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41 Cards in this Set

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  • Back
branchial arches start developing on the # day after fertilization
23rd
branchial arches begins with the ...

it's pulled anteriorly with the ... during the early part of neural development
gut tube

oral (buccopharyngeal) plate
As it pulls forward, it pulls into a 'tube' which elongates. The embryonic ... is the part closest to the oral plate itself.
pharynx
As the brain grows rostrally, the gut tube is pulled in what direction?
anteriorly
The gut tube then differentiates into what 3 parts as it expands?
foregut
midgut
hindgut
The ... is in the anterior-most region.
pharynx
the arches develop as small columns of tissue on either side of the embryonic ...
pharynx
The first arch bends around the oral plate and forms what 2 parts?

The second arch develops behind it, followed by the 3rd
-maxillary division
-mandibular division
The first 2 arches form while the ... is still open
cranial neuropore
inside the embryonic ..., it contains midline structures (developing tongue, larynx, etc.) as well as branchial arches.
pharynx
what makes up most of the small and large intestines?

what makes up the rest of the large intestine, up until the rectum?

what makes up the upper part of GI system, small part of stomach and esophagus, and pharynx?
midgut
hindgut
foregut
the #th branchial arch never really develops. it degenerates very quickly
5th
the ... is a midline structure and is a small hole that the thyroid travels to
foramen cecum
the posterior # of the tongue becomes root (attachment point) of tongue
1/3
the ... is surrounded by branchial arch 1 structures and splits open when the embryo gets large enough
stomadeum
the stomadeum becomes the ...
oral canal
2nd branchial arch becomes the ... (contains precursers for most of this bone)
hyoid
what are these?
Cartilage, aortic arch, cranial nerve, muscle, pharyngeal pouch, branchial groove
structures within the branchial arches
aortic arch 1 and 2 ...
degenerate
aortic arch 3 is a derivative of the ...
carotid arteries
aortic arch 4 is a derivative of what 2 parts?
left-arch of aorta
right-subclavian
aortic arch 6 a derivative of the ...
pulmonary arteries
which branchial arch derives the maxillary division of the trigeminal (5)? (purely sensory)
Branchial arch 1 maxillary
which branchial arch derives the mandibular division of the trigeminal(5)? (both sensory and motor-muscles of mastication)
branchial arch 1 mandibular
which branchial arch derives the facial nerve? (7) (muscles of facial expression-all superficial)
branchial arch 2
where is the glossopharyngeal nerve derived from? (9)
Branchial arch 3
where is the vagus nerve derived from? (10)
branchial arch 4 and 6
is the hypoglossal nerve (cranial nerve 12), the motor nerve to the tongue muscle, derived from any of the branchial arches?
No
branchial arch 1 derives what muscles?
muscles of mastication
branchial arch 2 derives what muscles?
muscles of facial expression
branchial arch 3 derives what muscles?
stylopharyngeus muscle
branchial arch 4 derives what muscles?
muscles of the larynx and pharynx
the bones that develop from the branchial arches include facial bones, as well as bones and cartilage in the ... part of the neck
visceral
branchial groove 1 derives the ...
external auditory meatus
pharyngeal pouch 1 derives the ... and ...
middle ear
auditory tube
(connects pharynx to middle groove)
the first groove and pouch help to form some structures of the ...
ear
grooves 2-6 don't form any structures, but becomes the ...
ectoderm
behind the 2nd arch, branchial grooves fuse into a ..., which disappears (occasionally forms cyst)
cervical sinus
pharyngeal pouch 2 derives the ...
palatine tonsil
pharyngeal pouch 3 derives the ... and ...(which is part of the immune system, and is also involved in calcium regulation)
inferior parathyroid
thymus
pharyngeal pouch 4/5 derive the ... and ...(involved in regulation of calcium)
superior parathyroid
C-cells of thyroid