Musculoskeletal Development

Descrição

Quiz sobre Musculoskeletal Development , criado por MPusey em 13-01-2015.
MPusey
Quiz por MPusey, atualizado more than 1 year ago
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Criado por MPusey quase 10 anos atrás
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Resumo de Recurso

Questão 1

Questão
Which of the following develop from somites?
Responda
  • Axial skeleton
  • Appendicular skeleton
  • Axial muscles
  • Appendicular muscles

Questão 2

Questão
What is found in the centre of the developing embryo?
Responda
  • Neural tube
  • Pairs of somites
  • Limb buds
  • Notochord
  • Sclerodome

Questão 3

Questão
Somites develop in pairs. True or false?
Responda
  • True
  • False

Questão 4

Questão
From which end do the pairs of somites develop?
Responda
  • Caudal end
  • Rostral end
  • Superior end
  • Inferior end

Questão 5

Questão
What is somite development controlled by?
Responda
  • A chemical gradient
  • The mother's hormonal levels
  • Which genes a switched on or off in each cell

Questão 6

Questão
Somites account for only a small amount of our body mass after development. True or false?
Responda
  • True
  • False

Questão 7

Questão
Which of the following are developed from the somites?
Responda
  • Dermatome
  • Myotome
  • Sclerotome
  • Syndetome
  • Heptatome
  • Angiotome

Questão 8

Questão
What does the skin develop from?
Responda
  • Dermatome
  • Myotome
  • Sclerotome
  • Syndetome

Questão 9

Questão
What does muscle develop from?
Responda
  • Myotome
  • Dermatome
  • Scleratome
  • Syndetome

Questão 10

Questão
What does bone develop from?
Responda
  • Sclerotome
  • Dermatome
  • Myotome
  • Syndetome

Questão 11

Questão
What do ligaments and tendons develop from?
Responda
  • Syndetome
  • Dermatome
  • Myotome
  • Scleratome

Questão 12

Questão
What do somites induce?
Responda
  • Spinal nerve formation
  • Cranial nerve formation
  • Afferent neurone formation
  • Efferent neurone formation

Questão 13

Questão
How are vertebrae formed from the somites?
Responda
  • From the caudal end of one somite and the cranial end of another
  • One somite goes onto create one vertebra
  • Two somites fuse across the neural tube to form a vertebral bone
  • Somites do not go onto form vertebrae

Questão 14

Questão
Which part of the somite is split into two by the development of the spinal nerve?
Responda
  • Scleratome
  • Myotome
  • Dermatome
  • Syndetome

Questão 15

Questão
The scleratome of the first five somites goes onto create which bone?
Responda
  • Occipital bone
  • Frontal bone
  • Temporal bone
  • Sphenoid bone
  • Parietal bone

Questão 16

Questão
The scleratome converges around the neural tube. True or false?
Responda
  • True
  • False

Questão 17

Questão
If the scleratome does not converge around the spinal cord completely what condition will the child have?
Responda
  • Spina bifida
  • Pattau's syndrome
  • Scoliosis
  • Brevicollis
  • Kyphosis

Questão 18

Questão
Where in the developing embryo will the notochord be found?
Responda
  • In the neural tube
  • Between the first and second somites
  • In the scleratome
  • In the developing spinal nerves

Questão 19

Questão
Most of the notochord is removed during development, but it remains in one place. Where does it remain?
Responda
  • Nucleus pulposis of the intervertebral disc
  • Annulus fibrosis of the intervertebral disc
  • In the dorsal root ganglion of spinal nerves
  • In the lining of the ventral median fissure of the spinal cord

Questão 20

Questão
What is scoliosis?
Responda
  • Lateral curvature of the spine
  • Reduced number of cervical vertebrae
  • Reduced number of thoracic vertebrae
  • Dorsal displacement of the spine

Questão 21

Questão
What is brevicollis?
Responda
  • Reduced number of cervical vertebrae
  • Reduced number of thoracic vertebrae
  • Lumbar vertebrae of abnormally small size
  • Absence of a sacral bone

Questão 22

Questão
What do limb buds develop from?
Responda
  • Lateral mesoderm and over-lying ectoderm
  • Medical mesoderm and ectoderm
  • Mesoderm and the ectoderm that is deep to it
  • Mesoderm only

Questão 23

Questão
What are limb buds controlled by?
Responda
  • HOX genes
  • House-keeping genes
  • Chemical gradients
  • Somites

Questão 24

Questão
What develops from the limb buds?
Responda
  • Appendicular skeleton
  • Appendicular muscles
  • Axial skeleton
  • Axial muscles

Questão 25

Questão
What are the three stages in limb bud development?
Responda
  • Initiation
  • Limb bud patterning
  • Digit patterning and sculpting
  • Elongation
  • Sclerotome division

Questão 26

Questão
During limb bud patterning of the upper limb, which bone will develop first?
Responda
  • Carpals
  • Ulna
  • Humerus
  • Scapula

Questão 27

Questão
What does digit patterning involve?
Responda
  • Apoptosis of cells at the end of the limb bud
  • Coordinated outgrowth of cells to form digits
  • Necrosis of webbing between the newly developed digits

Questão 28

Questão
What are the names of the two signalling centres on the limb buds?
Responda
  • Apical ectodermal ridge (AER)
  • Zone of polarising activity (ZPA)
  • Basal mesodermal dome (BMD)
  • Sclerotome signalling centre (SSC)

Questão 29

Questão
Which of the following is produced by the apical ectodermal ridge (AER)?
Responda
  • FGF8
  • SHH
  • Sonic hedgehog

