Chp 3 Flashcards
(101 cards)
1
Q
What week does the face develop
A
4th week
2
Q
what week does the heart get pushed beneath the brain
A
4th week
3
Q
Head and neck area is formed by what arches
A
pharyngeal arch
mandibular arch
4
Q
4th week
A
The brain bends down
pushing the heart ventrally
and the oral cavity forms between them
5
Q
there is a small pit that develops between the brain and heart this is the _____
A
stomodeum
oral cavity
6
Q
What tissue separates the stomodeum from the body becoming the esophagus
A
oropharyngeal membrane
7
Q
Oropharyengeal membrane becomes
A
a long foregut tube, esophagus, digestive tract
8
Q
sac closes to form the ___ a long tube
A
foregut
9
Q
Oropharyengeal membrane does what the 5th week
A
ruptures
the oral cavity and forgut combine forming the oropharnyx (nose and mouth)
10
Q
what week does your oropharynx develop?
A
5th week
11
Q
the oral cavity and forgut combine forming the
A
oropharnyx (nose and mouth)
12
Q
maxillary process in fourth week forms the
A
cheeks
13
Q
blood is forced through what on week 4
A
the pharyngeal arches
supplying the neck, face and brain
14
Q
what surrounds the oral pit week 4
A
maxillary process
15
Q
what is under the maxillary process week 4
A
mandibular arch
16
Q
what is under the mandibular arch week 4
A
first brachial groove
17
Q
what is under the brachial groove week 4
A
hyoid arch
18
Q
Facial development week 4
in order
A
Forebrain Frontonasal process Oral pit Maxillary process Mandibular arch First brachial groove Hyoid arch Third brachial arch
19
Q
At week 4 what bends around the sides of the pharynx as bars of tissue
A
phayrngeal arches
20
Q
Outer surface of each pharyngeal arch is covered with
Inner surface of each pharyngeal arch is covered with
A
ectoderm- becomes the epithelial lining of the oral cavity
endoderm
21
Q
1st pharyngeal arch is
A
mandibular arch muscles of mastication nerves blood meckles cartilage
22
Q
meckles cartilage comes from
A
pharyngeal arch 1
mandibular arch
23
Q
2nd pharyngeal arch is
A
Hyoid arch
facial muscles, vessels and hyoid bone
24
Q
hyoid bone does what
A
holds the toungue
25
3rd pharyngeal arch
common carotid arteries
| supplying the neck, face and brain
26
how do your teeth get blood
carotid artery
27
4th pharyngeal arch
dorsal artery
28
5th pharyngeal arch
2nd arch and 5th arch grow together smoothing the neck
29
6th pharyngeal arch
appears and disappears supplies the lungs with blood
30
what pharyngeal arch supplies blood to the face
3rd pharyngeal arch
31
the facial muscles grow from which pharyngeal arch
2nd pharyngeal arch
32
FOUR muscles of mastecation
masseter
medial
lateral pterygoid
temporalis muscle
33
the facial muscles grow from the 2nd pharyngeal arch to cover the
face
scalp
muscles posterior to the ear
34
which nerve helps us chew (mastication)
Nerve V (5)- trigeminal
35
nerves develop simultaneously with
muscles
36
What nerve helps us protrude tongue
Nerve XII- hypoglossal
37
What disease is trigeminal nerve V ganglion
herpes
38
what nerve is associated with our gag reflex
Nerve IX (9)- Glossopharyngeal
39
what nerves are associated with taste
Nerve
IX (9)- Glossopharyngeal
VII (7)- Facial
X (10)- vagus
40
what nerve helps with smiling, frown, raise eyebrows and taste
Facial VII (7)- Facial
41
what arch does meckles cartilage come from
arch 1 mandibular arch
42
what does meckles cartilage help create
your mandible bone
43
arch 2 hyoid forms
stapes, styloid, and lesser horn
| of hyoid
44
Reichert cartilage forms what
your hyoid bone
45
Two parts of the mandibular that project into the mandibular
Condyloid process
| Coronoid Process
46
Intramembranous bones form directly from
connective tissue
| not directly from cartilage
47
bone typically starts out at
cartilage
48
the process of the sutures calcifying from cartilage to bone is called
synchondrosis
49
alveolar is
where your teeth sit in the mandible
50
cancelous means
spongy bone
51
the face develops through what weeks
4th-7th week
52
head and neck start developing and end
4th week
| 9th week
53
what period do tetragens affect us most
week 3-8 prenatal
54
treacher collins syndrome
maxillary arch did not develop, close, elevate
| no cheekbones
55
what can cause defects
dietary factors
herediatary
environmental
56
what arch forms the cheeks
