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Elite Brainiacs > Embryology > Flashcards

Embryology Flashcards

1
Q

_________ is responsible for excretion in fetal life

A

Placenta

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2
Q

During the 5 wk the brain divide into _____&_______

A

Telencephalon and diencephalon

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3
Q

The frontonasal process arise from the _____ crest

A

Neural

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4
Q

______is a rudimentary & non functional part of a developing kidney

A

Pronephrons

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5
Q

The collecting duct of permanent kidney form from the

A

Ureteric buds

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6
Q

What is the derivatives of the 2nd cartilage

A

Stapes

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7
Q

—–_——is the artery of the first arch

A

Maxillary artery

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8
Q

What is the nerve of the 6th arch

A

Recurrent laryngeal nerve

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9
Q

The development of the tounge begins with the growth of a medial swelling from the first pharngeal arch know as

A

Tuberculum impar

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10
Q

The mesoderm of the second third and fourth phrangeal arch form a medial swelling known as

A

Hypobrancial emminence

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11
Q

The extrinsic muscle of the tounge are responsible for

A

Movement in all directions

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12
Q

By the tenth week of development of the face the intermaxillary process will form the ______

A

Nasal bridge and the philtrum of the upper lip

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13
Q

The oropharengeal membrane can already be seen on the embryo as early as week 3’between the enlarging areas of the

A

Heart and brain

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14
Q

__________is the two endodermal thickening that appear at the end of the fourth week of facial development on the frontonasal process

A

Nasal placode

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15
Q

The excretory unit originate from the

A

Metanephric mesoderm

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16
Q

At birth the are approxim ______nephron

A

1 million

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17
Q

Urin production begins at what week of intrauterine life

A

10th week

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18
Q

__________is a clinical condition where kidney fuse together and refus to ascend

A

Horseshoe kidney

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19
Q

The proximal end of the nephron forms the

A

Bowman capsule

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20
Q

Extrinsic muscle of the tounge are

A

Genioglossus
Platoglossus
Styloglossus
Hyoglossus

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21
Q

Cranial neuropore closes by day

A

25thday

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22
Q

Condensation of the neural plate leads to

A

Neural tube

23
Q

Neuroectodermal induction activities is caused by

A

Notochord

24
Q

Nervous system is developed from the

A

Embryonic period

25
Q

Neural tube forms

A

Caudal and crainal part

26
Q

The autonomic nervous system is formed by

A

Brainstem and spinal cord

27
Q

________cells secrete surfactant

A

Type II alveolar cells or pneumocyte

28
Q

The body center that command control movement and thought

A

Brain

29
Q

Respiratory element such as alveoli begin forming at what stage

A

Canalicular stage

30
Q

The space between the dura matter an arachnoid matter is called

A

Subdura space

31
Q

Respiratory distress syndrome is caused by

A

Surfactant deficiency

32
Q

______give rise to small s shaped vesicles

A

Renal vesicles

33
Q

The Meta nephrons recieve arterial supply from where

A

Pelvic branch of aorta

34
Q

In female the cranial part of the urethra give rise to the ______

A

Urethral and para urethral gland

35
Q

Definitive urogenital bsinus develop into ________

A

Penile urethra

36
Q

Buds of the urethra forms ———-

A

Prostate gland

37
Q

Seminal vesicles are formed by

A

Budding from the ductus deferens

38
Q

Muscle of the tounge originate from ———

A

Occipital somites

39
Q

Respiratory system originate from

A

Endodermal layer

40
Q

What is respiratory diverticulum and where does it develop from

A

Develop from a central outgrowth of the cranial part of the foregut

41
Q

Trachea develop from where?

A

The laryngotracheal diverticulum

42
Q

Which cells produce cerebrospinal fluid

A

Ependymal cells of the choroid process

43
Q

Procephalon give rise to

A

Forebrain

44
Q

Mesencephalon give rise to

A

Mid brain

45
Q

Rhombocephalon give rise to

A

Hind brain

46
Q

Rhombocephalon is divided into

A

Myelencephalon and metacephalon

47
Q

Hind brain consist of

A

Pons
Medulla
Cerebelum

48
Q

———–is a condition in which the caudal neuropore does not close between the 27–28 day

A

Spina bifida

49
Q

________is a condition in which the cranial neuropore does not close after 25_28 days

A

Anecephaly

50
Q

The space between the arachnoid matter and the pia matter is called

A

Sub arachnoid space

51
Q

The 3 layers that cover the brain or spinal cord are called

A

Meninges

52
Q

3 layers of the meninges are

A

Pia matter
Arachnoid matter
Dura matter

53
Q

___________is a condition involving tracheal narrowing caused by anterior deviation of tracheosophageal septum

A

Tracheal stenosis

54
Q

__________is an abnormal connection between trachea and oesophagus or result of incomplete fusion of tracheosophageal septum

A

Tracheosophageal fistula

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