What is CT?
What does CT stand for?
Computed tomography
T/F: CT scans can be used to create 3D images
True. Tomographic images can be stacked together by a computer to form a 3D image
T/F: CT scans are more accessible than X-rays
False. X-rays are less expensive and more accessible for the public
The largest organ in the human body
Skin
The purpose of contrast material
To enhance the visibility of structures in the body during a scan
CT Scans can be used to monitor _______.
previously detected anomalies and the success of different treatments
The reason MRI scans are preferred for pregnant women and children
They are more vulnerable to radiation
The number of bones in a human newborn and the number of bones in a human adult
300 and 206 respectively
Describe the gantry
Donut-shaped structure where the patient lies on a bed
Name three medical procedures that CT scans can guide
A risk of using contrast material in CT scans (both answers for double points)
- Worsened kidney function in patients with kidney diease
State the difference between mitosis and meiosis
MITOSIS: for repair or growth
MEIOSIS: to produce reproductive cells (sperm or ovum)
The 2D cross-sectional "slices" created with CT scans are called
Tomographic images
A reason CT scans are used over other scans in emergencies
CT scans are fast, noninvasive and useful for finding internal injuries
A reason a patient would qualify for a CT scan but not for an MRI
An implanted medical device, such as a pacemaker
What reptile has a third eye as a hatchling which eventually gets covered in scales and skin as it grows?
Tuatara
If a patient's stomach was being imaged, would they need to use a contrast agent? If so, what type?
Yes. They would swallow a barium-based contrast agent, as the digestive system is what needs to be imaged.
Name five things CT can be used to detect
Location of tumors, fractures, heart disease, blood clots, bowel disorders, internal bleeding, and brain and spinal cord injuries
In what areas of the body can CT fail at capturing details?
Areas containing soft tissue, such as the brain, gallbladder, and joints
Percentage that you are going to pass this upcoming biology test
Probably 0%
Actual question: list all the stages of mitosis in order