Ch. 2

The left hemisphere of the brain is relatively more involved in tasks that require logic and problem solving than the right hemisphere. Select one: True False

True

A neuron sends _______ to relay its message to another neuron. Select one: a. nuclei b. hormones c. neurotransmitters d. electricity

c. neurotransmitters

In humans, the fight-or-flight response is an unnatural response to external stimuli or danger. Select one: True False

False

The amygdala is an almond-shaped structure located in the limbic system. Select one: True False

True

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? Select one: a. Broca's aphasia b. Epilepsy c. Retrograde amnesia d. Wernicke's aphasia

a. Broca's aphasia

During puberty, __________ stokes the growth of muscle and bone and the development of primary and secondary sex characteristics in a male body. Select one: a. testosterone b. vasopressin c. estrogen d. norepinephrine

a. testosterone

A __________ takes several X-rays to reveal deformities in shape and structure that are connected with blood clots, tumors, and other health problems. Select one: a. magnetoencephalography scan b. computerized axial tomography scan c. complete blood count test d. radio frequency identification system

b. computerized axial tomography scan

The amygdala controls the adrenal gland which releases ____ into the body. Select one: a. Serotonin b. Testosterone c. Adrenaline d. Estrogen

c. Adrenaline

The brain and the spinal cord make up the _______, which controls and commands bodily functions. Select one: a. peripheral nervous system b. somatic nervous system c. central nervous system d. autonomic nervous system

c. central nervous system

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. Select one: a. osseous resective b. multiple subpial c. split-brain d. gastric bypass

c. split-brain

The hearing or auditory area of the cortex lies in the _______ lobe along the lateral fissure of the cerebral cortex. Select one: a. frontal b. parietal c. temporal d. occipital

c. temporal

Compared to the rest of our bodies, which of the following is a feature of gray matter? Select one: a. It is a neurotransmitter that controls muscles. b. It contains only inhibitory neurotransmitters. c. It consists of gray platelets. d. It consists of non-myelinated neurons.

d. It consists of non-myelinated neurons.

Every time a neuron fires, it transmits an impulse of the same strength. This occurrence is known as the __________. Select one: a. refraction effect b. polarization effect c. resting potential d. all-or-none principle

d. all-or-none principle

Messages from the brain or spinal cord are transmitted to muscles or glands through _______. Select one: a. Schwann cells b. afferent neurons c. glial cells d. motor neurons

d. motor neurons

In the brain's limbic system, the 'fight-or-flight' response begins in the_____ Select one: a. Hippocampus b. Amygdala c. Thalamus d. Spinal Cord

b. Amygdala