ANAT UNIT 1 FINAL Word Scramble
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Question | Answer |
During gastruation the mesoderm becomes further differentiated into these three layers: | PARAXIAM MESODERM, INTERMEDIATE MESODERM, AND LATERAL PLATE MESODERM |
Around Day 20, the paraxial mesoderm begins to be organized into segments called: | SOMITES |
Each somite becomes organized into two separate segments. The segment located ventromedially is called a: | SCLEROTOME |
Each somite becomes organized into two separate segments. The segment located dorsolaterally is called a: | DERMOMYOTOME |
The sclerotome will form the bones of the: | AXIAL SKELETON |
The dermomyotome will form: | SKIN AND MUSCLES |
The axial skeleton is formed from these cells of the scelertome: | MESENCHYMAL |
Once the sclerotomes fuse in the midline they split into cranial and caudal portions and then begin a process of resegmentation. How does this happen? | THE CAUDAL HALF OF ONE SCLEROTOME FUSES WITH THE CRANIAL HALF OF THE NEXT MOST CAUDAL SCLEROTOME |
Failure of the vertebral arch to fuse properly is called: | SPINA BIFIDA OCCULTA |
Separation of the neural arch from the body is called: | SPONDYLOLISTHESIS |
Each dermomyotome portion of a somite differentiates into this medial part: | MYOTOME |
Each dermomyotome portion of a somite differentiates into this lateral part: | DERMOTOME |
The myotome divides into these two partes: | EPIMERE AND HYPOMERE |
Muscles develop from the myotome or the dermomyotome? | MYOTOME |
The deep back muscles develop from the epimere or the hypomere of the myotome? | EPIMERE |
The lateral and anterior trunk muscles develop from the epimere or the hypomere? | HYOPMERE |
What two signaling molecules are active in establishing the boundaries between adjacent somites? | RETINOIC ACID AND FIBROBLAST GROWTH FACTOR |
The notochord and ventral neural tube express these two signaling molecules that cause the ventromedial part of the somite to form the sclerotome: | SONIC HEDGEHOG AND NOGGIN |
The dermomyotome will differentiate into three portions: dorsomedial, middle, and ventrolateral. The dorsomedial portion will become: | EXPAXIAL MUSCLES |
The dermomyotome will differentiate into three portions: dorsomedial, middle, and ventrolateral. The middle portion will become: | DERMIS OF THE BACK AND TRUNK |
The dermomyotome will differentiate into three portions: dorsomedial, middle, and ventrolateral. The ventrolateral portion will become: | HYPAXIAL (BODY WALL) AND LIMB MUSCLES |
Failure of the neural arch to form that captures some of the meninges surrounding the spinal cord is a: | SPINA BIFIDA MENINGOCELE |
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