Embryology final practice Q's

What is the process of formation and development of specialized generative cells called?

A. Salutogenesis

B. Pathogenesis

C. Gametogenesis

D. Blastulation

Gametogenesis

In the process of Gametogenesis how many viable sex cells are formed in both males and females, respectively?

A. 2;1

B. 2;1

C. 4;1

D. 4;2

4;1

What is the biggest contributor to the number of viable female gametes?

A. Genetic Material

B. Cytoplasm distribution

C. Nondisjunction

D. None of the above

Cytoplasm distribution

The process of migration in the egg is?

A. Active

B. Passive

C. Osmotic

D. Meiotic

Passive

What is the proper term given to the development of too many chromosomes?

A. Monosomy

B. Trisomy

C. Polysemy

D. None of the above

Trisomy

Which of the following causes abnormal; gametogenesis?

A. Non disjunction

B. Disjunction

C. Replication

D. Nonreplication

Non disjunction

What is the most common result of abnormal gametogenesis discussed in class?

A. Spina bifida

B. Apoptosis

C. Gametogenesis

D. Down's syndrome

Down's syndrome

In normal pregnancy and implantation, the endometrium is the site of implantation. If implantation occurs in any other area than the endometrium, what is this pregnancy called?

A. Ectopic

B. Absent

C. Apoptotic

D. None of the above

Ectopic

When is meiosis 2 complete in the female?

A. Preconception

B. Birth

C. Ovulation

D. Fertilization

Fertilization

Based on function, FSH has an inverse relationship with which other hormone involved in the normal menstruated cycle?

A. Progesterone

B. Estrogen

C. GnRH

D. LH

Estrogen

What structure is responsible for the secretion of progesterone?

A. Ovary

B. Hypothalamus

C. Anterior pituitary

D. Corpus luteum

Corpus luteum

When is the best time to educate a couple who is planning or in the process of starting a family?

A. Pre conception

B. Week 1-4

C. Week 5-9

D. Following birth

Pre conception

Which of the following cellular layers is responsible for the burrowing into the endometrium?

A. Cytotrophoblasts

B. Syncytiotrophoblasts

C. Hypoblasts

D. None of the above

Syncytiotrophoblasts

Which of the following structures is believed to be a primary organizer and inducer of morphogenesis?

A. Somites

B. Metanephric Blastema

C. Notochord

D. None of the above

Notochord

During week 3 a trilaminar disk develops. What is the name of this part of human development?

A. Fertilization

B. Blastulation

C. Gastrulation

D. Neurolation

Gastrulation

The inferior mesenteric artery gives blood supple to which of the following?

A. Distal duodenum

B. Distal transverse colon

C. Pancreas

D. None of the above

Distal transverse colon

The development of the midgut gives rise to which of the following?

A. Pancreas

B. Distal duodenum

C. Distal transverse colon

D. Stomach

Distal duodenum

The dorsal mesentery becomes the?

A. Greater omentum

B. Lesser omentum

C. Faliciform ligament

D. Round ligament

Greater omentum

The distal duodenum is supplied blood by the:

A. Celiac trunk

B. Superior mesenteric artery

C. Inferior mesenteric artery

D. None of the above

Superior mesenteric artery

The left vagus nerve supplies which part of the developed stomach?

A. Right

B. Left

C. Front

D. Back

Front

Which of the following is a radiological sign for tetralogy of fallot?

A. She sign

B. Foot sign

C. Boot sign

D. None of the above

Boot sign

Blood from the inferior vena cava reaches the right atrium following the anastomoses with the umbilical vein via what fetal adaptation?

A. Ductus arteriosus

B. Ductus deferens

C. Ductus hepatis

D. Ductus venosus

Ductus venosus

Blood is transferred from the aorta to the pulmonary trunk via which fetal adaption?

A. Ductus arteriosus

B. Ductus deferens

C. Ductus hepatis

D. Ductus venosus

Ductus arteriosus

Insufficient elongation of the esophagus causes:

A. Pyloric sphincter rupture

B. SIDS

C. Congenital hiatal hernia

Tongue tie

Congenital hiatal hernia

Which pharyngeal arch does not contribute to the fully developed fetus?

A. I

B. II

C. V

D. VI

V

A patient walks into your office complaining of facial numbness and tingling. Upon examination you notice there is asymmetrical facial expression. What pharyngeal arch is the problem most likely associated with?

A. I

B. II

C. V

D. VI

II

A patient presents with the inability to distinguish between sharp and dull sensations on the face and has noticed the reduction in the ability to comfortable bite down on their food. Which pharyngeal arch would you suspect is associated with this issue?

A. I

B. II

C. V

D. VI

I

The heart does not have the ability to rhythmically beat prior to nervous system development and innervation.

