Embryology - Mock Finals

F. Zygotic

The period immediately after fertilization which spans first 24 hours after the “well-capacitated spermatozoon” has penetrated the “arrested secondary oocyte at Metaphase 2 of 2nd Meiosis”

A. Neonatal

B. Pre-Embryonic

C. Embryonic

D. Infancy

E. Fetal

F. Zygotic

G. Perinatal

B. Pre-Embryonic

First 2 weeks after fertilization

A. Neonatal

B. Pre-Embryonic

C. Embryonic

D. Infancy

E. Fetal

F. Zygotic

G. Perinatal

C. Embryonic

From 3rd week to 8th week of life in-utero following fertilization process.

A. Neonatal

B. Pre-Embryonic

C. Embryonic

D. Infancy

E. Fetal

F. Zygotic

G. Perinatal

E. Fetal

9th week to 9th month {or until time of birth or until approximately 38th to 40th week +/- AGE OF GESTATION (AOG)

A. Neonatal

B. Pre-Embryonic

C. Embryonic

D. Infancy

E. Fetal

F. Zygotic

G. Perinatal

A. Neonatal

Birth to 1month-old or first 28days after BIRTH.

A. Neonatal

B. Pre-Embryonic

C. Embryonic

D. Infancy

E. Fetal

F. Zygotic

G. Perinatal

D. Infancy

1month old until first 2 years of life after BIRTH

A. Neonatal

B. Pre-Embryonic

C. Embryonic

D. Infancy

E. Fetal

F. Zygotic

G. Perinatal

G. Perinatal

22nd week AOG until first 7 days after BIRTH

A. Neonatal

B. Pre-Embryonic

C. Embryonic

D. Infancy

E. Fetal

F. Zygotic

G. Perinatal

C. Cardiac Muscles of the heart

The following muscles are NEURAL CREST ECTODERM CELLS (the only set of ECTODERM-derived muscles), Except for:

A. Muscles of the pupils of the eye

B. Smooth Muscles of the blood vessels of the face, neck, and forebrain

C. Cardiac Muscles of the heart

D. Myoepithelial cells/Smooth Muscles of the Sweat Glands

E. Arrector Pili muscles

E. Sternum

The following bones are NEURAL CREST ECTODERM CELLS (the only set of ECTODERM-derived bones), Except for:

A. Bones of the face

B. Bones of the forehead

C. Bones of the middle ear (Malleus, Incus, and Stapes)

D. Hyoid bone

E. Sternum

A. Tongue

The “Placodes” will give rise to the following adult special sensory organs, EXCEPT for:

A. Tongue

B. Lens of the eye

C. Nose, nostrils, nasal cavities, and choanae

D. Inner ear (cochlea and semicircular canals)

B. SHH

Master gene for ventral-midline structures:

A. Casp-3

B. SHH

C. NKX-2.5

D. PITX-2

D. NONE OF THESE

This embryonic process will participate in the formation of 3 germ layers (e.g. Ectoderm; Endoderm; and Mesoderm):

A. Neural induction

B. Neurulation

C. Delamination

D. NONE OF THESE

A. Axial

It will participate in the formation of Nucleus Pulposus of the IV Disk and Centrum of Vertebral Bodies

A. Axial

B. Paraxial

C. Intermediate

D. Somatic Layer of Lateral Plate

E. Splanchnic Layer of Lateral Plate

B. Paraxial

It will participate in the formation of VOLUNTARY MUSCLES of the Body Wall (ventral and Dorsal); MUSCLES of the Limbs; Dermis; and Spinal Column + Ribs

A. Axial

B. Paraxial

C. Intermediate

D. Somatic Layer of Lateral Plate

E. Splanchnic Layer of Lateral Plate

C. Intermediate

It will participate in the formation of most organs of URINARY System and REPRODUCTIVE System

A. Axial

B. Paraxial

C. Intermediate

D. Somatic Layer of Lateral Plate

E. Splanchnic Layer of Lateral Plate

D. Somatic Layer of Lateral Plate

AKA “parietal layer” which will participate in the formation of BONES of the LIMBS & Parietal Membranes and Coverings of Vital Organs

A. Axial

B. Paraxial

C. Intermediate

D. Somatic Layer of Lateral Plate

E. Splanchnic Layer of Lateral Plate

E. Splanchnic Layer of Lateral Plate

AKA “visceral layer” which will participate in the formation of INVOLUNTARY MUSCLES of 5 Body Systems (to name: Digestive; Respiratory; Urinary; Reproductive; and Cardiovascular Systems)

A. Axial

B. Paraxial

C. Intermediate

D. Somatic Layer of Lateral Plate

E. Splanchnic Layer of Lateral Plate

B. Muscles of the dorsum or Back of the Trunk

What is the adult derivatives of DML Cells (Dorsomedial Layer Cells)?

