# Melanoblastoma are derived from:
A. Basal epidermal cells
B. Neural crest cells
C. Prickle cells of epidermis
D. Somato pleuric mesoderm
The correct answer is B. Neural crest cells.
Melanoblastoma are derived from Neural crest cells.
Notochord develops in:
# Notochord develops in:
A. 3rd week
B. 3rd month
C. 6th month
D. 10th month
The correct answer is A. 3rd week.
The notochord arises from axial mesoderm at about 16 days and is completely formed by the beginning of the fourth week. It defines the longitudinal axis of the embryo, determines the orientation of the vertebral column, and persists as the nucleus pulposus of the intervertebral discs.
Implantation occurs at the stage of:
# Implantation occurs at the stage of:
A. Zygote
B. Morula
C. Blastocyst
D. Primary villi
The correct answer is C. Blastocyst.
The blastocyst is a structure formed in the early development of mammals. It possesses an inner cell mass (ICM) which subsequently forms the embryo. The outer layer of the blastocyst consists of cells collectively called the trophoblast. This layer surrounds the inner cell mass and a fluid-filled cavity known as the blastocoel. The trophoblast gives rise to the chorion and amnion that surround the embryo.
In humans, blastocyst formation begins about 5 days after fertilization when a fluid-filled cavity opens up in the morula, the early embryonic stage of a ball of 16 cells. The blastocyst has a diameter of about 0.1–0.2 mm and comprises 200–300 cells following rapid cleavage (cell division). About seven days after fertilization, the blastocyst undergoes implantation, embedding into the endometrium of the uterine wall. There it will undergo further developmental processes, including gastrulation. Embedding of the blastocyst into the endometrium requires that it hatches from the zona pellucida, which prevents adherence to the fallopian tube as the pre-embryo makes its way to the uterus.
AIIMS MDS ENTRANCE PAST QUESTIONS NOV 2010
A. Hypophosphatasia
B. Vit D resistant rickets
C. Juvenile periodontitis
D. Osteomalacia
# A 9 year old female patient with severe oraL ulceration is suffering with salivation, fever, headache and malaise. The peeling of skin of hand and sole is noted. There is increased tendency for sweating. She is also giving one month history of using a new teething gel available in the market. The most probable diagnosis is:
A. Erosive lichen planus
B. Epidermolysis bullosa
C. Acrodynia
D. Stevens Johnsons syndrome
# A constant feature associated with radicular cyst is:
A. Vital tooth
B. Non vital tooth
C. Both
D. None
# Ehler Danlos syndrome is:
A. Autosomal dominant
B. Autosomal recessive
C. X linked dominant
D. X linked recessive
# Increased monocytic count is seen in typhus and which of the following conditions?
A. SABE
B. Herpes labialis
C. HIV
D. Characteristic parasitic infections
# Monocytes are seen in tuberculosis, monocytic leukemia, typhoid, and:
A. Pernicious anemia
B. Hodgkins lymphoma
C. Parasitic infection
D. Sub acute bacterial endocarditis
# Moth eaten appearance is seen in all EXCEPT:
A. Osteomyelitis
B. Haemorrhagic cyst
C. OKC
D. Osteosarcoma
# Moth eaten appearance is seen in:
A. Chronic osteomyelitis
B. Fibrous dysplasia
C. Multiple myeloma
D. Osteopetrosis
# Radiographs of 40 year old female revealed radiolucent areas around several of her mandibular teeth, all teeth which tested vital on the electric pulp tester. These areas represent:
A. Multiple granulomas
B. Periapical osteofibrosis
C. Chronic Periapical abscess
D. Bone hypoplasias associated with opalescent teeth
Maa Rajdevi Multispeciality Dental Care Pvt. Ltd., Rajbiraj, Nepal
Name of Dental Clinic: Maa Rajdevi Multispeciality Dental Care Pvt. Ltd.
Address (Full) West gate of Sagarmatha zonal hospital ,First floor ,Rajbiraj , Saptari, Nepal
Year of Establishment: 2020
Name of the chief Dental Surgeon: Dr.Yogendra Prasad Raut
CONTACT NUMBER: 9811112289
JYOTI DENTAL CLINIC, Dhangadhi-4 Chauraha Kailali
Name of Dental Clinic: JYOTI DENTAL CLINIC
Address (Full) Dhangadhi-4 chauraha kailali
Year of Establishment: 2078
Name of the chief Dental Surgeon: Dr.Bhupesh Joshi
CONTACT NUMBER: 9748864639
Samriddhi Dental Clinic, Uttarbehdi 04, Dhangadhi, Kailali
Name of Dental Clinic: Samriddhi Dental Clinic
Address (Full) Uttarbehdi 04,Dhangadhi, Kailali
Year of Establishment: 2078
Name of the chief Dental Surgeon: Dr.Santosh Pandey
CONTACT NUMBER: 9801722495
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