True

False

False

The laryngeal cartilages develop from mesenchyme that is derived from:

A. Endoderm

B. Mesoderm

C. Ectoderm

D. Neural crest

Neural crest

The visceral pleura of the lung is derived from:

A. Endoderm

B. Splanchnic mesoderm

C. Somatic mesoderm

D. Ectoderm

Splanchnic mesoderm

During which of the following stages is respiration not possible?

A. Psuedoglandular period

B. Canalicular period

C. Terminal sac stage

D. Alveolar period

Psuedoglandular period

The distal part of the glans penis is derived from which of the following germ layers?

A. Endoderm

B. Mesoderm

C. Ectoderm

D. None of the above

Ectoderm

Which of the following plays a role on the development of the male reproductive system?

A. Mesonephric ducts

B. Paramesonephric ducts

Mesonephric ducts

Testosterone induces the masculinization of the external genitalia.

True

False

True

Which of the following is contained in the inguinal canal of the female?

A. Broad ligament

B. Round ligament

C. Ovarian ligament

D. None of the above

Round ligament

The part of the sperm containing proteolytic enzymes to digest the Zona pellucida is the:

A. Capacitor

B. Head

C. Corona

D. Acrosome

Acrosome

Haploid nuclei that fuse at fertilization are called:

A. Homunculi

B. Centrioles

C. Pronuclei

D. Nucleoli

Pronuclei

The most common site of implantation outside of the uterus is called:

A. Ovary

B. Uterine tube

C. Mesentery

D. Internal os

Uterine tube

The first two intraembryonic germ layers to differentiate are the:

A. ectoderm and hypoblast

B. epiblast and hypoblast

C. ectoderm and endoderm

D. ectoderm and mesoderm

Ectoderm and mesoderm

The primitive streak first appears at the beginning of week:

A. 1

B. 2

C. 3

D. 4

3

Almost all of the internal organs are well laid down by:

A. Month 1

B. Month 2

C. Month 3

D. Month 4

Month 2

When chronic villi become vascularized they are called?

A. Branch villi

B. Stem villi

C. Tertiary villi

D. Anchoring villi

Tertiary villi

The most important region of the decidua for the nourishment of the concepts is the decidua ____.

A. Basalis

B. Parietals

C. Capsularis

D. Leave

Basalis

The notochord is replaced by the:

A. Spinal canal

B. Dorsal roots

C. Nucleus pulposus

D. Spinal cord

Nucleus pulposus

The fact that general and special sensory information from the posterior part of the tongue is carried by the Glossopharyngeal nerve indicates that this part of the tongue is from brachial arch ___:

A. I

B. II

C. III

D. IV

III

The heart is derived from:

A. Splanchnic mesoderm

B. Somatic mesoderm

C. Septum transversum

D. Paraxial mesoderm

Splanchnic mesoderm

Which of the following is most closely associated with the ligamentum teres hepatis?

A. Umbilical vein

B. Umbilical artery

C. Vitelline vein

D. Third aortic arch

Umbilical vein

Mickel's diverticula is an adult remnant of the:

A. Urachus

B. Hindgut

C. Pars cystica

D. Vitelline duct

Vitelline duct

The embryonic origin(s) of the labia minora is:

A. Urethral folds

B. Genital tubercle

C. Genital swelling

D. Cloacal membrane

Urethral folds

The optic nerve is derived from what embryonic tissue?

A. Neural crest

B. Ectoderm

C. Endoderm

D. Mesoderm

Ectoderm

The cardiovascular system is derived from what?

Lateral plate

The urogenital system is derived from what?

Intermediate mesoderm

The somite is derived from what?

Paraxial mesoderm

The pronephros nerve innervates what?

Kidney

What is the first functional kidney?

Mesonephros

The metanephros gives rise to what?

Adult kidney

The mesonephric duct gives rise to what?

Parts of the male reproductive system

What does the paramesonephric give rise to?

Parts of the female reproductive system

Sclerotome gives rise to what?

Vertebrae and ribs

Myotomes give side to what?

Muscle

Dermatomes develop into?

Dermal connective tissue

The epaxial gives rise to what?

Back muscles

Hypaxial gives rise to what?

Ventral and lateral muscles

Epaxial is innervated by what?

Dorsal rami

Hypaxial is innervated by what?

Ventral rami

Flat bones and clavicle are formed via?

Intramembranous ossification

Long bones are developed via?

Endochondral ossification

Interstitial cells of leydig secrete?

Androgenic hormones

Testosterone stimulates mesonephric ducts which give rise to?

Ductus deferens, seminal gland, and ejaculatory duct.

Epidermis is derived from?

Ectoderm

Dermis is derived from?

Mesoderm

Hair, nail, sweat gland, sebaceous gland, and mammary glands are all derived from?

Ectoderm

Growth and maturation of the limbs occurs along?

Proximal-distal, anterior - posterior, dorsal - ventral pattern.