Medical Physics ABR Part 1 Clinical/Basic Anatomy and Radiobiology for the Medical Physicists. Specifically to study for Part 1 of the ABR Medical Physics exam.

Medical Physics ABR Part 1 Clinical/Basic
Anatomy and Radiobiology for the Medical
Physicists. Specifically to study for Part 1 of the
ABR Medical Physics exam.

Rate the body systems in order of decreasing radio-sensitivity. - Correct Answers 1.
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Hematopoietic, Reproductive (2-5 Gy)
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2. Skin, cornea, lens of eyes, GI organs (10 Gy)
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3. Bone and cartilage
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4. Lungs, kidneys, Liver, Pancreas
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5. Muscle, brain, nerves, spinal cord (20 Gy)
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Il` a. What are the components of the cell cycle & their order?
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b. What is the relative radio-sensitivity of each? - Correct Answers Mitosis (M), Gap 1 (G1),
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Synthesis (S), Gap 2 (G2)
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a. M -> G1 -> S -> G2
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b. M > G2 > G1 > S
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Il` Cerebellum: Il`




a. Function
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b. Location - Correct Answers a. Motor control, balance
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b. Directly posterior to the brain stem.
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Il` Cerebrum:

a. Function and properties
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,b. Divisions - Correct Answers a. Higher functions: thought, action.
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b. 4 lobes: frontal (anterior), parietal (superior), occipital (posterior), temporal (lateral x 2).
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Il` Cerebral cortex - Correct Answers Sheet of neural tissue outermost to the cerebrum. Grey
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Il` Brain steam function - Correct Answers Basic vital life functions (breathing, heartbeat, etc.
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Il` Corpus callosum - Correct Answers Connects the two parts of the cerebrum.
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{Lets the two hemispheres talk to each other, i.e. "call" each other}
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Il` Alveoli

a. Location
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b. Function - Correct Answers a. Lungs
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b. Air-lung interface. Diffusion of O2, CO2.
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Il` Hiatal hernia Il`




a. Describe condition
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b. Imaging modality to diagnose? - Correct Answers a. Part of the stomach sticks upward into the
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chest through opening in the diaphragm.
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b. UGI x-ray after ingestion of barium.
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Il` Upper gastrointestinal. - Correct Answers UGI. Esophagus, stomach, and duodenum
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Il` Lower gastrointestinal - Correct Answers LGI. Small and Large intestine. Stool.
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Il` US transducers:
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, a. What is the angle of orientation of the two surfaces?
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b. How thick are the transducers in terms of the wavelength?
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c. Are the pressure waves and voltage in phase or out of phase? - Correct Answers a. 180
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degrees.
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b. lambda/2
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c. pressure: in phase. Voltage: out of phase.
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Il` Stroke

a. Describe
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b. Effects - Correct Answers a. sudden loss of consciousness resulting when the rupture or
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occlusion of a blood vessel leads to oxygen lack in the brain
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b. Loss of brain function, ischemia, hemorrhage
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Il` Ischemia - Correct Answers Insufficient blood flow to an area
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Il` Hemorrhage - Correct Answers Flow of blood from a ruptured blood vessels. Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`




Il` Transurethral resection - Correct Answers Small pieces of tissue from a nearby structure Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`




Il` (typically prostate) are removed through the wall of the urethra.
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Il` Foramen magnum - Correct Answers A large hole in the occipital bone (base of skull) for the
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Il` passage of nerves into the spinal cord.
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Il` Liver cirrhosis
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a. Describe
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b. CausesIl`