Eksamen Flashcards

1
Q

The ability of the brain, in development and in adulthood, to be changed by environmental inputs is called

A

Plasticity

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2
Q

A major site of origin of projections using the neurotransmitter dopamine is the

A

Substantia nigra

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3
Q

The hair cells of the semicircular canals are located in the

A

Ampulla (ampullae)

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4
Q

The condition apraxia

A

Is the inability to carry out complex movements in the absence of paralysis or weakness

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5
Q

The basal ganglia are particularly implicated in

A

Motor control

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6
Q

The polygraph, which is claimed to serve as a lie detector, measures

A

Autonomic activity

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7
Q

The primary visual cortex of the right hemisphere

A

receives input originating both eyes

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8
Q

A drug that produces a potent schizophrenia-like state is

A

Phencyclidine (PCP)

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9
Q

Amphetamine belongs to the type of drugs called

A

Stimulants

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10
Q

In a chemical synapse the arrival of an action potential

A

Opens presynaptic voltage-gated calcium channels

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11
Q

The anxiolytic drug diazepam (Valium) belongs to the class of drugs known as

A

Benzodiazepines

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12
Q

Mirror neurons are

A

Found in the ventral portion of the premotor cortex

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13
Q

A grand mal (tonic-clonic) epileptic seizure

A

Includes loss of consciousness and rhythmic tonic-clonic movements

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14
Q

Alzheimer’s disease is consistently associated with the changes in systems using the neurotransmitter

A

Acetylcholine

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15
Q

Within the cerebral cortex, myelination tends to occur first

A

In sensory regions

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16
Q

The oval window is

A

part of the ear

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17
Q

Oxytocin involved in the milk letdown reflex is

A

Released into the blood stream in the posterior pituitary

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18
Q

Patients with lesions of the amygdala

A

Have problems recognising fear in facial expressions

19
Q

Diencephalon

A

Consists of thalamus and hypothalamus

20
Q

Repeated exposure to an agonist drug may lead to down-regulation of receptors. This down-regulation consist of

A

(An excessive amount of a drug is available to the receptor over a period of time, causing) a decrease in the receptor sites that can be counted

21
Q

At the peak of the action potential, the atonal membrane is acting as a

A

“Sodium membrane”

22
Q

The risk of developing Alzheimer’s disease

A

Can be reduced by remaining physically and mentally active

23
Q

When an individual reacts to stress

A

The medulla of the adrenal glands becomes activated and release fast-acting epinephrine and norepinephrine while the adrenal cortex is activated to release more slowly-acting hormones

24
Q

Patients with schizophrenia show defects in the production of

A

Pursuit movements

25
The suprachiasmatic nucleus (SCN)of the hypothalamus
Is involved in the regulation of circadian rhythms
26
Compared to normal individuals, patients suffering depression
Enter REM sleep sooner after sleep onset
27
The medial preoptic area (mPOA) of the hypothalamus
Is involved in male sexual behaviour of the rat
28
Neural circuits regulating body temperature
Are exclusively found several levels including the spinal cord, brainstem and the hypothalamus
29
Stimulation of the _______ produces analgesia in rats
Periaqueductal grey of the brainstem
30
If a cell releases a hormone that affects the cell next to it, the hormone is said to act in _______ fashion
Paracrine
31
Which of the following does not normally change during the life span?
Genotype
32
Melatonin is released almost exclusively
At night
33
Müllerian ducts develop to form
Internal female reproductive structures
34
In depression the Hypothalamic-Pituitary-adrenal (HPA) Axis is
Apparently hyperactive since serum cortisol levels are elevated
35
Stimulation of a photoreceptor results in the generation of _______ in the receptor
A graded hyperpolarization
36
In the neuromuscular junction
Acetylcholine is released and muscle fibres produce action potential
37
The lowest level at which impulses from the two ears interact is the
Olivary nucleus (superior olivary nucleus)
38
Presynaptic autoreceptors
Monitor and regulate the level of transmitter release
39
In contrast to cortical somatorsensory area S1, sensory area S2 maps
Both sides of the body
40
The term “hyperpolarization” refers to
Movement of the resting membrane potential away from 0mV
41
Which hormone is responsible for the contractions of the uterus during childbirth?
Oxytocin
42
Opiate drugs
Reduce the feeling of pain (analgesia) by binding to opiod receptors
43
Somatic intervention refers to
Research procedures that alter the structure or function of the body