What statement best describes a subdural hematoma? a. Bleeding ...

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What statement best describes a subdural hematoma?
 
  a. Bleeding occurs between the dura and the skull.
  b. Bleeding occurs between the dura and the cerebrum.
  c. Bleeding is generally arterial, and brain compression occurs rapidly.
  d. The hematoma commonly occurs in the parietotemporal region.

Question 2

What statement is descriptive of a concussion?
 
  a. Petechial hemorrhages cause amnesia.
  b. Visible bruising and tearing of cerebral tissue occur.
  c. It is a transient and reversible neuronal dysfunction.
  d. It is a slight lesion that develops remote from the site of trauma.

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Answer to Question 1

ANS: B
A subdural hematoma is bleeding that occurs between the dura and the cerebrum as a result of a rupture of cortical veins that bridge the subdural space. An epidural hemorrhage occurs between the dura and the skull, is usually arterial with rapid brain concussion, and occurs most often in the parietotemporal region.

Answer to Question 2

ANS: C
A concussion is a transient, reversible neuronal dysfunction with instantaneous loss of awareness and responsiveness resulting from trauma to the head. Petechial hemorrhages on the superficial aspects of the brain along the point of impact are a type of contusion but are not necessarily associated with amnesia. A contusion is visible bruising and tearing of cerebral tissue. Contrecoup is a lesion that develops remote from the site of trauma as a result of an accelerationdeceler ation injury.