PSYC 355 - Midterm Practice

2024

Ions can pass through the neuronal membrane through…

Protein channels

The most common type of synapse in mammals is…

Chemical

What component of the neuron that allows it to be thinner and more efficient with regard to action potentials?

Myelin

In the blood-brain barrier, the blood vessels only have this instead of fenestra:

Tight junctions

The equilibrium potential and the resting membrane potential will differ depending upon…

Polarization

The skin receptors are very dense in the _____ and _____, making these areas very sensitive to the touch.

Lips; fingertips

Which fissure divides the two cerebral hemispheres?

Longitudinal fissure

The spinal cord is part of which nervous system?

Central nervous system

Which od the following terms refers to the cell body of a neuron?

Soma

The salty liquid inside a cell is called the…

Cytoplasm

Which neurotransmitter is the most affected by the drug MDMA?

Seretonin

Most individuals with colour blindness have…

Partial colour blindness

If you imagine a brain starting at the middle and moving toward the ears, the direction is…

Lateral

Visual information from the left _____ is processed by the _____ visual cortex.

Visual field; right

The particular type of neuron that carries information from the toe to the brain is called the….

Dorsal root ganglion

The equation to calculate the charge when a single ion will no longer flow in or out of a cell is called…

Nernst equation

The phase of neuronal development when cells begin to rapidly divide and multiply is called…

Proliferation

Once the vesicles fuse with the membrane, they release their contents into the…

Synaptic cleft

What is the basic taste that is stimulated when enjoying a juicy beef burger?

Umami

The “G” in protein-coupled receptors refers to…

Guanosine

Considering the sound sensitivity of the ear, the amount of hair cell movement required for the brain to perceive sound is the equivalent to…

The width of your thumb at the top of the Eiffel Tower when it bends

The neurotransmitter most important for regulating blood pressure is…

Dopamine

The brain structure that translates into “Little Brain” is called the…

Cerebellum

In this course, it has been stated that the brain is a very expensive organ in terms of metabolism. Why is that, and what are the implications?

X

If we increase the potassium ion (K⁺) concentration outside a neuron while it is at rest, what happens to the membrane potential?

X