Describe the composition and function of the extracellular matrix.
What will be an ideal response?
In any tissue, the extracellular matrix consists of two basic components: proteoglycans and insoluble proteins. The matrix plays an important role in processes ranging from growth and development to cell death. The matrix aids in cell communication with its environment by attaching to the cell membrane or cytoskeleton.
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The frontal bone is known as the ________.
A. elbow B. hipbone C. tail bone D. collar bone E. forehead
The origin of the 46 chromosomes in a human zygote is
A. half from the sperm and half from the egg. B. all from the egg. C. all from the sperm cell. D. half from DNA and half from RNA.
The nerves going to the upper limbs join the spinal cord at the ________ region
A) Lumbar B) Thoracic C) Sacral D) Cervical
Pain from the kidneys is usually referred by way of the
A. sympathetic pathways to the T11-L2 dermatomes. B. somatic pathways to the left shoulder. C. parasympathetic pathways to the T1-T2 dermatomes. D. autonomic pathways to the inferior pelvic organs.