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Which of the following arteries enter the Circle of Willis, bringing oxygenated blood from the heart up to the Circle of Willis?

  • The internal carotid artery (ICA) and the vertebrobasilar artery (VBA) (correct)
  • The posterior cerebral artery (PCA), middle cerebral artery (MCA) and the anterior cerebral artery (ACA)
  • The internal carotid artery (ICA) and the anterior cerebral artery (ACA)
  • The posterior communicating artery (PCOM) and the anterior communicating artery (ACOM)

Symptoms such as coma, miotic pupils, decerebrate rigidity, respiratory and circulatory abnormalities and possibly death are associated with which of the following types of arterial occlusions?

  • Internal carotid artery (ICA)
  • Anterior cerebral artery (ACA)
  • Posterior cerebral artery (PCA)
  • Vertebrobasilar artery (VBA) (correct)

True or False? The basal ganglia is primarily concerned with motor control and filters out incorrect or inappropriate movements.

True (A)

If red blood cells (RBCs) are found in a sample of CSF, what would this most likely indicate?

<p>There may be a hemorrhage in the CNS. (C)</p> Signup and view all the answers

Symptoms such as emotional lability, confusion, amnesia, personality changes, urinary incontinence and contralateral hemiplegia or hemiparesis that is greater in the lower than upper extremities are associated with which of the following types of arterial occlusions?

<p>Anterior cerebral artery (ACA) (B)</p> Signup and view all the answers

Choose the correct statement:

<p>The brain stem contains 9 of the 12 nuclei of the cranial nerves. (D)</p> Signup and view all the answers

Name the part of the diencephalon that acts as a sensory relay center where information is sorted, edited, and sent to the appropriate area.

<p>Thalamus</p> Signup and view all the answers

What is George's Test screening for?

<p>if there's sufficient blood flow in the vertebral arteries.</p> Signup and view all the answers

CSF is produced by the , which are located in the ventricles of the brain.

<p>Choroid Plexuses</p> Signup and view all the answers

List 3 of the 5 senses that are carried by the posterior column

<p>2 point discrimination Vibration Stereognosis</p> Signup and view all the answers

A lesion in the spinal cord on the right side of L1 would result in a loss of pain and temperature sensation where?

<p>Left leg only</p> <p>(A)</p> Signup and view all the answers

Which of the following carries 90% of motor fibers?

<p>Lateral corticospinal tract</p> <p>(D)</p> Signup and view all the answers

Which of the following carries subconscious proprioception?

<p>Dorsal &amp; ventral spinocerebellar tracts (D)</p> Signup and view all the answers

A lesion in the brain on the left side would result in a loss of motor function where?

<p>Right arm and right leg (B)</p> Signup and view all the answers

Which of the following carries pain and temperature sensory information?

<p>Lateral spinothalamic tract</p> <p>(D)</p> Signup and view all the answers

A lesion in the brain on the left side would result in a loss of pain and temperature sensation where?

<p>Right arm and right leg</p> <p>(B)</p> Signup and view all the answers

Which of the following only carries sensation from the lower part of the body?

<p>Fasciculus gracilis (C)</p> Signup and view all the answers

Describe a present Babinski's response.

<p>dorsiflexion of big toe and fanning of the other toes</p> Signup and view all the answers

True or False? Upper motor neurons (UMNs) begin in the brain and end in the spinal cord in the posterior (dorsal) horn.

<p>False (B)</p> Signup and view all the answers

A patient comes in complaining of weakness in their left leg. You do a full myotome and DTR exam of the lower extremities. Findings on the right leg are all unremarkable. For the left leg, you note the following results: Hip flexion: rated a 5 Knee extension: rated a 2 Ankle dorsiflexion & inversion: rated a 3 Big toe extension: rated a 5 Ankle plantarflexion & eversion: rated a 5 Patellar reflex: rated a 1+ Achilles reflex: rated a 2+ Which two nerve roots do you suspect may be involved?

<p>L3 and L4</p> Signup and view all the answers

Which nerve root's myotome is tested using ankle plantarflexion and eversion?

<p>S1 (D)</p> Signup and view all the answers

Which nerve root's dermatome involves the medial aspect of the upper arm?

<p>T1 (A)</p> Signup and view all the answers

What is the DTR for C5?

<p>Biceps brachii</p> <p>(C)</p> Signup and view all the answers

Which nerve root's dermatome involves the medial lower leg?

<p>L4 (B)</p> Signup and view all the answers

What is the myotome for C6?

<p>Wrist extension (C)</p> Signup and view all the answers

A patient comes in complaining of numbness along the lateral aspect of their entire right arm, from the shoulder all the way down to the first two fingers. You determine the lung and large intestine channels are involved. Which two nerve roots do you suspect may be involved?

<p>C5 and C6</p> Signup and view all the answers

What is the myotome for L5?

<p>Big toe extension</p> Signup and view all the answers

What is the dermatome for C7?

<p>Third finger into hand</p> Signup and view all the answers

Which nerve root is tested using the patellar DTR?

<p>L4</p> Signup and view all the answers

If there is a lesion in the left optic tract, there will be a visual defect in which of the following?

<p>Right visual field of both eyes</p> <p>(A)</p> Signup and view all the answers

Which cranial nerve innervates the superior oblique muscle?

<p>CN IV (C)</p> Signup and view all the answers

If there is a lesion in the optic chiasm, there will be a visual defect in which of the following?

<p>Peripheral vision (A)</p> Signup and view all the answers

True or False? When shining a bright light directly into only one of a person's eyes, both of their pupils should constrict equally.

<p>True (A)</p> Signup and view all the answers

If there is a lesion in the right optic nerve, there will be a visual defect in which of the following areas?

<p>Entire right eye (B)</p> Signup and view all the answers

How many cranial nerves are there?

<p>12 (C)</p> Signup and view all the answers

Impairment of which cranial nerve will result in internal strabismus (eye is fixed at or tends to the medial canthus)?

<p>CN VI (D)</p> Signup and view all the answers

True or false? At the optic chiasm, only the nasal portion of each optic nerve crosses over to become part of the contralateral optic tract.

<p>True (A)</p> Signup and view all the answers

3 parts of the diencephalon

<p>Thalamus, Hypothalamus, Epithalamus</p> Signup and view all the answers

Parts of the brain stem (from superior to inferior)

<p>Midbrain Pons Medulla Oblongata</p> Signup and view all the answers

What refines motor activity, influences thinking, language and emotion ensures movement are carried out in a smooth, coordinated fashion maintains posture and muscle tone?

<p>Cerebellum (A)</p> Signup and view all the answers

The circle of willis is a key structure in the what type of system is it?

<p>supply of blood to the brain anastomotic system of arteries</p> Signup and view all the answers

What 3 arteries enter the circle from the neck?

<p>Vertebral Basilar Artery (A), Internal Carotid Artery (B)</p> Signup and view all the answers

Flashcards

Capital of France (example flashcard)

Paris

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