Embryology

Question 1

_________ is responsible for excretion in fetal life

Answer 1

Placenta

Question 2

During the 5 wk the brain divide into _____&_______

Answer 2

Telencephalon and diencephalon

Question 3

The frontonasal process arise from the _____ crest

Answer 3

Neural

Question 4

______is a rudimentary & non functional part of a developing kidney

Answer 4

Pronephrons

Question 5

The collecting duct of permanent kidney form from the

Answer 5

Ureteric buds

Question 6

What is the derivatives of the 2nd cartilage

Answer 6

Stapes

Question 7

—–_——is the artery of the first arch

Answer 7

Maxillary artery

Question 8

What is the nerve of the 6th arch

Answer 8

Recurrent laryngeal nerve

Question 9

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

Answer 9

Tuberculum impar

Question 10

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

Answer 10

Hypobrancial emminence

Question 11

The extrinsic muscle of the tounge are responsible for

Answer 11

Movement in all directions

Question 12

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

Answer 12

Nasal bridge and the philtrum of the upper lip

Question 13

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

Answer 13

Heart and brain

Question 14

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

Answer 14

Nasal placode

Question 15

The excretory unit originate from the

Answer 15

Metanephric mesoderm

Question 16

At birth the are approxim ______nephron

Answer 16

1 million

Question 17

Urin production begins at what week of intrauterine life

Answer 17

10th week

Question 18

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

Answer 18

Horseshoe kidney

Question 19

The proximal end of the nephron forms the

Answer 19

Bowman capsule

Question 20

Extrinsic muscle of the tounge are

Answer 20

Genioglossus
Platoglossus
Styloglossus
Hyoglossus

Question 21

Cranial neuropore closes by day

Answer 21

25thday

Question 22

Condensation of the neural plate leads to

Answer 22

Neural tube

Question 23

Neuroectodermal induction activities is caused by

Answer 23

Notochord

Question 24

Nervous system is developed from the

Answer 24

Embryonic period

Question 25

Neural tube forms

Answer 25

Caudal and crainal part

Question 26

The autonomic nervous system is formed by

Answer 26

Brainstem and spinal cord

Question 27

________cells secrete surfactant

Answer 27

Type II alveolar cells or pneumocyte

Question 28

The body center that command control movement and thought

Answer 28

Brain

Question 29

Respiratory element such as alveoli begin forming at what stage

Answer 29

Canalicular stage

Question 30

The space between the dura matter an arachnoid matter is called

Answer 30

Subdura space

Question 31

Respiratory distress syndrome is caused by

Answer 31

Surfactant deficiency

Question 32

______give rise to small s shaped vesicles

Answer 32

Renal vesicles

Question 33

The Meta nephrons recieve arterial supply from where

Answer 33

Pelvic branch of aorta

Question 34

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

Answer 34

Urethral and para urethral gland

Question 35

Definitive urogenital bsinus develop into ________

Answer 35

Penile urethra

Question 36

Buds of the urethra forms ----------

Answer 36

Prostate gland

Question 37

Seminal vesicles are formed by

Answer 37

Budding from the ductus deferens

Question 38

Muscle of the tounge originate from ---------

Answer 38

Occipital somites

Question 39

Respiratory system originate from

Answer 39

Endodermal layer

Question 40

What is respiratory diverticulum and where does it develop from

Answer 40

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

Question 41

Trachea develop from where?

Answer 41

The laryngotracheal diverticulum

Question 42

Which cells produce cerebrospinal fluid

Answer 42

Ependymal cells of the choroid process

Question 43

Procephalon give rise to

Answer 43

Forebrain

Question 44

Mesencephalon give rise to

Answer 44

Mid brain

Question 45

Rhombocephalon give rise to

Answer 45

Hind brain

Question 46

Rhombocephalon is divided into

Answer 46

Myelencephalon and metacephalon

Question 47

Hind brain consist of

Answer 47

Pons Medulla Cerebelum

Question 48

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

Answer 48

Spina bifida

Question 49

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

Answer 49

Anecephaly

Question 50

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

Answer 50

Sub arachnoid space

Question 51

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

Answer 51

Meninges

Question 52

3 layers of the meninges are

Answer 52

Pia matter Arachnoid matter Dura matter

Question 53

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

Answer 53

Tracheal stenosis

Question 54

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

Answer 54

Tracheosophageal fistula