Questão 30

Questão
What is the function of the signalling molecules produced by the AER and the ZPA?
Responda
  • Ensure the correct bones develop in the correct place
  • Ensure that apoptosis occurs where it is needed to
  • Ensure that the limb bud reaches it's full length
  • Ensure that any mutated cells are destroyed
  • Ensure that the limb bud develops in the correct direction by creating a chemical gradient

Questão 31

Questão
What is the function of FGF8 from the apical ectodermal ridge (AER)?
Responda
  • Maintain proliferation in the progress zone
  • Prevent cell division anywhere other than the progress zone
  • Turn of proliferation in the progress zone when new cells are no longer required

Questão 32

Questão
What chemical signal controls the apoptosis that creates the fingers and the toes?
Responda
  • BMP
  • SHH
  • FGF8
  • Sonic hedgehog

Questão 33

Questão
What will occur when apoptosis of the end of the limb bud does not occur?
Responda
  • Syndactayly
  • Meromelia
  • Cleft hand or foot

Questão 34

Questão
What condition is BMP related to where the receptors are activated when BMP is not present?
Responda
  • Fibrodysplasia ossificans progressiva
  • Osteoarthritis
  • Rheumatoid arthritis
  • Ankalyosis spondylitis

Questão 35

Questão
What happens in fibrodysplasia ossificans progressivia?
Responda
  • Tissues become progressively ossified when they shouldn't be
  • The ossification of tissues is progressively broken down
  • The body has an inflammatory reaction to tissue that are ossified

Questão 36

Questão
What is amelia?
Responda
  • The congenital absence of one or more limbs
  • The congenital absence of a part, but not all, of one or more limbs but with the presence of a hand or foot
  • A congenital deformity in which the hand or feet are closely attached to the torso with the limbs being under-developed

Questão 37

Questão
What is meromelia?
Responda
  • Congenital absence of one or more limbs
  • Congenital absence of a part, but not all, of one or more limbs but with the presence of a hand or foot
  • A congenital deformity in which the hands or feet are closely attached to the torso, with the limbs being under-developed

Questão 38

Questão
What is phocomelia?
Responda
  • A congenital deformity in which the hands or feet are closely attached to the torso, with the limbs being under-developed
  • The congenital absence of one or more limbs
  • The congenital absence of a part, but not all, of one or more limbs, but with the presence of a hand or foot

Questão 39

Questão
What drug is famously known to cause amelia, meromelia and phocomelia?
Responda
  • Thalidomide
  • Methotrexate
  • Dexamethosone
  • Enalapril
  • Aspirin

Questão 40

Questão
What is ectrodactyly?
Responda
  • Congenital absence of part or all of one or more fingers or toes
  • A condition in which a person has more than five fingers or toes on one, or each, of their hands or feet
  • A condition of having some or all of the fingers or toes partly or wholly united

Questão 41

Questão
All the normal elements of a limb are present in club foot or club hand. True or false?
Responda
  • True
  • False

Questão 42

Questão
Why are the dermatomes in an adult human rotated?
Responda
  • Because of limb rotation that occurs during development
  • Because of limb rotation that occurs after birth
  • Because we a bipedal, not quadrupedal
  • Because the spinal nerve rotate during development

Questão 43

Questão
What condition affects one dermatome of skin?
Responda
  • Shingles
  • Menigitis
  • Pityriasis rosea
  • Bell's palsy
  • Chicken pox

Questão 44

Questão
Why does shingles only affect one dermatome?
Responda
  • Because the virus travels down one spinal nerve only
  • Because the immune cells in this area of skin have been destroyed
  • Because the virus is only present on the skin in this dermatome

Questão 45

Questão
What does the myotome go onto form?
Responda
  • Epimere
  • Hypomere
  • Ectomere
  • Mesomere
  • Hypermere

Questão 46

Questão
The limb muscles develop from the...?
Responda
  • Hypomere
  • Epimere
  • Hypermere
  • Ectomere
  • Mesomere

Questão 47

Questão
What does the epimere develop into?
Responda
  • Dorsal muscles - i.e. muscles of the back
  • Limb muscles - i.e. flexors and extensors
  • Ventral muscles - i.e everything but the muscles of the back

Questão 48

Questão
Which of the following is bigger?
Responda
  • Hypomere
  • Epimere

Questão 49

Questão
What goes onto supplies the muscles formed from the epimere?
Responda
  • Dorsal ramus of the spinal nerve
  • Ventral ramus of the spinal nerve
  • Sympathetic chain
  • Cranial nerves IX - XI

Questão 50

Questão
What controls somite division?
Responda
  • Signalling molecules produced by adjacent tissues
  • Signalling molecules produced by the neural tube
  • Signalling molecule produces by the notocord
  • Signalling molecules in the embryonic fluid
  • Hormones produced by the mother

Questão 51

Questão
What do myogenic factors do?
Responda
  • Drive skeletal muscle-specific differentiation
  • Create a chemical gradient to direct muscle growth in the correct direction
  • Prevent abnormal muscle growth

Questão 52

Questão
Myogenic factors remain present after development. True or false?
Responda
  • True
  • False

Questão 53

Questão
What is the function of myogenic factors after development?
Responda
  • Set aside stem cells for muscle repair
  • Prevent abnormal muscle growth
  • Prevent striation from being lost from the skeletal muscle

Questão 54

Questão
Signalling molecule BMP is also important in the attachment of the syndetome to bone and muscle so it can form tendons. True or false?
Responda
  • True
  • False

Questão 55

Questão
What are the name of the stem cells within mature skeletal muscle?
Responda
  • Satellite cells
  • Basal cells
  • Myogenic repair cells

Questão 56

Questão
What neurotransmitter is present at the neuromuscular junction?
Responda
  • Acetylcholine
  • Dopamine
  • Noradrenaline
  • GABA

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