0
The ones with the shortest (normal) lifespans - like skin & the lining of the gut.
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
Which of the following cell types are at least sensitive to ionizing radiation damage?
Cells that are actively dividing are most sensitive to radiation damage.
Which of the following cell types are least sensitive to ionizing radiation damage?
cells that divide slowly
What is the light-sensitive layer of neurons inside the eye?
Simply explained, the light sensitive cells inside the eye are located on the retina. There are two different types of photoreceptor cells: rods, which read light intensity or back and white; and cones which are color sensitive. Both rod and cone cells are then connected to ganglion cells. These cells then bundle into the optic nerve which carries the signals from the photoreceptor cells into the brain. Also, the photoreceptor cells are the furthest layer form the front of the eye and are closest to the back wall or choroid layer of the retina.
What color are cones of the retina sensitive to?
well the retina is covered is covered with two kinds of light sensitive nerves cells. six million of the are cones, these cells read color. Cone-shaped cells are divided into three types that detect only the specific colors such as yellow,green,or blue but combine to let you see an incredible array of different colors
What are two types of cells found in the human body?
There are three types of embryonic cells; endoderm, mesoderm, and ectoderm. In the human body there are many different types of cells, more than two. They are grouped into tissue types. We have four different tissues; connective, nervous, muscular, and epithelial. The two major groups of cell types in the human body are somatic cells and gamete cells.
Which of the following cell types are at least sensitive to ionizing radiation damage?
Cells that are actively dividing are most sensitive to radiation damage.
what cells types are least sensitive to ionizing radiation damage?
Cells that do not have a nucleus
Cell types are most sensitive to radiation damage?
Cells that are actively dividing are most sensitive to radiation damage.
Which of the following cell types are least sensitive to ionizing radiation damage?
cells that divide slowly
What does the law of Bergonie and Tribondeau mean?
The law of Bergonie and Tribondeau states that the sensitivity of tissues to radiation is influenced by their rate of proliferation and level of differentiation. Essentially, rapidly dividing and undifferentiated cells are more sensitive to radiation damage, while slowly dividing and differentiated cells are more resistant. This principle helps guide radiation therapy by targeting cancer cells that are more sensitive to radiation.
What cell types are most sensitive to radiation damage?
The ones with the shortest (normal) lifespans - like skin & the lining of the gut.
How can radiation cure some types of cancer?
The main scooby dooby on this is that the bioligical damage done to some kinds of cells by exposure to radiation is greater than others. And we frequently see that cancer cells will "take more hits" and die if irradiated than many kinds of "regular" cells will. Radiation (either electromagnetic or particulate) causes ionization in tissue when it is of sufficient energy. A microwave oven will not cause this, but higher energy electromagnetic waves will cause it. So will particulate radiation. The chemical bonds that hold DNA together can be broken by ionizing radiation, and this kind of damage is difficult (if not impossible) for the cell to repair. If we can damage a large number of cancer cells with a minimum of damage to surrounding tissue, radiation therapy can be prescribed for the treatment of some kinds of malignant neoplasms.
Why do radiographers wear special protective clothing and use remote controls for taking X rays?
X-rays are a form of ionizing radiation, similar to the gamma rays from nuclear radiation. These forms of radiation are highly-penetrating, and they damage or kill cells deep within the body. People who work with these types of radiation on a regular basis want to avoid damage to their bodies, and so they take protective measures to minimize their exposure.
Why radiation is dangerous?
Radiation, which comes in a couple of harmful forms, can be either electromagnetic or particulate. The dangerous electromagnetic radiation includes X-rays and the more potent gamma rays. Particulate radiation takes a number of forms which include alpha, beta, proton and neutron radiation. All these forms of radiation are what are called ionizing radiation. The ability of this radiation to penetrate varies, but the energies carried by ionizing radiation can damage genetic material within cells. This can result in cellular damage, mutation or even the death of the cell. Biologic material is seriously threatened by these types of radiation, and exposure should be minimized if not completely eliminated.
Radiation Treatment For Cancer?
Radiation therapy uses ionizing radiation to kill cancer cells and shrink tumors. About half of all people with cancer are treated with radiation therapy, either alone or in combination with other types of cancer treatment. Radiation therapy may be external or internal. External radiation treatment for cancer, the type most often used, comes from a machine outside the body, and is usually given on an outpatient basis. Internal radiation is implanted into or near the tumor in small capsules or other containers. It may require a hospital stay. Different types of radiation are used to treat different types of cancer. Radiation therapy makes it impossible for cells in the area being treated (the "target tissue") by damaging their genetic material. Although radiation damages both cancer cells and normal cells, most normal cells can recover from the effects of radiation and function properly. The goal of radiation therapy is to damage as many cancer cells as possible, while limiting harm to nearby healthy tissue. There are different ways to deliver different types of radiation. For example, certain types of radiation can penetrate more deeply into the body than can others. In addition, some types of radiation can be very finely controlled to treat only a small area (an inch of tissue, for example) without damaging nearby tissues and organs. Larger areas are better treated with other types of radiation. Symptoms such as pain from cancer that has spread to other parts of the body and bones, can be reduced from radiation. This is called palliative radiation therapy. Completely destroying an entire tumor, in some cases, is the goal of radiation treatment. In other cases, the aim is to shrink a tumor and relieve symptoms. In either case, doctors plan treatment to spare as much healthy tissue as possible. About half of all cancer patients receive some type of radiation therapy. Used alone, or in combination with other cancer treatments such as chemotherapy or surgery, radiation can be used, and sometimes more than one type. Hyperthermia, the use of heat, is being studied in conjunction with radiation therapy. Researchers have found that the combination of heat and radiation can increase the response rate of some tumors. Scientific advances have led to the discovery of new targets that are being investigated to attract radioactive materials directly to cancer cells. Laboratory and clinical research is in progress using the new molecular therapeutic agents, with radiation therapy. New ways of using radiation treatment for cancer are being researched. One such process is called radio immunotherapy. This is the use of radio labeled antibodies to deliver doses of radiation directly to the cancer site. The antibodies seek out cancer cells which are destroyed by the radiation substances attached to them. This approach can minimize the risk of radiation damage to healthy cells.
How can the human eye see objects and color?
Using light sensitive cells in the retina of the eye called rods and cones. Rods are not color sensitive, they only respond to the intensity of light. Cone cells come in three color sensitive types: red, green, and blue. Note: mammals other then primates (humans are primates) only have two types of cones: green and blue; birds and reptiles have four types of cone cells: red, green, blue, and ultraviolet.
What is bad radiation?
Radiation is bad for us because most of the types of electromagnetic radiations are high in energy. This high energy waves can cause damage to our cells. Prolonged exposure to gamma rays can be bad for health.
