Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Psychology > Biological Psychology > Flashcards

Biological Psychology Flashcards

You may prefer our related Brainscape-certified flashcards:
Psychology 101 flashcards GRE® Psychology flashcards AP® Psychology flashcards
1
Q

What are the 3 divisions of the brain?

A

Forebrain, midbrain and hind brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is in the hind brain?

A

Medulla and Cerebellum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the functions of the hindbrain?

A
  • Connects spinal chord to the brain
  • It controls primative actions including: sleep, hunger, thirst, balance, coordination, arousal and attention
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the function of the medulla

A

Controls unconscious functions such as heart rate, blood pressure, breathing, and many involuntary reflexes such as swallowing and sneezing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the function of the cerebellum

A

Controls posture and balance, and coordinates fine motor movements.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the function of the midbrain?

A

Is is the upper section of the brain stem, and relays messages from the brain stem to the cerebrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where is the riticular formation located and what is its function?

A

Located in the mid brain, controls sleep and wake cycle and arousal and attention

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the function of the forebrain?

A

Controls higher order functioning, how we think feel and behave - its what makes up human. Revieves info from hind brain and midbrain to coordinate and regulate functions of the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What parts of the brain are included in the forebrain?

A
  • Thalamus
  • Hypothalamus
  • Cerebral cortex (Cerebrum)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the function of the thalamus?

A

Filters all sensory information sent to brain (except smell) then directs the info to the appropriate areas.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the function of the hypothalamus?

A

Regulates hormones to control our body temp, biological clock, sex drive, thirst, and hunger needs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the function of the cerebral cortex?

A

Contains all the brains association and primary functioning areas. It allows organisms to perceive, understand, and interact with the world around them.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the 4 lobes of the brain?

A
  • Frontal lobe
  • Parietal lobe
  • Occipital lobe
  • Temporal lobe
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the left hemisphere associated with?

A

Logic, language, analytical thought and crntrol of the right side of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the right hemisphere associated with?

A

Creativity, imagination, musical awareness and control of the left side of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is contralateral control?

A

When each hemisphere controls the opposite side of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the function of the corpus callosum?

A

It is a band of fibers that allow the 2 hemispheres to communicate

18
Q

What is in the central nervous system?

A

Brain and spinal chord

19
Q

What 2 systems make up the peripheral nervous system?

A

Somatic NS and Autonomic NS

20
Q

What are the 2 parts of the autonomic nervous system?

A

Sympahetic NS and parasympathetic NS

21
Q

What is the brains role in the CNS?

A

Receives information from the peripheral nervous system. Acts as the command and control centre for almost everything we do.

22
Q

What is the spinal chords role in the CNS?

A

The spinal cord is an extension of your brain stem and acts as the main highway for information being sent between areas of your body. Controls motor reflexes, receives afferent (sensory) messages, relays efferent (motor) messages.

23
Q

What is the role of the peripheral nervous system?

A

Receives information from the outside world through the senses, sends sensory (afferent) information to the CNS, receives motor (efferent) responses from the CNS.

24
Q

What is the role of the somatic NS?

A

Controlls voluntary movements of skeletal muscles.

25
Q

What is the role of the autonomic NS?

A

Controls involuntary functions of the internal muscles, organs & glands.

26
Q

What is the role of the sympathetic NS?

A

“Fight or Flight” response, heightens awareness, increases heart rate, adrenaline, dilated pupils (S = stress)

27
Q

What is the role of the parasympathetic NS?

A

“Rest and Digest” response, calms the body when no longer under threat. Slows, heart rate, breathing rate, reduces adrenaline, slows the mind (P = peace)

28
Q

What messages do motor neurons send?

A

Efferent (motor) messages

29
Q

What do interneurons do?

A

Carry messages between the motor and sensory neurons in the CNS. Involved in the reflex arc (in the spinal cord).

30
Q

What messages do sensory neurons send?

A

Afferent (sensory) messages

31
Q

What is a dendrites function?

A

Contain receptors that receive neurotransmitters released by other neurons. Sends electrical impulse to the soma (cell body) when stimulated.

32
Q

What is the cell body’s function in a neuron?

A

Receives electrical impulses from dendrites.
Decides whether to continue signal or not based off the all-or-nothing principle.

33
Q

Explain the all-or-nothing principle

A

When the threshold of stimulation is reached, a neuron it is “all in”, meaning that it will fire – continuing the message along. If the threshold is not reached, the neuron will not fire.

34
Q

What is the axon’s function?

A

Extension of the cell body that carries electrical messages sent by soma. Contains many ion channels that open & close, allowing many charged ions to enter or exit – continuing the electrical message.

35
Q

What does the mylein sheath do?

A

Protects and insulates the axon allowing for faster electrical impulses cos of the Nodes of Ranvier.

36
Q

What do the nodes of ranvier do?

A

Gaps between the myelin sheath where the ion channels allow the current to jump between nodes – speeding up the message.

37
Q

What is the function of the axon terminal?

A

End of the axon, which contain vesicles of neurotransmitters. If the electrical impulse reaches here, neurotransmitters are released across synapse to next neuron.

38
Q

What is the synapse?

A

The gap between neurons where neurotransmitters diffuse across before binding to the receptors of the next neuron

39
Q

What is the resting potential?

A

When the neuron is at rest, sitting at -70mV

40
Q

What forms an action potential?

A

Each time a neurotransmitter binds to a dendrites receptor, the neuron is stimulated, causing it’s internal voltage slightly increases. If the voltage hits the threshold of -55mV, an action potential forms, continuing the message on.

41
Q

What are the 4 parts of the action potential?

A

Depolarisation: neuron “fires” (massive voltage increase).

Repolarisation: neuron voltage returns to resting state (voltage drop).

Hyperpolarisation: voltage overshoot.

Refractory period: time in which an action potential cannot be created while neuron regains resting voltage.

Psychology (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions