embryology and histology Flashcards Preview

Part 1 Boards Spinal > embryology and histology > Flashcards

Flashcards in embryology and histology Deck (22)
Loading flashcards...
1
Q

gives rise to all neurons and supporting cells; forms neural plate “neuroectoderm”

A

ectoderm

2
Q

induces ectoderm to form neuroectoderm (remnant IVD as “nucleus pulposus”

A

notochord

3
Q

forms neural groove which houses the spinal cord and brain vesicles

A

neural plate

4
Q

neural crest develops into (11)

A

branchial arches, PNS, schwann cells pia arachnoid meninges, sacral parasymps, spinal and autonomic ganglia, mesencephalic nucleus of V, melanocytes, bones CT of head, DRG, CN V, VII, IX, X ganglia, adrenal gland medulla

5
Q

neural plate (brain cells) develop into [MOANER]

A

macroglial cells (oligodendrocytes astroctes), neurons CNS, ependymal cells, retinal cells

6
Q

forms the lining of the digestive tube and its associated structures, division foregut/midgut; liver and pancreatic buds

A

endoderm epithelium

7
Q

glands buccal cavity, esophagus, stomach, pharyngeal pouches and pharynx

A

foregut

8
Q

duodenum, jejunum, appendix, part of transverse colon

A

midgut

9
Q

part transverse, sigmoid and descending colon, rectum and upper anal canal

A

hindgut

10
Q

urinary bladder, vagina, urethra, prostate and urethral glands (PEEPEE :P)

A

allantois

11
Q

somite cells form the

A

sclerotome –> vertebral column (cartilage and bone)

12
Q

foramen ovale becomes

A

fossa ovalis (bt interatrial septum)

13
Q

ductus arteriosus becomes

A

ligamentum arteriosum (bypasses lung pulmonary trunk to arch of aorta)

14
Q

ductus venosus becomes

A

ligamentum venosum (bypasses sinusoids of fetal liver)

15
Q

umbilical vein becomes

A

ligamentum teres (round ligament)

16
Q

umbilical arteries becomes

A

medial umbilical ligaments

17
Q

remnant of duct of allantois

A

urachus

18
Q

m: muscles of mastication and jaw closing muscles skeletal structures: malleus (meckels cartilage) incus (quadrate cartilage) CN: mandibular branch of V (V3)

A

FIRST branchial arch

19
Q

m: m of facial expression and jaw opening muslces, stylohyoid, stapedius; skeletal structures: stapes, styloid CN: facial VII

A

SECOND branchial arch

20
Q

m: stylopharyngeus skeletal structures: cornu, hyoid CN: glossopharyngeal IX

A

THIRD branchial arch

21
Q

m: pharyngeal, cricothyroid, levator palatine skeletal structures: thyroid cartilage, cricoid cartilage CN: superior laryngeal of Vagus (X)

A

FOURTH branchial arch

22
Q

m: laryngeal sk struc: arytenoid, corniculate cartilage, cuneiform cartilage CN: inferior laryngeal of Vagus X (recurrent branch)

A

SIXTH branchial arch