somatic

Examples of somatic in the following topics:

• Sensory-Somatic Nervous System

  • The sensory-somatic nervous system transmits sensory information from the body to the brain and motor movements from the brain to the body.
  • The sensory-somatic nervous system is composed of cranial and spinal nerves and contains both sensory and motor neurons.
  • Without its sensory-somatic nervous system, an animal would be unable to process any information about its environment (what it sees, feels, hears, etc. ) and could not control motor movements.
  • Explain the role of the cranial and spinal nerves in the sensory-somatic nervous system

• The Role of the Cell Cycle

  • While there are a few cells in the body that do not undergo cell division, most somatic cells divide regularly.
  • A somatic cell is a general term for a body cell: all human cells, except for the cells that produce eggs and sperm (which are referred to as germ cells), are somatic cells.
  • Somatic cells contain two copies of each of their chromosomes (one copy received from each parent).

• Cellular Differentiation

  • Three basic categories of cells make up the mammalian body: germ cells, somatic cells, and stem cells.
  • Somatic cells are diploid cells that make up most of the human body, such as the skin and muscle.

• The Process and Purpose of Gene Expression Regulation

  • Each somatic cell in the body generally contains the same DNA.
  • The genetic content of each somatic cell in an organism is the same, but not all genes are expressed in every cell.

• Genomic DNA and Chromosomes

  • A typical body cell, or somatic cell, contains two matched sets of chromosomes, a configuration known as diploid.
  • There are 23 pairs of homologous chromosomes in a female human somatic cell.

• Telomere Replication

  • Telomerase is typically active in germ cells and adult stem cells, but is not active in adult somatic cells.
  • As a result, telomerase does not protect the DNA of adult somatic cells and their telomeres continually shorten as they undergo rounds of cell division.

• Muscle Tissues and Nervous Tissues

  • Skeletal muscle is under voluntary, somatic nervous system control and is found in the muscles that move bones.
  • Stimulation of these cells by somatic motor neurons signals the cells to contract.

• Gene Expression for Spatial Positioning

  • The nematode C.elegans has roughly 1000 somatic cells and scientists have studied the fate of each of these cells during their development in the nematode life cycle.

• Reproductive Cloning

  • Somatic cell nuclear transfer is the technique of transferring a diploid nucleus into an enucleated egg.

• Fungi Reproduction

  • Somatic cells in yeast form buds.