PSYCH 122 CH 2
Phoebe recently suffered a major fall in which she sustained brain injuries. Since then, she has had immense difficulty in communicating with others. She appears to understand what others tell her, but her responses are slow and laborious. Her sentences are always incomplete, with important grammatical words missing. Which of the following conditions best reflects Phoebe's case?
Broca's aphasia
In humans, the fight-or-flight response is an unnatural response to external stimuli or danger.
False
Compared to the rest of our bodies, which of the following is a feature of gray matter?
It consists of non-myelinated neurons
The amygdala controls the adrenal gland which releases ____ into the body.
Adrenaline
In the brain's limbic system, the 'fight-or-flight' response begins in the_____
Amygdala
The amygdala is an almond-shaped structure located in the limbic system.
True
The left hemisphere of the brain is relatively more involved in tasks that require logic and problem solving than the right hemisphere.
True
Every time a neuron fires, it transmits an impulse of the same strength. This occurrence is known as the __________.
all-or-none principle
The brain and the spinal cord make up the _______, which controls and commands bodily functions.
central nervous system
A __________ takes several X-rays to reveal deformities in shape and structure that are connected with blood clots, tumors, and other health problems.
computerized axial tomography scan
Messages from the brain or spinal cord are transmitted to muscles or glands through _______.
motor neurons
A neuron sends _______ to relay its message to another neuron.
neurotransmitters
Labib has been having severe epileptic seizures since a very young age. His seizures have become less frequent since he underwent an operation. However, he has problems expressing what he feels. When he feels happy, his facial expressions often show anger. Labib has most likely undergone a(n) _______ operation.
split-brain
The hearing or auditory area of the cortex lies in the _______ lobe along the lateral fissure of the cerebral cortex.
temporal
During puberty, __________ stokes the growth of muscle and bone and the development of primary and secondary sex characteristics in a male body.
testosterone
