The Circulatory System
Human blood is a:
A. thin blue liquid
B. thin red liquid
C. thick blue liquid
D. thick red liquid
Human blood is a:
D. THICK RED LIQUID
The heart is located:
A. in front of the lungs
B. behind the lungs
C. between the lungs
D. on top of the lungs
The heart is located:
C. between the lungs
Excretion is:
A. the accumulation of waste substances
B. the elimination of waste substances
C. the retention of waste substances
D. the storage of waste substances
Excretion is:
B. the elimination of waste substances
Another name for INFLUENZA is:
A. gripo
B. Azneulfni
C. Influencer
D. Flu
Another name for INFLUENZA is:
D. Flu
The lungs eliminate:
A. H2O
B. Oxyen
C. CO2
D. Nitrogen
The lungs eliminate:
C. CO2
Red blood cells are:
A. medium size cells with a nucleus
B. larger and less numerous than white blood cells
C. small cells without a nucleus that contain hemaglobin
D. not true cells, but cytoplasm
Red blood cells are:
C. SMALL CELLS WITHOUT A NUCLEUS THAT CONTAIN HEMAGLOBIN
The heart is:
A. a fatty, dense organ located in the rib cage
B. a muscular, hollow organ located in the rib cage
C. an organ situated in the ribcage, consisting of elastic sacs
D. an internal organ responsible for digestion
The heart is:
B. a muscular, hollow organ located in the rib cage
The kidneys are:
A. two tubes that carry urine from the bladder to outside the body
B. an internal organ where the main part of digestion occurs
C. two bean-shaped organs located in the lumbar region
D. two hollow and muscular organs that are located together on the right side of the body
The kidneys are:
C. two bean-shaped organs located in the lumbar region
True or False:
Digestive illnesses also include illnesses of the mouth which could be dental cavities (tooth decay) and gingivitis.
TRUE.
A. Lungs
B. Stomach
C. Heart
D. Liver
Ventricles (or lower chambers) form part of the:
C. Heart
White blood cells are also called:
A. leucocytes
B. erythrocytes
C. haematites
D. thrombocytes
White blood cells are also called:
A. LEUCOCYTES
The cardiac cycle has:
A. four stages
B. two statges
C. ten stages
D. three stages
The cardiac cycle has:
D. three stages
Which option IS NOT true about the kidneys?
A: in a cross-section of a kidney, we can see an outer region, which is the cortex.
B. Each kidney is made up of thousands of microscopic structures called Browman's capsules.
C. Nephrons, found in the kidneys, are composed of a ball of blood capillaries (the glomerulus).
D. In a close-up of the kidneys, we can see the renal pelvis; which is a funnel-shaped cavity that collects the urine produced by the kidneys.
Which of the following is NOT true about the kidneys?
B. Each kidney is made up of thousands of microscopic structures called Browman's capsules.
Each kidney is made up of thousands of microscopic structures called NEPHRONS.
Chronic bronchitis is:
A. an illness caused by a virus. It can lead to death in elderly people and other high-risk groups. It can be prevnted by a vaccine.
B. an inflammation of the bronchi, which can even cause them to become blocked up. It can also be caused by allergies.
C. an irritation of the bronchi casued by smoking or exposure to pollutants in the air.
D. an illness in the lungs and throat and primarily affacts smokers.
Chronic bronchitis is:
C. an irritation of the bronchi casued by smoking or exposure to pollutants in the air.
Kideny disorders are:
A. not very serious for the excretory system.
B. the most serious illnesses that affect the excretory system.
C. illnesses that include renal failure, which is also known as renal calculi and often caused by poor diet.
D. mainly caused by viral or bacterial infections.
Kidney disorders are:
B. the most serious illnesses that affect the excretory system.
Arteries are:
A. also called venules
B. blood vessels with thick walls that carry the blood from the heart to other organs
C. blood vessels with thin walls that prevent blood from flowing backwards
D. microscopic blood vessels that reach all cells
Arteries are:
B. BLOOD VESSELS WITH THICK WALLS THAT CARRY THE BLOOD FROM THE HEART TO OTHER ORGANS
Ventricular systole is:
A. the first stage of the cardiac cycle when the atria are relaxed and dialated
B. the stage of the cardiac cycle when the ventricles contract and force the blood into the arteries through the semilunar valves
C. the second stage of the cardiac cycle when the atria contract and the blood flows into the ventricles
D. not a stage of the cardiac cycle but an important artery in the heart located in the lower chambers
Ventricular systole is:
B. the stage of the cardiac cycle when the ventricles contract and force the blood into the arteries through the semilunar valves
The urinary tract is made up of all of the following parts EXCEPT:
A. ureters
B. urinary medulla
C. urinary bladder
D. urethra
The urinary tract is made up of all of the following parts EXCEPT:
B. urinary medulla
Urinary medulla does not exist. However, we can find the RENAL MEDULLA in the kidneys.
