Cross Sectional Anatomy
What year was the first dedicated head scanner installed?
1971
The Addison planes are used to classify and subdivide the:
Abdomen
Which limbic system structures are responsible for smell, aggression, and sexual behavior?
Amygdalae
Which artery is the arrow pointing to?
Anterior communicating
Another term for the Transverse plane is:
Axial
Which plane divides the body into superior and inferior portions
Axial
The central portion of each lateral ventricle is called the _____.
Body
Standard anatomy is viewed in the ______ plane.
Coronal
Which is the largest bundle of white matter found between the cerebral hemispheres?
Corpus callosum
Which dural reflection forms a roof over a depression in the sphenoid bone
Diaphragma sellae
The arrow on this image is pointing to the:
Dorsum sellae
Which meningeal layer forms sheet-like folds, or reflections, that divide portions of the brain
Dura mater
Which region is identified by the arrow on this image?
Epigastric
The arrows on the image point to what sinus?
Ethmoid
What is another term for the ear canal?
External auditory meatus
Four slice scanners which debuted in 1994 rapidly evolved into 8 slices, then to 16 slices, then to 32 slices, and then to 64 slices.
False
T1 and T2 are types of relaxation in CT imaging
False
The Addison planes divide 8 regions
False
The arrow is pointing to the Sagittal suture
False
The arrow on this image is pointing at the medulla.
False
The pineal gland is an endocrine structure located just posterior to the third ventricle. Calcification of this gland is an atypical finding on CT
False
The arrows on this image are pointing to which lobe of the brain?
Frontal
Which anatomical landmark is just above the nose and between the eyebrows
Glabella
When a paranasal sinus is overly pneumatized, it is called:
Hyperplastic
Who first described tomographic methods in diagnostic imaging
Karol Mayer
The arrows on this image are pointing to which ventricles?
Lateral
What region is located directly below the left hypochondric region
Left lateral
Which bone transmits sound vibrations from the tympanic membrane to the incus?
Malleus
Which structure in the mastoid portion of the temporal bone is subject to mastoiditis?
Mastoid air cells
The arrow on this image is pointing to the:
Maxilla
The maxillae fuse:
Medially below the nose
Which cavity is centrally located in the thorax and between the thoracic vertebral column and the sternum?
Mediastinum
From inferior to superior, what are the parts of the brainstem?
Medulla, Pons, midbrain
Which common paranasal variant is a posteriorly located Ethmoid air cell occurring extremely close to the optic nerve
Onodi cell
What is the foramen magnum
Passage for the medulla oblongada
The arrow on this image is pointing to the:
Precentral gyrus
Which plane is demonstrated in this image?
Sagittal
What structure within the sphenoid bone protects the pituitary gland
Sella turcica
What is the function of the crista galli?
Serves as attachment point for the falx cerebri
Which sinus empties into the internal jugular veins
Sigmoid
"Tomos" is Greek for _____ and "graph" means _____
Slice, drawing
Which bone is the arrow pointing to?
Sphenoid
Blood flows into the great cerebral vein of Galen, then into the ______.
Straight sinus
How can you differentiate between a suture and a fracture?
Sutures are typically located in specific/fixed areas
Which anatomical landmark can help locate the brachial plexus?
T1
Which of the following is NOT part of the midbrain?
Thalamus
The primary function of the hypothalamus is:
To control the autonomic activity of the body.
Cost is a disadvantage with cross sectional imaging.
True
In 1895 Wilhelm Conrad Roentgen discovered x-rays
True
In most patients L4 coincides with the Iliac crests.
True
In older patients, the temporal horns of the lateral ventricles are usually larger and become visible farther anteriorly as compared to younger patients because of cerebral volume loss.
True
The temporomandibular joint is a ginglymoarthrodial joint
True
The superior portion of the hypogastric region begins at the:
Umbilical area, level of L1
Which cranial nerve is responsible for the parasympathetic innervation of the heart?
Vagus
What is the highest point of the cranium?
Vertex
Which substance is defined as zero on the Hounsfield scale
Water
