sclerotome

sclerotome /scle·ro·tome/ (sklēr´o-tōm)

1. an instrument used in the incision of the sclera.

2. the area of a bone innervated from a single spinal segment.

3. one of the paired masses of mesenchymal tissue, separated from the ventromedial part of a somite, which develop into vertebrae and ribs.

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scle·ro·tome (sklîr-tm)

n.

1. A knife used in sclerotomy.

2. A group of mesenchymal cells emerging from the ventromedial part of a mesodermic somite and migrating toward the notochord.

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sclerotome

[sklir′ətōm]

Etymology: Gk, skleros + temnein, to cut

(in embryology) the part of the segmented mesoderm layer in the early developing embryo that originates from the somites and gives rise to skeletal tissue of the body, specifically the paired segmented masses of mesodermal tissue that lie on each side of the notochord and develop into the vertebrae and ribs. See also somite.

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sclerotome [skle´ro-tōm]

1. an instrument used in incision of the sclera.

2. the area of a bone innervated from a single spinal segment.

3. one of the paired masses of mesenchymal tissue, separated from the ventromedial part of a somite, which develop into vertebrae and ribs.

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sclerotome (skl·rō·tōmˑ),

n an area of bone innervated by a single spinal nerve and its branches.

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sclerotome

1. an instrument used in incision of the sclera.

2. the area of a bone innervated from a single spinal segment.

3. one of the paired segmented masses of mesenchymal tissue, separated from the ventromedial part of a somite, which develop into vertebrae and ribs.