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Embryonic Development of the Oropharynx and Branchial Arches, Quizzes of Health sciences

A detailed explanation of the embryonic development of the oropharynx and branchial arches, including the formation of the oral cavity, the role of the neural plate and neural folds, the development of the pharynx from the foregut, and the formation and functions of the branchial arches. It also covers the formation of muscles, nerves, and cartilages associated with each arch.

Typology: Quizzes

2009/2010

Uploaded on 05/27/2010

lmcclasky
lmcclasky 🇺🇸

18 documents

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TERM 1
the oropharynx includes
DEFINITION 1
the primitive oral cavity and the pharynx
TERM 2
the oral pit develops
DEFINITION 2
during the 4th week when the neural plate bends forward
and the neural folds develop the forebrain
TERM 3
the pharynx is developed from
DEFINITION 3
the foregut
TERM 4
the pocket that appears between the head
and the heart
DEFINITION 4
becomes the oral cavity
TERM 5
the oropharyngeal membrane ruptures
DEFINITION 5
in the 5th week and opens the oral cavity
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the oropharynx includes

the primitive oral cavity and the pharynx

TERM 2

the oral pit develops

DEFINITION 2

during the 4th week when the neural plate bends forward

and the neural folds develop the forebrain

TERM 3

the pharynx is developed from

DEFINITION 3

the foregut

TERM 4

the pocket that appears between the head

and the heart

DEFINITION 4

becomes the oral cavity

TERM 5

the oropharyngeal membrane ruptures

DEFINITION 5

in the 5th week and opens the oral cavity

the branchial (pharyngeal) arches begin to

form

inferior to the stomodeum during the 4th week

TERM 7

the branchial arches are bars of tissues

with

DEFINITION 7

a mesenchyme core (formed by neural crest cells)

TERM 8

there are _ pairs of

arches

DEFINITION 8

6 - but the 5th is so rudimentary in humans it is absent or

included with the 4th arch

TERM 9

arch I is also

called

DEFINITION 9

the mandibular

TERM 10

arch II is

named

DEFINITION 10

the hyoid arch

by the _ week, __ develop between and

separate the arches

5th; vertical grooves

TERM 17

within the pharynx __ develop which correlate

with the branchial grooves on the external

surface of the embryo

DEFINITION 17

pharyngeal pouches

TERM 18

the first branchial groove forms

DEFINITION 18

the external auditory canal

TERM 19

mesenchyme forms in the first branchial

groove, developing into the

DEFINITION 19

tympanic membrane

TERM 20

at week _ the blood supply of the face & neck

switches from the internal to the external _

DEFINITION 20

7; carotid

during week 5, _ _ begin to appear in the 1st

arch

muscle cells

TERM 22

the muscle cells spread within the 1st arch

during weeks _ _ _

DEFINITION 22

TERM 23

the muscles of mastication

are

DEFINITION 23

masseters, medial pterygoids, lateral pterygoids, and

temporalis

TERM 24

during week _, the 2nd arch cells develop and

spread; by week _ those cells have formed

the _ _ _ _

DEFINITION 24

7; 10; muscles of facial expresion

TERM 25

by the end of week _, fibers from the _ nerve

have entered the _ arch and the _ nerve has

entered the _ arch

DEFINITION 25

7; 5th (trigeminal); mandibular; 7th (facial); hyoid

the tounge has _ _ _ _ _ because it arises from

the _ _ and picks up nerves supply as it _ to

the floor of the mouth

several different sources of innervation; occipital myotome;

migrates

TERM 32

the branchial arch skeleton initially develops

as

DEFINITION 32

cartilaginous bars

TERM 33

the bones of the middle ear are the

DEFINITION 33

malleus, incus, and stapes

TERM 34

_ _ appears bilaterally in the 1st arch

DEFINITION 34

Meckel's cartilages

TERM 35

the contact point of the malleus and incus

form the lower jaw in the first 20 weeks which

is followed by the development of the

DEFINITION 35

Human temporomandibular joint (TMJ)

Reichert's cartilage forms in the _ arch

2nd

TERM 37

the protective bones of the brian and the

facial bones are

DEFINITION 37

membrane bones

TERM 38

membrane bones are formed directly from

DEFINITION 38

connective tissue

TERM 39

the bones of the craniofacial region form a

system of articulations called

DEFINITION 39

sutures

TERM 40

sutures are

DEFINITION 40

growth sites