Pacemaker
In septum; Near tricuspid valve; Between atrium and ventricle
Fight disease
FALSE
Marrow of long bones
Pacemaker
Liquid part of blood
No nucleus; Haemoglobin; Shape; Size; No mitochondria;
Carries O2 or CO2