2713147
Questão 1
Questão
What is the following structure called?
Responda
-
Blastocyst
-
Morula
-
Zygote
Questão 2
Questão
The primitive streak is indicative of gastrulation occuring.
Responda
- True
- False
Questão 3
Questão
The ectoderm gives rise to...
Responda
-
Enamel
-
Epidermis
-
Nervous system
-
Cardiovascular system
-
Respiratory system
-
Gastrointestinal system
Questão 4
Questão
The mesoderm gives rise to...
Responda
-
Cardiovascular system
-
Muscle
-
Connective tissue
-
Epidermis
-
Urinary system
-
Gastrointestinal tract
Questão 5
Questão
The endoderm gives rise to...
Responda
-
Respiratory system
-
Gastrointestinal tract
-
Urinary system
-
Cardiovascular system
-
Epidermis
-
Nervous system
Questão 6
Questão
The notochord forms from the notochordal plate in a cranial to caudal sequence.
Responda
- True
- False
Questão 7
Questão
What substances does the primitive node release?
Responda
-
Brain derived neurotrophic factor
-
NODAL
-
BMP4
-
Noggin
-
CSPG's
Questão 8
Questão
The function of NODAL is...
Responda
-
Maintains the primitive streak
-
Stimulates skin formation from the ectoderm
-
Stimulates cranial structure and nervous system development
Questão 9
Questão
The function of BMP4 is...
Responda
-
Maintains the primitive streak
-
Stimulates skin formation from the ectoderm
-
Stimulates cranial structure and nervous system development
Questão 10
Questão
The function of Noggin is...
Responda
-
Maintains the primitive streak
-
Stimulates skin formation from the ectoderm
-
Stimulates cranial structure and nervous system development
Questão 11
Questão
Neurulation is folding of the neural plate which continues until formation of a neural tube. The closure disconnects the neural crest from the ectoderm, also forming neural crest cells.
Responda
- True
- False
Questão 12
Questão
The notochord releases BMP that patterns the ventral side of the neural tube which gives the precursor to the motor neurones of the ventral spinal cord
Responda
- True
- False
Questão 13
Questão
Neural crest cells are formed when the neural tube closes and detaches from the ectoderm. Give some examples of where they may migrate and what structures develop.
Responda
-
Ectoderm - melanocytes
-
Mesoderm - ganglia, bones of the face and skull
-
Endoderm - urinary system
Questão 14
Questão
Spina Bifida is caused by failure of the neural tube to close.
Responda
- True
- False
Questão 15
Questão
NODAL helps to establish internal asymmetry.
Responda
- True
- False
Questão 16
Questão
Mutations in SHH leads to lack of bilateral symmetry and development of conditions like cyclopsia.
Responda
- True
- False
Questão 17
Questão
Hox genes control body segmentation; essentially determining what section of the body will become what particular limb etc.
Responda
- True
- False
Questão 18
Questão
The visceral layer of the lateral plate mesoderm gives rise to what structure?
Responda
-
GI tract
-
Muscle
-
Heart
-
Lungs
Questão 19
Questão
The parietal layer of the lateral plate mesoderm gives rise to what structures?
Responda
-
Bones of limbs
-
Connective tissue of limbs
-
Urogenital system
-
Heart
Questão 20
Questão
The intermediate mesoderm gives rise to what structure?
Responda
-
Urogenital system
-
Respiratory system
-
Connective tissue of limbs
-
GI tract
Questão 21
Questão
The paraxial mesoderm differentiates into dermatome, myotome and sclerotome. What will the dermatome become?
Responda
-
Dermis
-
Muscle
-
Tendon
-
Cartilage
-
Bone
Questão 22
Questão
The paraxial mesoderm differentiates into dermatome, myotome and sclerotome. What will the myotome become?
Responda
-
Dermis
-
Muscle
-
Tendon
-
Cartilage
-
Bone
Questão 23
Questão
The paraxial mesoderm differentiates into dermatome, myotome and sclerotome. What will the sclerotome become?
Responda
-
Dermis
-
Muscle
-
Tendon
-
Cartilage
-
Bone
Questão 24
Questão
What structures may the pharyngeal pouches give rise to?
Responda
-
Palatine tonsils
-
Parathyroid gland
-
Thymus gland
-
Thyroid gland
-
Cricoid cartilage
Questão 25
Questão
Neural crest cells migrate to the pharyngeal arches. Failure of migration can lead to conditions such as spina bifida.
Responda
- True
- False
Questão 26
Questão
What muscular and skeletal structures arise from the 1st pharyngeal arch?
Responda
-
Mandible
-
Muscles of mastication
-
Muscles of facial expression
-
Styloid process
Questão 27
Questão
What muscular and skeletal structures arise from the 2nd pharyngeal arch?
Responda
-
Mandible
-
Styloid process
-
Muscles of mastication
-
Muscles of facial expression
Questão 28
Questão
What muscular and skeletal structures arise from the 3rd pharyngeal arch?
Responda
-
Stylopharyngeus
-
Hyoid
-
Styloid process
-
Thyroid cartilage
Questão 29
Questão
What muscular and skeletal structures arise from the 4th pharyngeal arch?
Responda
-
Mandible
-
Pharyngeal constrictors
-
Thyroid cartilage
-
Muscles of facial expression
Questão 30
Questão
What muscular and skeletal structures arise from the 6th pharyngeal arch?
Responda
-
Cricoid cartilage
-
Intrinsic muscles of the larynx
-
Pharyngeal constrictors
-
Thyroid cartilage
Questão 31
Questão
The medial nasal prominences fuse to form the secondary palate.
Responda
- True
- False
Questão 32
Questão
The maxillary prominences fuse to form the secondary palate.
Responda
- True
- False
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