A. Muscles of the ventral body wall + Muscles of the upper and lower limbs / extremities to include muscles of the face/skull

B. Muscles of the dorsum or Back of the Trunk

C. Dermis of the Human Body (Except dermis of the face and neck)

D. Vertebrae and Ribs

A. Muscles of the ventral body wall + Muscles of the upper and lower limbs / extremities to include muscles of the face/skull

What is the adult derivatives of VLL Cells (Ventrolateral Layer Cells)?

A. Muscles of the ventral body wall + Muscles of the upper and lower limbs / extremities to include muscles of the face/skull

B. Muscles of the dorsum or Back of the Trunk

C. Dermis of the Human Body (Except dermis of the face and neck)

D. Vertebrae and Ribs

C. Dermis of the Human Body (Except dermis of the face and neck)

What is the adult derivatives of Intermediate Layer Cells?

A. Muscles of the ventral body wall + Muscles of the upper and lower limbs / extremities to include muscles of the face/skull

B. Muscles of the dorsum or Back of the Trunk

C. Dermis of the Human Body (Except dermis of the face and neck)

D. Vertebrae and Ribs

D. Vertebrae and Ribs

What is the adult derivatives of Sclerotome Cells?

A. Muscles of the ventral body wall + Muscles of the upper and lower limbs / extremities to include muscles of the face/skull

B. Muscles of the dorsum or Back of the Trunk

C. Dermis of the Human Body (Except dermis of the face and neck)

D. Vertebrae and Ribs

A. Pharyngeal Gut of the Foregut

This gut segment will transform into: Pharynx

A. Pharyngeal Gut of the Foregut

B. Foregut Proper

C. Midgut, Cephalic Limb

D. Midgut, Caudal Limb

E. Hindgut

B. Foregut Proper

This gut segment will transform into: Esophagus; Stomach; First part of the Duodenum; Second part of the Duodenum until level of Ampulla of Vater; and Liver; Biliary Tree with Gallbladder; Pancreas and Spleen

A. Pharyngeal Gut of the Foregut

B. Foregut Proper

C. Midgut, Cephalic Limb

D. Midgut, Caudal Limb

E. Hindgut

C. Midgut, Cephalic Limb

This gut segment will transform into: Second part of the Duodenum after the Ampulla of Vater; Third part and Fourth part of the Duodenum; Jejunum; Proximal 3rd of Ileum until Meckel’s Diverticulum (if present)

A. Pharyngeal Gut of the Foregut

B. Foregut Proper

C. Midgut, Cephalic Limb

D. Midgut, Caudal Limb

E. Hindgut

D. Midgut, Caudal Limb

This gut segment will transform into: Distal 2/3rd’s of Ileum; Cecum; Appendix; Ascending Colon, Proximal 2/3rd’s of Transverse Colon until “watershed area”

A. Pharyngeal Gut of the Foregut

B. Foregut Proper

C. Midgut, Cephalic Limb

D. Midgut, Caudal Limb

E. Hindgut

E. Hindgut

This gut segment will transform into: Distal 1/3rd of Transverse Colon; Descending Colon; Sigmoid Colon; Rectum; and Upper ½ of the Anal Canal

A. Pharyngeal Gut of the Foregut

B. Foregut Proper

C. Midgut, Cephalic Limb

D. Midgut, Caudal Limb

E. Hindgut

A. Respiratory Diverticulum

What is the separators of Pharyngeal Gut versus Foregut?

A. Respiratory Diverticulum

B. Ampulla of Vater of Duodenum

C. “Watershed area” of Transverse Colon

B. Ampulla of Vater of Duodenum

What is the separators of Foregut versus Midgut?

A. Respiratory Diverticulum

B. Ampulla of Vater of Duodenum

C. “Watershed area” of Transverse Colon

C. “Watershed area” of Transverse Colon

What is the separators of Midgut versus Hindgut?

