Cells and Systems Test II

When the student's foot was injured, what was placed in the foot to help realign the metatarsal bones? cast stitches steel pins bone aligners As the student's foot healed over time, which did not happen? swelling reduced range of motion improved top of foot pain went away blood flow in the foot decreased Match the information skin protects muscles and bones muscle contracts and expands to move parts of the body bone give the body its shape Which body part in the diagram below is labeled B? muscle skin nerves bone Match the information red blood cells carries oxygen from lungs to parts of the body white blood cells helps fight infections platelets help clog damaged body parts to stop bleeding plasma fluid that carries food, water, waste, and nutrients around the body Looking at the microscopic images below, which statement supports how to know which is a living thing? Living things are green Living things show shapes when looking through a microscope Living things have cells Living things reflect light to your eyes When you cut your skin, what does your body send to the injured area first? new skin cells platelets new nerve cells scabs This is a microscopic image of skin cells. What is the white object that the arrow is pointing to? cell wall nucleus piece of bone plasma When a skin cell is getting ready to split, what does the cell's nucleus make a copy of so that each new skin cell also contains it? cell wall its shape chromosomes platelets Sort the information based on the student's injury. When the injury happened metatarsal (toe) bones broke damaged nerves skin had a laceration How the body heals an injury platelets form clots cells split to fill in gaps white blood cells sent to fight any infections True or False? Everything living and non-living thing contains cells. True False Is this image an example of an X-ray or an MRI? X-ray MRI Below are X-ray images of a human hand from 3 years old to an adult. You’ll notice that in the child’s hand, there are spaces or gaps between the bones. The bones are also smaller. Those gaps in the child’s hand are called Growth Plates. In the adult hand, you can see that those gaps are gone and the bones are larger. Using what we learned about cells, which most likely happens to the structures of the bone at the growth plates (gaps) as a child grows into an adult? 2-Point Question The bones stretch out to close the gap Pins are put in to align the bones Bone cells split into new cells to make the bones longer New skin and muscle cells fill in the gaps to create new bone What could happen if your body has a lower-than-normal amount of platelets? Too much oxygen in the blood Bones would break more easily Bleeding from a cut would be difficult to control Skin cells would duplicate to quickly What conclusions can be drawn about cell differentiation from observing skin, bone, and muscle under a microscope? All cells in different body parts are identical. Cells do not vary between tissues. Cells are specialized or specific based on their tissue type. If your body has a difficult time fighting infections, which could be the cause? Red blood cells are too large Low amount of white blood cells Platelets are to stretchy Bones are too soft When does a scab most likely fall off your skin? When it gets too hard When it loses its stickiness When the area underneath swells and pushes it off When the area underneath is healed How is an MRI different from an X-ray? MRI shows only the skin; x-ray shows everything MRI is only for animals; x-ray is for humans. MRI uses light; x-ray uses rainbows. MRI shows soft tissues; x-ray shows hard structures like bones.