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
Q

The suprachiasmatic nucleus (SCN)of the hypothalamus

A

Is involved in the regulation of circadian rhythms

26
Q

Compared to normal individuals, patients suffering depression

A

Enter REM sleep sooner after sleep onset

27
Q

The medial preoptic area (mPOA) of the hypothalamus

A

Is involved in male sexual behaviour of the rat

28
Q

Neural circuits regulating body temperature

A

Are exclusively found several levels including the spinal cord, brainstem and the hypothalamus

29
Q

Stimulation of the _______ produces analgesia in rats

A

Periaqueductal grey of the brainstem

30
Q

If a cell releases a hormone that affects the cell next to it, the hormone is said to act in _______ fashion

A

Paracrine

31
Q

Which of the following does not normally change during the life span?

A

Genotype

32
Q

Melatonin is released almost exclusively

A

At night

33
Q

Müllerian ducts develop to form

A

Internal female reproductive structures

34
Q

In depression the Hypothalamic-Pituitary-adrenal (HPA) Axis is

A

Apparently hyperactive since serum cortisol levels are elevated

35
Q

Stimulation of a photoreceptor results in the generation of _______ in the receptor

A

A graded hyperpolarization

36
Q

In the neuromuscular junction

A

Acetylcholine is released and muscle fibres produce action potential

37
Q

The lowest level at which impulses from the two ears interact is the

A

Olivary nucleus (superior olivary nucleus)

38
Q

Presynaptic autoreceptors

A

Monitor and regulate the level of transmitter release

39
Q

In contrast to cortical somatorsensory area S1, sensory area S2 maps

A

Both sides of the body

40
Q

The term “hyperpolarization” refers to

A

Movement of the resting membrane potential away from 0mV

41
Q

Which hormone is responsible for the contractions of the uterus during childbirth?

A

Oxytocin

42
Q

Opiate drugs

A

Reduce the feeling of pain (analgesia) by binding to opiod receptors

43
Q

Somatic intervention refers to

A

Research procedures that alter the structure or function of the body