A. Respiratory Diverticulum

B. Ampulla of Vater of Duodenum

C. “Watershed area” of Transverse Colon

A. Stomodeum

This embryonic gut segment will transform into: the Mouth or Oral cavity

A. Stomodeum

B. Proctodeum

C. Endoderm

D. Mesoderm

B. Proctodeum

This embryonic gut segment will transform into: Lower 1/3 of Anal Canal

A. Stomodeum

B. Proctodeum

C. Endoderm

D. Mesoderm

C. Endoderm

This embryonic gut segment will transform into: Spleen

A. Stomodeum

B. Proctodeum

C. Endoderm

D. Mesoderm

D. Mesoderm

This embryonic gut segment will transform into: Liver, Pancreas, and Gallbladder + Biliary Tact

A. Stomodeum

B. Proctodeum

C. Endoderm

D. Mesoderm

A. Pronephros

The first, most primitive; rudimentary; non-functional embryonic kidney system

A. Pronephros

B. Mesonephros

C. Metanephros

B. Mesonephros

The second, largest and the longest embryonic kidney system but will only function for short period of time

A. Pronephros

B. Mesonephros

C. Metanephros

C. Metanephros

The third and last, adult-type, definitive, and permanent-type of kidney system

A. Pronephros

B. Mesonephros

C. Metanephros

A. Ureter

What is the adult derivative of Elongated part of the Ureteric Bud?

A. Ureter

B. Renal Pelvis

C. Major Calyx

D. Minor Calyx

E. Renal Pyramid of Malpighi

F. Degenerate

G. Collecting tubules of Bellini

B. Renal Pelvis

What is the adult derivative of Dilated distal end of Ureteric Bud?

A. Ureter

B. Renal Pelvis

C. Major Calyx

D. Minor Calyx

E. Renal Pyramid of Malpighi

F. Degenerate

G. Collecting tubules of Bellini

C. Major Calyx

What is the adult derivative of 1st Gen of Subdivision?

A. Ureter

B. Renal Pelvis

C. Major Calyx

D. Minor Calyx

E. Renal Pyramid of Malpighi

F. Degenerate

G. Collecting tubules of Bellini

D. Minor Calyx

What is the adult derivative of 2nd absorbing 3rd and 4th Gen of Subdivision?

A. Ureter

B. Renal Pelvis

C. Major Calyx

D. Minor Calyx

E. Renal Pyramid of Malpighi

F. Degenerate

G. Collecting tubules of Bellini

E. Renal Pyramid of Malpighi

What is the adult derivative of 5th absorbing the 6th to 12 or more Gen of Sub?

A. Ureter

B. Renal Pelvis

C. Major Calyx

D. Minor Calyx

E. Renal Pyramid of Malpighi

F. Degenerate

G. Collecting tubules of Bellini

F. Degenerate

What is the adult derivative of The absorbed 3rd and 4th Gen of Sub?

A. Ureter

B. Renal Pelvis

C. Major Calyx

D. Minor Calyx

E. Renal Pyramid of Malpighi

F. Degenerate

G. Collecting tubules of Bellini

G. Collecting tubules of Bellini

What is the adult derivative of The absorbed 6th to 12 or more Gen of Sub?

A. Ureter

B. Renal Pelvis

C. Major Calyx

D. Minor Calyx

E. Renal Pyramid of Malpighi

F. Degenerate

G. Collecting tubules of Bellini

A. Distal half of Fallopian Tube

This embryonic origin will transform into: Upper 3rd part of the Mullerian Ducts

A. Distal half of Fallopian Tube

B. Proximal half of Fallopian Tube

C. Uterus; Cervix of the Uterus and only the Upper 3rd of the Vagina Canal

D. Distal 2/3rds of the Vaginal Canal plus Hymen

B. Proximal half of Fallopian Tube

This embryonic origin will transform into: Middle 3rd part of the Mullerian Ducts

A. Distal half of Fallopian Tube

B. Proximal half of Fallopian Tube

C. Uterus; Cervix of the Uterus and only the Upper 3rd of the Vagina Canal

D. Distal 2/3rds of the Vaginal Canal plus Hymen

C. Uterus; Cervix of the Uterus and only the Upper 3rd of the Vagina Canal

This embryonic origin will transform into: Lower 3rd part of the Mullerian Ducts (called “unaleria”)

A. Distal half of Fallopian Tube

B. Proximal half of Fallopian Tube

C. Uterus; Cervix of the Uterus and only the Upper 3rd of the Vagina Canal

D. Distal 2/3rds of the Vaginal Canal plus Hymen

D. Distal 2/3rds of the Vaginal Canal plus Hymen

This embryonic origin will transform into: Below and after (or outside) Mullerian Ducts called “sinovaginal bulbs” NOTE: these bulbs are NOT considered parts of the Mullerian Ducts

A. Distal half of Fallopian Tube

B. Proximal half of Fallopian Tube

C. Uterus; Cervix of the Uterus and only the Upper 3rd of the Vagina Canal

D. Distal 2/3rds of the Vaginal Canal plus Hymen

A. Testicular Cords inside testis/male gonad OUTSIDE Wolffian Ducts

What is the anlagen of this male adult derivative: Seminiferous tubules and Rete testis?

