Quiz 1: Cell Anatomy, genetics, pelvis, skull Flashcards

(70 cards)

1
Q

Place in correct levels of organisation: organ, molecule, tissue, cell, organism, organelle, organ system, atom

A

Atom>molecule>organelle>cell>tissue>organ>organ system>prganism

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2
Q

What type of tissue is epithelial

A

Protective, secretory, absorptive

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3
Q

In what kind of cells does mitosis occur

A

somatic

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4
Q

Correctly place the phases of mitosis in order:

Cytokinesis, Anaphase, Prophase, Interphase, Telophase, Metaphase

A

Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

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5
Q

In what phase of mitosis do the mitotic spindles dissolves and new nuclear envelopes form at the poles

A

Telophase

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6
Q

In what phase oh mitosis does the cell grow in preparation for division

A

Interphase

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7
Q

In what phase of mitosis do the mitotic spindles move the chromosomes to align along the equator of the cell

A

metaphase

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8
Q

In what phase of mitosis causes the physical separation of the cytoplasm

A

cytokinesis

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9
Q

In which phase of mitosis do the spindle shorten, separating the chromatids and pulling them towards each pole

A

Anaphase

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10
Q

In which phase of mitosis do the mitotic spindles attach themselves to the centromere of each chromosome

A

prophase

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11
Q

At what stage of meiosis ensures a variety and random assortment of chromosomes

A

End of meiosis 1

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12
Q

What stage of meiosis is very similar to mitosis

A

Meiosis 2

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13
Q

At what point does an ovum complete its meiosis 2 stage

A

At the point of fertilisation before male nucleus and female nucleus fuse

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14
Q

Provide a definition for diffusion

A

movement of soluble particles through a permeable membrane from a solution of high concentration to a solution of low concentration

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15
Q

Provide a definition of facilited diffusion

A

molecules that are too large are helped across a membrane through carrier molecules which form channels

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16
Q

Define active transport

A

energy used to move molecules across a membrane can be against the concentration gradient

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17
Q

Define osmosis

A

Movement of water molecules from a region or low contentration to a region of high concentration acrosss a semi-permeable membrane

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18
Q

What does hypertonic mean

A

more concentrated

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19
Q

What does hypotonic mean

A

less concentrated

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20
Q

What does isotonic mean

A

of same concentration

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21
Q

What is haemolysis

A

When RBC swell and burst as a result of dense water concentration

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22
Q

Define homeostasis

A

ability for an organism to maintain its internal environment within limits that allow it to survive

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23
Q

What is genetics

A

The study of inherited traits and their variants

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24
Q

What are the nucleotides that form the basic units of DNA

A

Adenine, Guamine, Cytosine, Thymine

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25
Adenine forms a base pair with which other nucleotide
Thymine
26
Cytosine forms a base pair with which other nucleotide
Guamine
27
What are germline mutations
Mutations that occur in the DNA replication in sex cells prior to meiosis
28
What are somatic mutations
an alteration to DNA that occurs after conception
29
What are alleles
Variants of genes
30
What is a dominant allele
effect expressed when present in just one chromosome
31
What is a recessive allele
effect expressed when present on both chromosome
32
What is meant by the term 'homozygous'
a genetic condition where an individual inherits the same allele for a particular gene from both parents
33
What is meant by the term 'heterozygous'
a genetic condition whereby an individual has two different alleles of a particular gene(s)
34
What is a congenital defect
a structural or functional abnormality that occurs during intrauterine life
35
How many bones make up the female pelvis
4 = two innominate, 1 sacrum, 1 coccyx
36
How many regions are the innominate bones divided into
3 = illium, ischium, pubis
37
Place these inlet landmarks in order: sacral ala, superior ramus of the pubic bone, sacral promontory, iliopectineal eminence, sacroilliac joint, upper inner border of the symphysis pubis, iliopectineal line, upper inner border of the body of the pubic bones
sacral promontory, sacral ala, sacroiliac joint, iliopectineal line, iliopectineal eminence, superior ramus of the pubic bone, upper inner border of the body of the pubic bones, upper inner border of the symphysis pubis
38
What is the Curve of Carus
arc corresponding to pelvis axis = a line drawn exactly halfway between the anterior wall and the posterior wall of the pelvis canal
39
What kind of pelvis most resembles a male pelvis, has a heart-shaped/triangular brim
Android pelvis
40
What kind of pelvis is long and oval in shape
Anthropoid pelvis
41
What kind of pelvis has a rounded brim and is most favourable for positive outcomes of childbearing
Gynaecoid
42
What kind of pelvis is kidney-shaped
Platypelloid
43
True or false: | The shoulders are the largest part of the fetal body to be born
False, | The head is.
44
What shape is the fetal skull
Ovoid
45
What does the sinciput region of the fetal skull refer to
the area from the two frontal bones extending from teh anterior fontanelle and the coronal suture to the orbital ridges
46
What does the vertex region of the fetal skull refer to
the area bound in front by the anterior fontenelle, behind by the posterior fontanelle, and laterally by the parietal eminences
47
What does the occiput region of the fetal skull refer to
the area over the occipital bones = lies between the foramen mangnum and the posterior fontanelle
48
What is the vault?
the large, dome part above an imaginnary line drawn between the orbital ridges and the nape of the neck
49
What is the base
comprises of bones that are firmly unitied to protect the vital centres in the medulla oblagata
50
what is the face
area comprised of 14 small bones that are firmly united and non-compressible
51
How many boens make up the vault?
5: x2 frontal bones x2 parietal bones x1 occipital bone
52
Define "suture"
fibrous joint in which opposed bony surfaces are closely united by thin connective tissue, permitting movement ie. cranial joints **oly found in a neonate
53
Define "fontanelle"
membranous non-ossifies areas of the skull where three or more sutures meet
54
Define "sinus"
Cavities in cranial bones or dilated channels for venous blood
55
What does the SOB diameter refer to, and what is its' measurement
Suboccipitobregmatic = 9.5cm
56
What does the SMB diameter refer to, and what is its' measurement
Submentobregmatic = 9.5cm
57
What measurement is shown when during a brow presentation, when the head is midway between flexion and extension, and what is its measurement
Mentovertical = 13.5cm
58
What two measurements are referred to during face presentations
Submentovertical and submentobregmatic
59
What transverse diameter is measured between the parietal eminences
the biparietal
60
What transverse diameter is measured between the most distant parts of the coronal sutures
the bitemporal
61
What is caput succedaneum
oedematous fetal head swelling
62
what is cephalhaematoma
blood collection beneath periosteum of one cranial bone
63
What is moulding
used the describe the change in shape of the fetal skull that takes place during passage through the birth canal
64
Meiosis is the process of cell division which results in
Haploid number of chromosomes
65
The energy for active transport comes from:
ATP
66
The movement of substances against their concentration gradient is known as
Active transport
67
The synthesis of RNA from a DNA template is called
Transcription
68
The occipitofrontal diameter is:
11.5cm
69
The sagittal suture runs from:
The anterior fontanelle to the posterior fontanelle.
70
The biparietal diameter is:
9.5cm.