Question 1

The ________________ is a structure in the brain stem that connects the top of the brain to the bottom and plays a role in sleep,dreaming,left-right body coordination,and arousal.

Accepted Answer

A) reticular activating system 
B) pons 
C) medulla 
D) cerebellum

Question 2

The fluid-filled space between the synaptic knob of one cell and the dendrites of the next cell is called the:

Accepted Answer

A) receptor site. 
B) synapse. 
C) synaptic knob. 
D) axon terminal.

Question 3

The two main divisions of the nervous system are the ________ and ________.

Accepted Answer

A) brain; spinal cord 
B) autonomic; somatic nervous systems 
C) peripheral nervous system; central nervous system 
D) parasympathetic and sympathetic nervous systems

Question 4

The ________ lobes are located at the top and back of each cerebral hemisphere,containing the centres for touch,body position,and temperature.

Accepted Answer

A) frontal 
B) temporal 
C) occipital 
D) parietal

Question 5

Why do many reflexes,such as pulling your hand away from a hot iron,happen so quickly?

Accepted Answer

A) They involve the neurotransmitter GABA rather than dopamine. 
B) The message involved does not have to go all the way to the brain. 
C) The speed of processing is faster from the extremities to the brain. 
D) The path that reflexes follow to the brain is direct and does not involve any neurotransmitters.

Question 6

Cameron touches a hot iron and immediately pulls his hand away.His quick response occurs because:

Accepted Answer

A) the pain message goes up the spinal column to the central area of the spinal cord instead of going all the way to the brain 
B) the brain has registered that pain is occurring and responds quickly. 
C) his glands have secreted rapid chemical messengers called hormones. 
D) neurons in the spinal cord touch end to end to increase response speed up the pathway.

Question 7

Small metal disks pasted onto Miranda's scalp are connected by wire to a machine that translates the electrical energy from her brain into wavy lines on a moving piece of paper.From this description,it is evident that Miranda's brain is being studied through the use of a/an:

Accepted Answer

A) CT scan. 
B) MRI. 
C) PET scan. 
D) EEG.

Question 8

Which part of the brain did Dr.Andres Lozano stimulate in order to help someone lose weight?

Accepted Answer

A) the hippocampus 
B) the hypothalamus 
C) the hindbrain 
D) the amygdala

Question 9

In which of the following lobes of the cortex would you find the primary auditory area?

Accepted Answer

A) frontal 
B) temporal 
C) occipital 
D) parietal

Question 10

Reuptake is:

Accepted Answer

A) a chemical that is released into the synaptic gap. 
B) a protein molecule on the dendrite or cell body of a neuron that will interact only with specific neurotransmitters. 
C) a process by which neurotransmitters are sucked back into the synaptic vesicles. 
D) a chemical that plays a role in learning and attention.

Question 11

Which part of a neuron is attached to the soma and carries messages out to other cells?

Accepted Answer

A) soma 
B) axon 
C) dendrite 
D) cell membrane

Question 12

Sara has been experiencing a serious memory problem.An interdisciplinary team has ruled out a range of causes and believes that a neurotransmitter is involved.Which neurotransmitter is most likely involved in this problem?

Accepted Answer

A) GABA 
B) dopamine 
C) serotonin 
D) acetylcholine

Question 13

A researcher wants to obtain a "movie" of changes in the activity of the brain using images from different time periods.Which of these would be the best choice for this researcher?

Accepted Answer

A) electroencephalography (EEG) 
B) computerized axial tomography (CT) 
C) positron-emission tomography (PET) 
D) functional magnetic resonance imaging (fMRI)

Question 14

The saclike structures found inside the synaptic knob containing chemicals are called:

Accepted Answer

A) axon terminals. 
B) synaptic gaps. 
C) synaptic vesicles. 
D) receptor sites.

Question 15

Receiving neurons have special ____________ that fit the shape of certain molecules.

Accepted Answer

A) synaptic vesicles 
B) gaps 
C) receptor sites 
D) branches

Question 16

Curare is a poison that works by:

Accepted Answer

A) blocking receptor sites and acting as an antagonist for acetylcholine. 
B) stimulating the release of excessive amounts of acetylcholine. 
C) stimulating the release of neurotransmitters. 
D) blocking the production of inhibitory neurotransmitters.

Question 17

The part of the brain located just behind the temples,containing neurons responsible for the sense of hearing and meaningful speech,is called the:

Accepted Answer

A) temporal lobes. 
B) parietal lobes. 
C) frontal lobes. 
D) occipital lobes.

Question 18

The action potential causes neurotransmitters to be released into the:

Accepted Answer

A) myelin sheath. 
B) axon. 
C) synapse. 
D) synaptic vesicle.

Question 19

The sex glands,which secrete hormones that regulate sexual development and behaviour as well as reproduction,are called:

Accepted Answer

A) ovaries. 
B) the gonads. 
C) the pineal glands. 
D) testes.

Question 20

Which of the following is a machine designed to record the brain wave patterns produced by electrical activity of the surface of the brain?

Accepted Answer

A) PET scan 
B) ESB 
C) EEG 
D) CT scan

Exam 2: The Biological Perspective