A. Testicular Cords inside testis/male gonad OUTSIDE Wolffian Ducts

B. Wolffian Ducts

B. Wolffian Ducts

What is the anlagen of this male adult derivative: Ductuli efferentes; Epididymis; Paradidymis; Vas deferens; Seminal Vesicles; Ejaculatory ducts?

A. Testicular Cords inside testis/male gonad OUTSIDE Wolffian Ducts

B. Wolffian Ducts

A. Mandible + Incus + Malleus

Pharyngeal Arch #1 will become?

A. Mandible + Incus + Malleus

B. Stapes + Styloid process + Superior Half of Hyoid Body and Lesser Cornua of Hyoid

C. Inferior Half of Hyoid Body and Greater Cornua of Hyoid

D. Thyroid and Epiglottic cartilages

E. NO ADULT DERIVATIVES

F. Cricoid; Arytenoid; Cuneiform; and Corniculate cartilages

B. Stapes + Styloid process + Superior Half of Hyoid Body and Lesser Cornua of Hyoid

Pharyngeal Arch #2 will become?

A. Mandible + Incus + Malleus

B. Stapes + Styloid process + Superior Half of Hyoid Body and Lesser Cornua of Hyoid

C. Inferior Half of Hyoid Body and Greater Cornua of Hyoid

D. Thyroid and Epiglottic cartilages

E. NO ADULT DERIVATIVES

F. Cricoid; Arytenoid; Cuneiform; and Corniculate cartilages

C. Inferior Half of Hyoid Body and Greater Cornua of Hyoid

Pharyngeal Arch #3 will become?

A. Mandible + Incus + Malleus

B. Stapes + Styloid process + Superior Half of Hyoid Body and Lesser Cornua of Hyoid

C. Inferior Half of Hyoid Body and Greater Cornua of Hyoid

D. Thyroid and Epiglottic cartilages

E. NO ADULT DERIVATIVES

F. Cricoid; Arytenoid; Cuneiform; and Corniculate cartilages

D. Thyroid and Epiglottic cartilages

Pharyngeal Arch #4 will become?

A. Mandible + Incus + Malleus

B. Stapes + Styloid process + Superior Half of Hyoid Body and Lesser Cornua of Hyoid

C. Inferior Half of Hyoid Body and Greater Cornua of Hyoid

D. Thyroid and Epiglottic cartilages

E. NO ADULT DERIVATIVES

F. Cricoid; Arytenoid; Cuneiform; and Corniculate cartilages

E. NO ADULT DERIVATIVES

Pharyngeal Arch #5 will become?

A. Mandible + Incus + Malleus

B. Stapes + Styloid process + Superior Half of Hyoid Body and Lesser Cornua of Hyoid

C. Inferior Half of Hyoid Body and Greater Cornua of Hyoid

D. Thyroid and Epiglottic cartilages

E. NO ADULT DERIVATIVES

F. Cricoid; Arytenoid; Cuneiform; and Corniculate cartilages

F. Cricoid; Arytenoid; Cuneiform; and Corniculate cartilages

Pharyngeal Arch #6 will become?

A. Mandible + Incus + Malleus

B. Stapes + Styloid process + Superior Half of Hyoid Body and Lesser Cornua of Hyoid

C. Inferior Half of Hyoid Body and Greater Cornua of Hyoid

D. Thyroid and Epiglottic cartilages

E. NO ADULT DERIVATIVES

F. Cricoid; Arytenoid; Cuneiform; and Corniculate cartilages

A. First

What pharyngeal arch is this derived from: Muscles of Mastication + Tensor Veli Palatini + Tensor Tympani + Ant. Digastricus + Mylohyoid?

A. First

B. Second

C. Third

D. Fourth

E. Fifth

F. Sixth

B. Second

What pharyngeal arch is this derived from: Muscles of Facial Expression + Platysma + Post. Digastricus + Stylohyoid?