1st pharyngeal arch
57
which arch is important in the development of the face and neck
hyoid arch
58
The outer surface of each arch is covered with ____
ectoderm
59
the inner surface of the 1st arch is covered with ______
ectoderm
60
This ectoderm will become the epithelial lining of the oral cavity
the inner surface of the 1st arch and the anterior surface of the 2nd arch
61
what is the pharyngeal surface of all arches EXCEPT for the 1st and 2nd arch
endoderm
62
what is in the core of the arches
blood vessels, muscles, nerves cartilages and bone
63
which arches grow over the other arches
2 and 5
64
Each pharyngeal arch contains what blood vessel at the beginning
right and left aortic arch vessel
65
what supplies blood to the face, neck and brain
common carotid artery
66
muscle cells in the arch become apparent during which week
5th
67
3rd arch vessel becomes what artery
common carotid artery
68
4th arch vessel becomes what
the dorsal aorta
69
vessels of the 6th arch supply what part of the body
the lungs with pulmonary circulation
70
The initial skeleton of the pharyngeal arch develops as _____ ____
cartiligeanious bars
71
Meckel's cartlilage appears whuch pharyngeal arch
1st arch
72
the rod-shaped arch of the second/hyoid arch is known as
reichert cartilage
73
what arch do the stapes, styloid process, lesser horn and upper body of hyoid arise from
second/hyoid arch
74
what arch does the great horn and lower hyoid come from
third arch
75
what arch does the hyoid cartilage come from
4th
76
what arch does the laryngeal cartilage come from
6th
77
Earliest formed skeletal elements are?
```
craniofacial area
nasal capsule (ethmoid)
sphenoid bone
auditory capsule
basioccipital cartilage
```
78
cartilages forming the cranial base
ethmoid
spehnoid
basioccipital
79
sutures are what kind of joint
fiborus
80
synchondrosis is located where on the skull
midline
81
synchondrosis is
when an articulation forms new cartilage at the center of the suture and bone on the periphery
82
synostosis is
suture with bone o bone union
83
what structures come from the 1st pharyngeal arch
the mandibular arch is the 1st arch
| mandible- muscles of mastication, nerves and blood supply
84
what is the importance of meckels cartilage
it is the initial skeletal component of the first pharyngeal arch
* it is the supporting cartilage of the mandibular arch in the embryo
* it articulate with the developing middle ear bones to form the primary temporomandibular join
85
structures derived from the second pharyngeal arch
hyoid arch forms facial muscles, vessels, and hyoid bone
86
rapid palatal expansion can be used by orthodontist to increase the width of the hard palate. why and when can midpalatal suture be used to effect changes in the hard palate?
to reshape the maxillary to fit correctly over the mandibular. during the periocranial growth before they fuse together and harden
87
what do the 1st, 2nd, 3rd, and 4th pharyngeal pouches do
1st pouch- middle ear
2nd- palantine tonsils
3rd- inferior parathyroids
4th- superiror parathyroids
88
origin and growth of the muscles of mastication
the muscles of the mandibular arch or 1st arch form
89
origin decent and function of thyroid gland
the 3rd, 4th and 5th pouch become the thyroid an dparathyroid.
hormone gland: It plays a major role in the metabolism, growth and development of the human body. It helps to regulate many body functions by constantly releasing a steady amount of thyroid hormones into the bloodstream.
90
cartilages of the early facial development and the bones that replace them
meckels cartilage forms mandible, incus malleus bones
| hyoid cartilage forms stapes, styloid and lesser horn
91
sutures of the skull
coronal
sagittal
lambdoid
lateral
92
arch 1 gives rise to
mandible
93
palantine tonsil function is what?
develop lymphocytes
94
________ is made up of the forgut and primitive oral cavity
oropharynx
95
what nerve is associated with tears and salavia
facial
96
which nerve is functioning when you say ahhhhhh
vagus
97
Which nerve sends info from PNS to CNS
afferrent
98
blood volume is dictated by which system
urinary
99
which arch develops muscles in the face
2nd arch (hyoid)
100
which arch develops pulmonary tract
6th arch
101
which nerve system sends info from CNS to PNS
efferrent
