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Block 1-Anatomy > Germ Layer Qs > Flashcards

Germ Layer Qs Flashcards

1
Q

notochord is also known as _____.

A

axial mesoderm

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2
Q

skin over the spine (dorsal ramus sensory innervation) derived from

A

dermatome (paraxial mesoderm)

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3
Q

epithelia of gut derived from ____

A

endoderm

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4
Q

lung epithelia derived from ____

A

endoderm

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5
Q

liver epithelia derived from ____

A

endoderm

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6
Q

pancreas epithelia derived from ____

A

endoderm

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7
Q

trachea epithelia derived from ____

A

endoderm

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8
Q

back muscles close to the spine (dorsal ramus motor innervation) derived from

A

epimere (of the myotome, paraxial mesoderm)

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9
Q

Tissue type derived from all three germ layers

A

epithelia

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10
Q

cleft palate may indicate ____ defects due to similar embryolgic origin

A

heart (neural crest)

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11
Q

body and limb muscles (excluding back muscles close to spine) derived from

A

hypomere (of the myotome, paraxial mesoderm)

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12
Q

kidneys derived from ______

A

intermediate mesoderm

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13
Q

gonads derived from _________

A

intermediate mesoderm

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14
Q

ducts derived from ________

A

intermediate mesoderm

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15
Q

striated skeletal muscle derived from

A

myotome (paraxial mesoderm)

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16
Q

Four basic tissue types

A

nerve, muscle, connective tissue, epithelia

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17
Q

Connective tissue in head derived from ____.

A

neural crest

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18
Q

axons of motor neurons with cell bodies in the CNS derived from ____

A

neural crest

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19
Q

PNS neurons and glial cells derived from ___

A

neural crest

20
Q

pigment cells (melanocytes) in skin derived from ____

A

neural crest

21
Q

adrenal medulla derived from _____

A

neural crest

22
Q

tooth dentine derived from _____

A

neural crest

23
Q

great vessels of the heart derived from ____

A

neural crest (some) and splanchnic lateral plate mesoderm (most)

24
Q

CNS neurons and glial cells derived from ____

A

neural tube

25
Q

somites are derived from _____.

A

paraxial mesoderm

26
Q

vertebrae are derived from

A

sclerotome (paraxial mesoderm)

27
Q

ribs are derived from ____

A

sclerotome (paraxial mesoderm)

28
Q

each somite has 3 parts: ____, ____, ____.

A

sclerotome, dermatome, myotome

29
Q

outer tube connective tissues, blood vessels, smooth muscle derived from _____

A

somatic lateral plate mesoderm

30
Q

parietal peritoneum, parietal peura, parietal pericardium derived from _____

A

somatic lateral plate mesoderm

31
Q

inner tube connective tissues, blood vessles, smooth muscle derived from _____

A

splanchnic lateral plate mesoderm

32
Q

visceral peritoneum, visceral pleura, visceral pericardium derived from ____

A

splanchnic lateral plate mesoderm

33
Q

mesentaries derived from _____

A

splanchnic lateral plate mesoderm

34
Q

smooth muscle of stomach wall derived from ____

A

splanchnic lateral plate mesoderm

35
Q

epidermis derived from ____

A

surface ectoderm

36
Q

hair derived from____

A

surface ectoderm

37
Q

sweat glands derived from _____

A

surface ectoderm

38
Q

tooth enamel derived from ____

A

surface ectoderm

39
Q

body and limb muscles receive ______ ramus innervation

A

ventral

40
Q

The bicep muscle is derived from the _ of the _ of the _, which originally derives from the _.

A

hypomere; myotome; paraxial mesoderm; epiblast

41
Q

Where are the a) blood vessels, b) connective tissue, and c) motor neurons of the bicep muscle derived from?

A

a. Somatic/Splanchnic LPM
b. Somatic/Spanchnic LPM
c. Neural tube ectoderm

42
Q

When receiving a glucose screen (aka fingerprick), a patient feels a painful sensation. The nerve cells that first sense this finger pain are derived from _, and the signal is sent to the spinal cord and brain, which are derived from _.

A

neural crest cells; (neural tube) ectoderm

43
Q

The peritoneum is a bilayered membrane that partly surrounds the abdominal viscera; in between the two layers is the peritoneal space. The visceral peritoneum covers the surface of most abdominal organs, and is thus made of _. The parietal peritoneum lines the abdominal cavity, and is thus made of _.

A

splanchnic lateral plate mesoderm; somatic lateral plate mesoderm

44
Q

A patient has broken both his ribs and his humerus (arm bone!) in a car accident. Which two germ layers (exactly) have been affected?

A

sclerotome of the paraxial mesoderm

45
Q

Sensory (autonomic) neurons in the leg are derived from _ whereas motor neurons in the leg are derived from _.

A

neural crest cells; neural tube/ectoderm

46
Q

Skeletal muscle is only found in the _ tube, whereas smooth muscle is found _.

A

outer; inner and outer (in the blood vessels!- inner tube structure in the outer tube)

47
Q

A newborn has a genetic defect that has altered the formation of his intermediate mesoderm. While many genitourinary organs will be effected, the _ will not be.

A

Bladder

Block 1-Anatomy (5 decks)

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