Digestive illnesses:
A. are caused by unhealthy diet, viral infections, or bacterial infections.
B. include influenza, gastritis, and kidney disorders.
C. include gastroenteritis which is caused by a virus found in contaminated water and food. It can also be caused by excessive alcohol consumption or certain medications.
D. include hepatitis which is combination of an inflammation of the mucous lining in the stomach and ulcers, which are wounds usually found in the stomach or the duodenum.
Digestive illnesses:
A. are caused by unhealthy diet, viral infections, or bacterial infections.
The systemic circuit:
A. is also called the shorter circuit.
B. is the path that the blood takes between the lungs and the heart.
C. is the path the blood takes between the heart and the different organs of the body.
D. is the circuit that pumps blood through the right side of the heart.
The systemic circuit:
C. is the path the blood takes between the heart and the different organs of the body.
Which IS NOT a function of blood:
A. It transports substances. Blood transports nutrients and waste substanes throughout the body.
B. It regulates body temperature. Blood helps maintain body temperature by distributing heat throughout the body.
C. It regulates it's thickness. If we are in an accident, the blood automatically thins itself to protect us.
D. It defends the body. White blood cells form part of the body's defence mechanisms against pathogens and tumour cells.
Which is NOT a function of blood:
C. It regulates it's thickness. If we are in an accident, the blood automatically thins itself to protect us.
This is not true about blood because if we are in an accident, the blood automatically THICKENS or CLOTS so that we don't lose too much blood. If our blood is too thin, we will lose a lot of blood in an accident.
Which of the following options ARE TRUE about blood flow?
A. The pulmonary circuit is the path the blood takes between the heart and the lungs.
B. Humans have a double and complete circulatory system.
C. Blood runs through three circuits: the pulmonary circuit, the excretory circuit and the systemic circuit.
D. Blood flow refers to the circulation of the blood, pumped by the heart movements through the circulatory system.
Which of the following ARE TRUE about blood flow?
A, B, and D.
A. The pulmonary circuit is the path the blood takes between the heart and the lungs.
B. Humans have a double and complete circulatory system.
D. Blood flow refers to the circulation of the blood, pumped by the heart movements through the circulatory system.
Option C is incorrect because blood runs through TWO circuits: the pulmonary circuit and the systemic circuit.
Which of the following options ARE TRUE about urine formation?
A. Urine is formed in two stages.
B. Stage one is called filtration. Filtration takes place in the Browman's capsule, producing what we call primary urine.
C. As well as purifying the blood, the formation of urine regulates the quantity of oxygen and CO2 in the body, thereby helping to maintain its internal balance.
D. In the reabsorption stage, a large part of the substanes in primary urine is reabsorbed in the renal tubule and returned to the blood.
Which of the following options ARE TRUE about urine formation?
A and D.
A. Urine is formed in two stages.
D. In the reabsorption stage, a large part of the substanes in primary urine is reabsorbed in the renal tubule and returned to the blood.
Options B and C are not true.
B. Stage one is called filtration. Filtration takes place in the Browman's capsule, producing what we call primary urine. - FALSE: stage one takes place in the GLOMERULUS.
C. As well as purifying the blood, the formation of urine regulates the quantity of oxygen and CO2 in the body, thereby helping to maintain its internal balance. - FALSE: the formation of urine regulates the quantity of WATER and MINERALS in the body.
Which of the following options is FALSE about circulatory system illnesses?
A. Blood vessel disorders include hypertension (or high blood pressure) and arterioscelerosis, which causes the arteries to harden.
B. Blood disorders include anaemia, which occurs when part of the heart muscle dies when it does not recieve enough blood.
C. Leukaemia involves abnormally high number of white blood cells.
D. Circulatory system illnesses include myocardial infarctions (commonly known as heart attacks).
Which of the following options is FALSE about circulatory system illnesses?
B. Blood disorders include anaemia, which occurs when part of the heart muscle dies when it does not recieve enough blood.
FALSE - Anaemia is a decrease in the amount of red blood cells in the blood. Option B gives the definition of a HEART ATTACK.
Which of the following options ARE TRUE about the anatomy of the heart:
A. The heart is divided in two halves, right and left, and is separated lengthwise by the septum.
B. The aorta artery leaves the right ventricle and distributes blood containing CO2 around the body.
C. The small arteries that leave the heart have valves at the point of entrance called smilunar valves.
D. The pulmonary veins stem from the lungs and end in the left atrium.
Which of the following options ARE TRUE about the anatomy of the heart:
Options A and D are TRUE.
A. The heart is divided in two halves, right and left, and is separated lengthwise by the septum.
D. The pulmonary veins stem from the lungs and end in the left atrium.
B. The aorta artery leaves the right ventricle and distributes blood containing CO2 around the body. - FALSE: The aorta leave the LEFT ventricle and distributes blood containing OXYGEN.
C. The small arteries that leave the heart have valves at the point of entrance called smilunar valves. FALSE: The LARGE arteries that leave the heart have valves at the point of EXIT.