A. First

B. Second

C. Third

D. Fourth

E. Fifth

F. Sixth

C. Third

What pharyngeal arch is this derived from: Stylopharyngeus?

A. First

B. Second

C. Third

D. Fourth

E. Fifth

F. Sixth

D. Fourth

What pharyngeal arch is this derived from: Soft Palate muscles (EXCEPT Tensor Veli Palatini) + Cricothyroideus?

A. First

B. Second

C. Third

D. Fourth

E. Fifth

F. Sixth

E. Fifth

What pharyngeal arch is this derived from: NONE DUE TO EARLY OBLITERATION?

A. First

B. Second

C. Third

D. Fourth

E. Fifth

F. Sixth

F. Sixth

What pharyngeal arch is this derived from: All intrinsic laryngeal muscles EXCEPT Cricothyroideus?

A. First

B. Second

C. Third

D. Fourth

E. Fifth

F. Sixth

A. Tympanic Cavity and Eustachian Tube

Pharyngeal pouch #1 will become?

A. Tympanic Cavity and Eustachian Tube

B. Palatine Tonsils

C. Dorsal Wing: Inferior Parathyroid Glands Ventral Wing: Thymus

D. Dorsal Wing: Superior Parathyroid Glands Ventral Wing: Ultimobranchial Body

B. Palatine Tonsils

Pharyngeal pouch #2 will become?

A. Tympanic Cavity and Eustachian Tube

B. Palatine Tonsils

C. Dorsal Wing: Inferior Parathyroid Glands Ventral Wing: Thymus

D. Dorsal Wing: Superior Parathyroid Glands Ventral Wing: Ultimobranchial Body

C. Dorsal Wing: Inferior Parathyroid Glands Ventral Wing: Thymus

Pharyngeal pouch #3 will become?

A. Tympanic Cavity and Eustachian Tube

B. Palatine Tonsils

C. Dorsal Wing: Inferior Parathyroid Glands Ventral Wing: Thymus

D. Dorsal Wing: Superior Parathyroid Glands Ventral Wing: Ultimobranchial Body

D. Dorsal Wing: Superior Parathyroid Glands Ventral Wing: Ultimobranchial Body

Pharyngeal pouch #4 will become?

A. Tympanic Cavity and Eustachian Tube

B. Palatine Tonsils

C. Dorsal Wing: Inferior Parathyroid Glands Ventral Wing: Thymus

D. Dorsal Wing: Superior Parathyroid Glands Ventral Wing: Ultimobranchial Body

A. Pseudoglandular Period

Period where Trachea; Primary; Secondary; and Tertiary Bronchi; and Terminal Bronchioles start-to-form

A. Pseudoglandular Period

B. Canalicular Period

C. Terminal Sac Period

D. Alveolar Period / Post-Natal Period

B. Canalicular Period

Period where Respiratory Bronchioles and Alveolar Ducts start-to-form

A. Pseudoglandular Period

B. Canalicular Period

C. Terminal Sac Period

D. Alveolar Period / Post-Natal Period

C. Terminal Sac Period

Period where Alveolar Sacs and 1/6th of Alveoli start-to-form

A. Pseudoglandular Period

B. Canalicular Period

C. Terminal Sac Period

D. Alveolar Period / Post-Natal Period

D. Alveolar Period / Post-Natal Period

Period where the remaining 5/6th’s of Alveoli continue to-form

A. Pseudoglandular Period

B. Canalicular Period

C. Terminal Sac Period

D. Alveolar Period / Post-Natal Period

A. Maxillary Artery

Aortic Arch #1 will become?

A. Maxillary Artery

B. Stapedial Artery + Hyoidal Artery

C. Common Carotid + External Carotid Arteries

D. Subclavian artery Right + Arch of the Aorta

E. NO ADULT DERIVATIVES

F. Pulmonary Arteries + Ductus Arteriosus

B. Stapedial Artery + Hyoidal Artery

Aortic Arch #2 will become?

A. Maxillary Artery

B. Stapedial Artery + Hyoidal Artery

C. Common Carotid + External Carotid Arteries

D. Subclavian artery Right + Arch of the Aorta

E. NO ADULT DERIVATIVES

F. Pulmonary Arteries + Ductus Arteriosus

C. Common Carotid + External Carotid Arteries

Aortic Arch #3 will become?

