Biopsychology exam 2

Evidence suggests that humans have about ______ different types of olfactory receptors.

350.

Gustatory afferents leave the mouth as part of the

All the above.

Smell and taste

All the above.

The laterial geniculate nuclei, medial geniculate nuclei, and ventral posterior nuclei are all

All the above. (Diencephalic nuclei, thalamic nuclei, & sensory relay nuclei.)

Which drug was extracted from the belladonna plant and used by the ancient Greeks for cosmetic purposes?

Atropine.

The discovery of conditioned taste aversion challenged the

Both A and B. ( principle of equipotentiality & the belief that terporal contiguity is necessary for conditioning).

The reason why radioactive 2-DG is useful for revealing the level of activity of neurons in different parts of the brain is that 2-DG

Both A and C. (Is absorbed by neurons in relation to their level of activity, & is metabolized by neurons in relation to their level of activity.)

Na+ ions are continuously forced into neurons by

Both B and C. (Their high internal concentration and their high external concentration.)

Which of the following is currently thought to be a valid general principle of synaptic transmission?

None of the above.

The enzyme whose function is to deactivate a specific neurotransmitter once it has been released in the synapse is

acetylcholinerase.

The myencephalon is

all the above.

The loudness, pitch, and timbre of a sound are directly related to the ___________, respectively, of the vibrations that produced it.

amplitude, frequency, and complexity.

The release of neurotransmitter molecules from buttons is often triggered by

an influx of calcium ions.

The self-stimulation paradigm is

an operant conditioning paradigm.

Which of the following brain lesion techniques is least likely to be associated with damage to major blood vessels?

aspiration lesions.

Both presynaptic facilitation and inhibition are mediated by

axoaxonic synapses.

The tip of your nose is

caudal and anterior.

Between the frontal and partietal lobes is the

central fissure.

The major auditory projections of the inferoir coliculi go to the

cochlear nuclei.

The axons of the olfactory receptors run through the

cribiform plate to the olfactory bulbs.

The hypothalamus and thalamus compose the

diencephalon.

A major limbic system tract is the

fornix.

Tracts are to nuclei as neves are to

ganglia.

The longest neuron in the human body

has its cell body in the spinal cord.

Which of the following procedures employs labeled antibodies?

immunocytochemistry.

Which ossicle is attatched to the round window?

malleus.

Which neurotransmitters are often released from string-of-beads axons?

monoamines.

PNS is to CNS as Schwann calls are to

ogligodendrocytes.

Alpha wave EEG activity is associated with

relaxed wakefulness.

IP, SC, and IM are

routes of drug administration.

Cocaine and amphetamines in high doses can produce a temporary disorder that is similar to

schizophrenia.

Metabotropic receptors are linked to

signal proteins and G proteins.

Asomatognosia is ogten associated with

stereognosis.

Together, the caudate and the putamen compose the

striatum

With gland or glands directly influence the SCL and the SCR?

sweat glands.

___________ are found in ___________, which are often located around small proterberances called _____________.

taste receptors, taste buds, papillae.

Three major structures in the _____________ of the brain are named after colors (red, black, and grey).

tegmentum.

A membrane potential is the difference in electrical charge between

the inside and the outside of a cell.

Actional potentials are produced by

the opening of voltage-activated sodium channels.

Drugs that do not penetrate the blood brain barrier can be administered to particular neural structures

through a sterotaxically positioned cerebral cannula.