test Flashcards

1
Q

which of the following correctly describes cardiac muscle?

A

Involuntary, striated and branched

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the function of simple squamous epithelium?

A

Allows the passage of materials by diffusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

which part of the brain is responsible for our ability to move and make decisions?

A

frontal lobe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

————-involves the breakage of a chromosome in two places. The resulting piece of DNA is reversed and re-inserted into the chromosome

A

inversion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

the central dogma of molecular biology is summarised as:

A

DNA——– transcription——–RNA———translation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

———–decodes mRNA sequence into a protein . Functions at specific sites in the ribosome during translation

A

tRNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A change in one DNA base pair that results in the substituition of one amino acid for another in the protein made by a gene is called ——- mutation

A

Missense

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Cystic fibrosis is an inherited condition. How is CF passed down through families

A

Both parents are carriers of the CF gene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the role of the RNA polymerase enzyme?

A

Breaks the attachment between the DNA strands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Autosomal dominant inheritance can be describe as having:

A

A single copy of the associated mutation that is enough to cause the disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

which term is used to describe two different alleles for a trait?

A

Heterozygous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

——–mutations occur at sometime during a person’s life and are present only in certain cells, not in every cell of the body. They can be caused by environmental factors such as UV radiation

A

somatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

veins:

A

Have valves to prevent backflow of blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The site of gas exchange has a large surface area of:

A

70cm2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Oxygen is mostly transported in the blood

A

Bound to haemoglobin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the function of the Gastrointestinal system?

A

All of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

which enzyme breaks down starch

A

Amylase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What does an ECG measure?

A

The electrical activity within the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Which of the following is the correct sequence of electrical stimulus during every heartbeat?

A

Atrail depolarisation, ventricular depolarisation, atral and ventricular repolarisation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

which of these statements most accurately reflects the absorption characteristics which enable the measurement of oxygen saturation by pulse oximetry?

A

De-oxygenated and oxygenated blood have different light absorption characteristics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Pulse oximetry relies on light transmission through either the finger or ear lobe. Which of the following most accurately reflects the factors which light transmission is dependt on?

A

Thickness, colour, and structure of the skin, tissue bone blood, and other material which the light passes through

22
Q

Pulse oximetry relies on light transmission through either the finger or ear lobe. Which of the following most accurately reflects the factors which light transmission is dependt on?

A

Thickness, colour, and structure of the skin, tissue bone blood, and other material which the light passes through

23
Q

Before performing spirometry for diagnostic testing, subjects are asked to withhold the use of short acting, B2 agonist bronchodilators (example salbutamol). Which of the following best indicates how long subjects should be asked to withhold the medication

A

At least 4 hours

24
Q

The most abundant type of white blood cell in a healthy adult is

A

Neutrophils

25
Which of the following most accurately represents the impact of pulsatile flow on the measurement of oxygen saturation using pulse oximetry
Pulsatile arterial blood during systole cause an influx of oxyhaemoglobin to the tissue, absorbing more infrared light, allowing less light to each photodetector
26
In which of the following vessels does blood return to the heart from the head and upper limbs
superior vena cava
27
Which one of the following aids with the movement of air into the lungs
All of the above
28
Carbohydrates are broken down into
simple sugars
29
which one of the following is a Bipolar limb lead?
Lead I
30
Which of the following is the pacemaker of the heart
The sinostrial node
31
A patient with already diagnosed Chronic Obstructive Pulmonary Disease has performed spirometry. Which of the following would provide the clinician with information to be able to confirm the diagnosis of an obstructive airway disease?
Reduces FEV1/FVC ratio
32
A normal P-R interval should be between
0.12- 0.2
33
Which of the following is the correct route for the blood returning to the heart from the systemic circulation
Vena cava, right atrium right ventricle, pulmonary artery
34
The following is the deflection seen on the surface ECG when depolarization of the left and right atrium is occurring.
The P wave
35
which of the following substances can be secreted into the nephron?
Drugs
36
Which cells would you find in the grey matter of the Central Nervous System?
neurones
37
The normal paper speed setting for an ECG machine should be:
25mm/sec
38
The central nervous system is composed of:
The brain and spinal cord
39
The glomerulus is a capillary turf that allows the passage of fluid into which part of the nephron
Bowman's capsule
40
the function of the renal pelvis is to:
Funnel urine into the ureter
41
Which cell myelinates neurons in the central nervous system?
Oligodendrocytes
42
within the stomach, the parietal cells:
secrete hydrochloric acid
43
Which structure's primary function is the reabsorption of water
collecting duct
44
A pulse oximeter generally uses light at which two wavelengths?
600nm and 900nm
45
Bile is stored in the:
Gall bladder
46
Which One of the following is Not part of the lower respiratory tract?
Alveolus
47
The hypothalamus is located in which CNS area?
Midbrain
48
The Pituitary gland is a gland located
Below the hypothalamus
49
The Bowman's capsule is closely associated with the
Glomerulus
50
The medulla of the adrenal gland secretes which one of these hormones?
Adrenaline
51
Which one of the following is not part of the upper respiratory tract?
Trachea