A. Maxillary Artery

B. Stapedial Artery + Hyoidal Artery

C. Common Carotid + External Carotid Arteries

D. Subclavian artery Right + Arch of the Aorta

E. NO ADULT DERIVATIVES

F. Pulmonary Arteries + Ductus Arteriosus

D. Subclavian artery Right + Arch of the Aorta

Aortic Arch #4 will become?

A. Maxillary Artery

B. Stapedial Artery + Hyoidal Artery

C. Common Carotid + External Carotid Arteries

D. Subclavian artery Right + Arch of the Aorta

E. NO ADULT DERIVATIVES

F. Pulmonary Arteries + Ductus Arteriosus

E. NO ADULT DERIVATIVES

Aortic Arch #5 will become?

A. Maxillary Artery

B. Stapedial Artery + Hyoidal Artery

C. Common Carotid + External Carotid Arteries

D. Subclavian artery Right + Arch of the Aorta

E. NO ADULT DERIVATIVES

F. Pulmonary Arteries + Ductus Arteriosus

F. Pulmonary Arteries + Ductus Arteriosus

Aortic Arch #6 will become?

A. Maxillary Artery

B. Stapedial Artery + Hyoidal Artery

C. Common Carotid + External Carotid Arteries

D. Subclavian artery Right + Arch of the Aorta

E. NO ADULT DERIVATIVES

F. Pulmonary Arteries + Ductus Arteriosus

A. Blastema

It will become part of the adult-metanephric “kidney flesh”

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

B. Cloaca

It will become the “urinary bladder” and “rectum + upper half of anal canal” of the hindgut

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

D. Proctodeum

It will become the “lower half of the anal canal”

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

E. Stomodeum

It will become the “mouth” or “oral cavity”

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

F. Allantois

This is the first external, extraembryonic, endodermal lined kidney system that will become the “urachus” before time-ofbirth

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

G. Urachus

It will become the “Median Umbilical Ligament” after-birth

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

C. Neural tube

It will become the “Brain” and “Spinal Cord”

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

H. Notochord

It will become the “Nucleus Pulposus” of the Intervertebral Disk”

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

I. Ultimobranchial Body

It will become source of C-Cells of Thyroid Gland which synthesize and secrete Calcitonin

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

K. Mantle Layer

Gray Matter

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

J. Marginal Layer

White Matter

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

L. Auricular Hillocks

It will become the “pinna”/” auricle” of the outer ear

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

M. Placodes

Nasal cavities of the nose, lens of the eyes, inner ear or ear unit

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

N. Rhombomeres

Motor components of Cranial Nerves III to XII (Except CN VIII)

A. Blastema

B. Cloaca

C. Neural tube

D. Proctodeum

E. Stomodeum

F. Allantois

G. Urachus

H. Notochord

I. Ultimobranchial Body

J. Marginal Layer

K. Mantle Layer

L. Auricular Hillocks

M. Placodes

N. Rhombomeres

E. Myelencephalon

What is the primitive brain origin of Medulla Oblongata?

A. Telencephalon

B. Diencephalon

C. Mesencephalon

D. Metencephalon

E. Myelencephalon

D. Metencephalon

What is the primitive brain origin of Pons + Cerebellar Hemispheres?

A. Telencephalon

B. Diencephalon

C. Mesencephalon

D. Metencephalon

E. Myelencephalon

A. Telencephalon

What is the primitive brain origin of Cerebral Hemispheres?

A. Telencephalon

B. Diencephalon

C. Mesencephalon

D. Metencephalon

E. Myelencephalon

C. Mesencephalon

What is the primitive brain origin of Midbrain?

A. Telencephalon

B. Diencephalon

C. Mesencephalon

D. Metencephalon

E. Myelencephalon

B. Diencephalon

What is the primitive brain origin of Thalamus, Hypothalamus, Subthalamus, Epithalamus?

A. Telencephalon

B. Diencephalon

C. Mesencephalon

D. Metencephalon

E. Myelencephalon

A. Cornea

What is the adult derivative of this process: Hydration → Dehydration?

A. Cornea

B. Lens

C. Eyelids

D. Retina

B. Lens

What is the adult derivative of this process: Self-Invagination from Placode to Vesicle?

A. Cornea

B. Lens

C. Eyelids

D. Retina

C. Eyelids

What is the adult derivative of this process: Open → Close → Open?

A. Cornea

B. Lens

C. Eyelids

D. Retina

D. Retina

What is the adult derivative of this process: Simultaneous Vertical and Horizontal Growth?

A. Cornea

B. Lens

C. Eyelids

D. Retina