Anatomy Flashcards
Nerve most likely to get damaged in CS
Lateral femoral cutaneous nerve
Damage to which nerve causes hiccups
Phrenic nerve ( eg. In aortic dissection )
What is the underlying cause of Sirenomelia (Single limb)
Caudal Dysgenesis
Lesion in the paracentral lobule causes weakness in the following region
perineum and limbs, contralateral lower limbs, Urinary incontinence and fecal incontinence
Trendelenberg sign
Stability of the pelvis and hip abductor muscles such as Gluteus medius and Maximus
The maxillary artery is formed from which arch
Mandibular arch (first)
internal and common carotid artery id formed from which arch
Third arch (hyoid)
The fourth arch develops into
aortic arch
Ductus arteriosus develops from which pharyngeal arch
6th
Structure developing in dorsal mesogastrium:
Spleen at 6th week of intrauterine life
Skin receptor responsible for detecting rapid vibration
Paccinian corpuscle
Skin receptor responsible for detecting edges and corners
Merkel cell
Skin receptor responsible for pressure
Ruffini’s corpuscles
Failure of closure of rostral neuropore at 25th day leads to
Anencephaly
Failure of closure of Caudal neuropore at 28th day leads to
Spina Bifida
Neural crest cell mi ation is due to:
Hyaluronic acid
First pouch
Middle ear cavity and eustasian tube
2nd pouch forms
palatine tonsils
3rd pouchforms
parathyroid and thymus
4th pouch forms
Superior parathyroid and c-cells responsible for calcitonin production
Tumor derived from Rathke’s pouch
Craniopharyngioma
hardest bone in the body
Osseus Labrynth: part of temporal bone , also called rock bone
Homologus male parts of Labia majora and minora
Scrotum and Penile shaft
how many blood vessels in umbilicus
2 arteries and 1vein supplying to fetus
Superoir vena cava is derived from
Cardinal vein
StyIohyoid ligament is derived from
2nd brachial arch
Sphenomandibular ligament is derived from which branchial arch?
1st
Tonsil is derived from:
2nd pouch
External auditory canal is formed from:
Dorsal part of 1st cleft
Lower 1/3 of vagina is formed by:
sinovaginal bulb or urogenital sinus
Upper 2/3 of vagina is formed from
Mullerian duct or parameso nephric duck
Hypoblast and epiblast forms:
Prechordal plate and notochord
gastrulation occurs at
Week 3
First germ layer to be formed is:
endoderm
Pons is derived from
Metencephalon
Metanephros gives rise to what structure
Definitive adult kidney
collecting duct is dervied from
ureteric bud
Prostate is derived from
Urongenital Sinus
Synovial fluid is produced by which cells
Type B synoviocytes
what is respberry tumor
umbilical adenoma
fecal fistula at umbilicus is due to
Persistent vitellointestinal duct
At what stage of embryonic development does an embryonormally begin to implant in the endometrium?
Blastocyst at the 6th day
Fetal stage is termed at
10th week of gestation or 8th week of fertilization
where is adrenal medulla dervied from
neural crest cells
Where is adrenal cortex dervied from
Mesoterm
Germ cells develops from
Yolk sac
testosterone is secreted by
Leydig cell
Gallbladder is lined by
Brush bordered columnar epithelium
Hassall’s corpuscles are found in:
Thymus
Cord of billroth is seen in:
Spleen
Longest extra ocular muscle
Superior oblique
Length of fallopian tube
12 CM
Length of fallopian tube
12 CM
Arch of aorta begins and terminates at
T4 level
Arch of aorta begins and terminates at
T4 level
Most commonly paralyzed nerve
Facial nerve because of it’s intraocious route
Site of tracheostomy
Tracheal ring 2-3
Nerve supply of gluteus maximus
SUPERIOR gluteal N.
(L5 s1, s2)
Nerve supply of gluteus medius and
minimus
SUPERIOR gluteal N.
(l4, l5, Sl)
Muscle which opens Eusta-chian tube
while yawning
Tensor veti palatini
and levator veli
palatini
Most common fracture of humerus
Supracondylar
fracture
Infection of CNS spreads in inner ear
through
Cochlear Aqueduct
2/3rds of the tongue develops from
floor of the first arch
posterior 1/3rd of the tongue is from
floor of 3rd arch
epiglottis develops from
floor of the 4th arch
kidneys develop from
intermediate mesoderm
Structure overlying left kidney
Body of pancreas
bladder and urethra is formed from
endoderm
The definitive kidney, known as the metanephros, begins to develop in
5th week
when is the functional kidney formed
12th week
during what week of the gestation does gonadal differentiation happens
5th week
sex determination occurs around
7-8 weeks
Proliferation of nerve cells happens at
12-14 weeks
metencephalon forms the
pons and cerebellum
Medulla is formed from which vesicle
Myelencephalon
where does the abdominal aorta bifurcates
L4, into left and right common iliac arteries
lesser curvature of the stomach is supplied by
Left gastric artery
blood supply of the gall bladder
cystic artery, a branch of right hepatic artery
blood supply of transverse colon
middle colic artery , a branch of SMA
blood supply of ascending colon
right colic artery
temporomadibular joint is of what type
Synovial
where is elastic cartilage found
Elastic cartilage is located in the pinna of the ear, external and internal auditory tubes, epiglottis, and larynx (cuneiform cartilage).
Hyaline cartilage of respiratory tree extends up to:
Bronchi
Secondary ossification centre appears before birth at
lower end of femur
The core of the branchial arch is derived from:
Mesoderm and Neural crest cells
rostral neuropore closes on
day 25
Ovaries develop from
genital ridge
The most common type of tracheoesophageal fistula (TEF) is
Type a or Esophageal atresia with distal TEF
A palpable fluid-filled mass that is connected to the umbilicus superiorly and urinary bladder interiorly is diagnostic of the
urachal cyst
a Mullerian anomaly caused due to the defect in the formation or fusion of paired Mullerian ducts
Unicornuate uterus
Clitoris develops from
Genital tubercle
motility and maturity of sperms in done in
epididymis
Spermatogonium to spermatozoa transformation takes place in how many days
74
Primitive Streak Appear On Which Day During Embryonic Period ?
15
Cells which surround the oocyte in Graafian follicle are called:
cummulus oopherus
Pneumotaxic center is located in
upper pons