IB Psychology Test

How can parts of the limbic system be remembered?

Hungry Hounds Ate Pavlov -Hypothalamus -Hippocampus -Amygdala -Pituitary gland

In which situations would insulin be released from the pancreas?

If there was a decrease in blood glucose (sugar) levels

Which part of the brain is composed of nerve cells that filter stimuli?

Reticular formation and passes on important signals

You see a donut on a plate displayed at your local bakery, and your mouth starts watering. Which nervous system allows this to happen?

The autonomic nervous system, and it happens whether you're paying attention to them or not. It is automatic

Human behaviors and feelings are primarily controlled by

The brain, nerves, and hormones

Joseph has Broca's aphasia. What can help him recover his lost abilities?

With treatment, rehabilitation and time for the brain to reorganize and access its other languages, people with brocas can recover some of their ability to communicate

If you were being chased by a lion, which of the glands following would release adrenaline?

Your adrenal glands pump out adrenaline hormones when you are faced with stress or excitement. It releases adrenaline to trigger a reaction

Low levels of serotonin may cause which of the following?

can result in no appetite, low sex drive, mood swings, and inability to sleep. They can also lead to anxiety and depression

What happens when someone has a stroke?

the blood doesn't reach part of their brain causing the cells to die. This brain damage can lead to brocas aphasia

The part of the neuron that receives signals is called a

the dendrites receive the signal while the axons send the signal

The oldest parts of the brain are the

-Brainstem: controls how fast your heart beats and how quickly you breathe -Thalamus: It receives information from your senses and forwards them on to other parts of your brain -Reticular formation: filter stimuli and pass on important signals -Cerebellum: it helps you walk and remember

What are the symptoms people with Broca's aphasia have?

-People with Broca aphasia have damaged to the Broca's area in their frontal lobe, which is one of the parts that processes our ability to speak. People with this damage can usually understand what other people are saying but have trouble speaking themselves. Broca's aphasia has broken speech in the center of the brain

How do the roles of the hippocampus and the hypothalamus differ?

-The hypothalamus helps regulate hunger, and influences your sex drive, thirst, and body temperature -The hippocampus processes long- term memory and used for storage of information

An action potential occurs when a

A neural impulse, or electric current, travels from the dendrites, through the axon, to the terminal branches to be fired to another neuron

Give an example of a parasympathetic response.

A slowed heart rate, slowed/regular breathing, digestion, reproductive regularity

During a refractory period,

After the signal is fired, the neuron goes through a refractory period. What happens in this period is the neuron pumps out the sodium ions. Neurons return back to the original state and is mostly negative

According to biopsychology, eating disorders

Biopsychologists have discovered genetic and biochemical triggers for eating disorders that cause us to rethink a certain condition is " all in the head"

What Biopsychologists study?

Looks at the interplay between biological processes and mental states. Biopsychologist study the lines of communication between your brain, glands, and muscles. They look at the intersection between biology and psychology. They think of the brain as a computer. They are the technicians who discover how the hardware affects how smoothly the software runs

When a male hots puberty, which gland is responsible for telling the testes to release testosterone?

The Pitutiary gland is called the master gland because it secretes hormones that trigger your other glands. It regulates the amount of hormones released by your thyroid, adrenal glands, pancreas and sex glands. It is the command center that controls your body's growth, and signals your ovaries or testes to make testosterone or estrogen

Which of the following are part of the Central Nervous System?

Your brain and spinal cord and is the center of the control system

What is hyperactive thyroid?

Your heart may race and you feel jittery and have trouble falling asleep

When you touch a hot stove, which neurons tell your brain it's hot?

Your motor neurons send information to muscles and glands so you can react

When you're at a restaurant and the waiter comes out with your dinner, which system is responsible for telling your brain that your food has arrived?

Your nervous system is an interconnected network of nerve cells (neurons) that allow you to sense the things going on around you so you can react. Your brain tell you that you're hungry, but your nervous system tells your brain when you see food, and even helps you digest food.

What the pancreas regulates?

Your pancreas regulates how much energy your body gets. Your pancreas produces insulin, the hormone that helps your body absorb sugar in your bloodstream to give it energy

An example of neuroplasticity is

a blind person having developed a heightened sense of smell and hearing

a neurotransmitter is a type of

a chemical signal that works quickly to help you react to everything going on around you. Sensory Neurons sends signals to the brain. This sets off a chain reaction of signals, which are fired off to motor neurons that cause your muscles or other body parts to react

You go for a run around the track, and afterwards, you feel less anxiety and stress. Which neurotransmitter has been released to help you feel this way?

endorphins are fired from your gland neurons to your brain and spinal cord neurons to reduce pain and stress

What does the term neuroplasticity refer to?

Neuroplasticity is the brain's ability to adjust to damage or new experiences

Which part of the neuron do the neurotransmitters travels across to reach another neuron?

Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron

The all-or-none law states that

Once the neuron receives the signal, it has to fire off. There is no stopping once the nerve impulse has been activated. If neurons don't get the signal, they don't fire

The Temporal lobe, Parietal lobe, and Occiptal lobe of the brain process information about __________ respectively.

What you hear (temporal lobe), what you touch (parietal lobe), what you see (occipital lobe)

How can playing a musical instrument impact the brain?

When you flex your mental muscles you can actually grow a larger temporal lobe for processing sound

You touch a hot stove and the sensory neurons are telling your brain its hot. Which part of the neuron is sending the neurotransmitters to other neuron's dendrites to send the signal up to the brain?

The neurotransmitters are thrown across the synaptic gap from one neuron's terminal branch to another neurons dendrites. They get excited by the chemical signal and an electrical current travels to the axon, and the terminal branches at the end of the axon, fire off the neurotransmitters