TEST BANK FOR Essentials of Oral Histology and
Embryology
Ectoderm - ANSWERSWhat forms the outer layer of the embryo?
Flat disk - ANSWERSWhat is the shape of cell (embryo) in the beginning stage of the ectoderm?
Ectoderm, Outer , Adult skin - ANSWERSThe ------- forms cells that cove the embryo with
protective ------ layer? Equivalent to the -----------?
Epidermis - ANSWERSThe adult skin is the first layer and seen in general histology and its made
of a layer called ---------- (epithelial tissue)
Epidermis , Ectoderm - ANSWERSThe ---- of the adult skin is derived from ------?
Mesoderm - ANSWERSThe dermis is derived from underlying -----------?
Epidermis - ANSWERSThe first derivative of the ectoderm is the ------ of the skin?
Ectoderm (outside), Mesoderm (inside), and endoderm (inside) - ANSWERSwhat are the three
germ layers of the embryo?
Neural tube
Head
Tail - ANSWERSthe ectoderm (outer layer) is folding up on it self. Forming long tube from ends
to end called-----? and it is the beginning definition of the ------ and ------ of the embryo?
Dorsum
, Ventrum - ANSWERSThe back of the embryo called ------- and the belly called----?
Brian
Spinal cord - ANSWERSOne end of the neural tube is bulged-out becomes the ----, and the rest
of the tube becomes the ----?
Ectoderm - ANSWERSThe brain and spinal cord are part of central nervous system and
derivatives of ---------?
Neural crest cells - ANSWERSPaired groups of cells branch off of the neural tube, these cells are
called-------?later becoming part of the future brain and spinal cord.
Spinal nerves - ANSWERSNeural crest cells coming off the future spinal cord and branch out into
the body as paired called-------?
Cranial nerves - ANSWERSNeural crest cells coming off the future brain and branch out into the
body as paired called
Optic cup
Otic placode - ANSWERSTissues from the brain is developing the future eyes and ears in areas
called -------- and -------?
Mesoderm - ANSWERSThe neural crest of the head also develops into the cranial nerves and
into special --------- of the facial region?
Muscle, connective tissue, and bone
Pharyngeal - ANSWERSWhen (Ectoderm that becomes mesoderm) this is the only place in the
embryo such a thing happens. The mesoderm will become or derive the -------, ------, and ------ of
the face. watch travel out from the neural tube into the -------- arches.
Embryology
Ectoderm - ANSWERSWhat forms the outer layer of the embryo?
Flat disk - ANSWERSWhat is the shape of cell (embryo) in the beginning stage of the ectoderm?
Ectoderm, Outer , Adult skin - ANSWERSThe ------- forms cells that cove the embryo with
protective ------ layer? Equivalent to the -----------?
Epidermis - ANSWERSThe adult skin is the first layer and seen in general histology and its made
of a layer called ---------- (epithelial tissue)
Epidermis , Ectoderm - ANSWERSThe ---- of the adult skin is derived from ------?
Mesoderm - ANSWERSThe dermis is derived from underlying -----------?
Epidermis - ANSWERSThe first derivative of the ectoderm is the ------ of the skin?
Ectoderm (outside), Mesoderm (inside), and endoderm (inside) - ANSWERSwhat are the three
germ layers of the embryo?
Neural tube
Head
Tail - ANSWERSthe ectoderm (outer layer) is folding up on it self. Forming long tube from ends
to end called-----? and it is the beginning definition of the ------ and ------ of the embryo?
Dorsum
, Ventrum - ANSWERSThe back of the embryo called ------- and the belly called----?
Brian
Spinal cord - ANSWERSOne end of the neural tube is bulged-out becomes the ----, and the rest
of the tube becomes the ----?
Ectoderm - ANSWERSThe brain and spinal cord are part of central nervous system and
derivatives of ---------?
Neural crest cells - ANSWERSPaired groups of cells branch off of the neural tube, these cells are
called-------?later becoming part of the future brain and spinal cord.
Spinal nerves - ANSWERSNeural crest cells coming off the future spinal cord and branch out into
the body as paired called-------?
Cranial nerves - ANSWERSNeural crest cells coming off the future brain and branch out into the
body as paired called
Optic cup
Otic placode - ANSWERSTissues from the brain is developing the future eyes and ears in areas
called -------- and -------?
Mesoderm - ANSWERSThe neural crest of the head also develops into the cranial nerves and
into special --------- of the facial region?
Muscle, connective tissue, and bone
Pharyngeal - ANSWERSWhen (Ectoderm that becomes mesoderm) this is the only place in the
embryo such a thing happens. The mesoderm will become or derive the -------, ------, and ------ of
the face. watch travel out from the neural tube into the -------- arches.
