Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/46

Click to flip

46 Cards in this Set

  • Front
  • Back
on the 23rd day after fertilization, the mesoderm has just developed into ... and ...
somites and somitomeres
the gut tube is pulled ... with the ... during the early part of neural development
anteriorly and buccopharyngeal/oral plate
foregut
midgut
hindgut
identify the labeled structures:
a.
b.
c.
pharynx
allantois
yolk sac
connecting stalk
identify the labeled structures:
a.
b.
c.
c
where does the first branchial arch start developing?
on either side of the embryonic pharynx
the second brancial arch develops before or after the first brancial arch?
after
at 3 to 4 weeks, how many branchial arches does the embryo have? and name them
2
first and second pharyngeal arches
as the first arch bends around the oral plate, it forms 2 parts ... and ...
maxillary division
mandibular division
the ... arch develops behind the 2nd branchial or pharyngeal arch
3rd
maxillary prominence
mandibular prominence
pharyngeal arches 2nd and 3rd
stomadeum
identify the labeled structures:
a.
b.
c.
d.
1
2
3
4-6
number the following branchial arches:
a.
b.
c.
d.
the 1st 2 branchial arches form (before/after) the neuropore closes
before
stomadeum (mouth)
anterior 2/3 of tongue
posterior 1/3 of tongue
esophagus
identify the labeled structures:
a.
b.
c.
d.
foramen cecum
epiglottic swelling
laryngiotracheal groove
identify the following structures:
a.
b.
c.
ectoderm
endoderm
mesoderm
the blue represents?
the yellow represents?
the brown represents?
brancial means ...?
gills
another name for the 2nd branchial arch is ...?
hyoid arch
the 2nd branchial arch will develop into ...?
most of the hyoid bone
pharyngeal cleft
pharyngeal pouch
name the following structures:
a.
b.
aortic arch 1: degenerates
aortic arch 2: degenerates
aortic arch 3: carotid arteries (left and right)
name the arteries and their fate:
a.
b.
c.
aortic arch 4: left becomes arch of aorta
aortic arch 4: right becomes right subclavian artery
aortic arch 6: pulmonary arteries
identify the arteries and their fates:
a.
b.
c.
the maxillary division of the 1st branchial arch gives rise to what cranial nerve(s)? and the nerves are (sensory/motor/mixed)?
maxillary division of trigeminal

sensory only
the mandibular division of the 1st branchial arch gives rise to what cranial nerve(s)? and the nerves are (sensory/motor/mixed)?
mandibular division of trigeminal

mixed
the 2nd branchial arch gives rise to what cranial nerve(s)?
facial nerve
the 3rd branchial arch gives rise to what cranial nerve(s)?
glossopharyngeal nerve
the 4th and 6th branchial arches gives rise to what nerve(s)?
vagus nerve
facial nerves are said to be ... meaning that they they move only skin and do not move bone
superficial
what cranial nerve number is the maxillary division of trigeminal?
cn5
what cranial nerve number is the mandibular division of trigeminal?
cn5
what cranial nerve number is the facial nerve?
cn7
what cranial nerve number is the glossopharyngeal nerve?
cn9
what cranial nerve number is the vagus nerve?
cn10
the mandibular branch nerve (cn5) innervates the muscles of ...
mastication
1st branchial arch gives rise to what muscle?
muscles of mastication
2nd branchial arch gives rise to what muscles?
muscles of facial expression
3rd branchial arch gives rise to what muscles?
stylopharyngeus muscle
4th branchial arch gives rist to what muscles?
muscles of larynx and pharynx
the tongue is innervated by ...?
cn12
branchial groove 1 gives rise to what?
external auditory meatus
pharyngeal pouch 1 gives rise to what?
middle ear and auditory tube
merckel's cartilage is derived from ... and gives rise to ...?
1st branchial arch

degenerates and becomes nothing (gives rise to couple of osicles in middle ear)
what is the fate of branchial grooves 2 through 6?
they fuse into a cervical sinus, which disappears (occasionally forms cyst)
pharyngeal pouch 2 gives rise to what?
palatine tonsil
pharyngeal pouch 3 gives rise to what?
inferior parathyroid and thymus
pharyngeal pouch 4/5 gives rise to what?
superior parathyroid and c-cells of thyroid (c-cells regulate calcium)
the anterior-most region of the gut tube becomes the ...
pharynx