Unit 3: Brain Structure Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is the autonomic nervous system?

A

The autonomic nervous system consists of the parasympathetic and sympathetic branches of the nervous system and is responsible for the communication between the body’s nonskeletal (visceral) muscles and the internal organs.

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

What does the central nervous system consist of?

A

Brain and spinal cord

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

What is the cerebral cortex?

A

The cerebral cortex is the outer layer of brain. Location of higher mental processes and complex behaviours.

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

What is the corpus callosum?

A

The corpus callosum in the thick band of about 200 million nerve fibres connecting the left and right hemispheres.

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

What is the frontal lobe?

A

The frontal lobe is the largest love of the brain. It has several functions, including initiating movement of the body, language, planning, judgement, problem solving, aspects of personality and emotions. It is extremely well developed in higher mammals. It contains the primary motor cortex and Broca’s area.

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

What is the occipital lobe?

A

The occipital lobe is the section of the cerebral cortex at the rear of the brain.nit is the location of the primary visual cortex and association areas involved with integration of visual stimuli.

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

What is the parasympathetic nervous system?

A

The parasympathetic nervous system is a branch of the autonomic nervous system, responsible for maintaining our day-to-day functioning and for most of the automatic functions of the body such as digestion, heart rate, breathing and some glandular functions.

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

What is the parietal lobe?

A

The parietal lobe is the location of the primary somatosensory cortex in the brain. The parietal lobes enable a person to perceive their own body and to perceive where things are located in their immediate environment.

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

What is the peripheral nervous system?

A

The peripheral nervous system communicates information from the body to the central nervous system (for example aches and pains) and to the body’s organs, glands and muscles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the primary auditory cortex?

A

The primary auditory cortex is located in the upper part of the temporal lobe and receives sounds from the ears.

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

What is the primary motor cortex?

A

The primary motor cortex is located at the rear of each frontal lobe and is responsible for movement of the skeletal muscles of the body.

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

What is the primary somatosensory cortex?

A

The primary somatosensory cortex is located at the front of each parietal lobe and processes sensations such as touch, pressure, temperature and pain from the body.

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

What is the primary visual cortex?

A

The primary visual cortex is located in the occipital lobe and processes information from the eyes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the somatic nervous system?

A

The somatic nervous system is the division of the peripheral nervous system the carries sensory information into the central nervous system, and also carries motor commands from the central nervous system to the skeletal muscles.

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

What is the sympathetic nervous system?

A

The sympathetic nervous system is a branch of the autonomic nervous system that activates the fight-or-flight response.

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

What is the temporal lobe?

A

The temporal lobe is the part of the forebrain beneath the temporal plate of the skull, at the side of the head above the ears. Contains Wernicke’s area and the primary auditory cortex.

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

What is the hippocampus responsible for?

A

Long-term memory and spatial orientation

18
Q

What is the amygdala responsible for?

A

Aggression, fear and emotional memory

19
Q

What is the midbrain responsible for?

A

Coordination of movement, sleep and arousal

20
Q

What I the hypothalamus responsible for?

A

Regulation of emotions and ‘instinctive’ drives

21
Q

What is the pons responsible for?

A

Control of movement, breathing, sleeping, dreams and waking

22
Q

What is the cerebellum responsible for?

A

Perception, cognition, balance and fine muscle control

23
Q

What is the medulla oblongata responsible for?

A

Heartbeat, breathing and other vital bodily functions

24
Q

What are the components of the forebrain?

A

Cerebrum
Cerebral cortex
Hypothalamus
Thalamus

25
Q

What are the components of the midbrain?

A

Reticular formation

26
Q

What are the components of the hindbrain?

A

Cerebellum
Pons
Medulla Oblongata

27
Q

What are the components of the limbic system?

A

Hippocampus

Amygdala

28
Q

What hormones are released during the flight, flight or freeze response?

A

Adrenaline

Cortisol

29
Q

What are the bulges of the brain called?

A

Gyri (singular: gyrus)

30
Q

What are the valleys of the brain called?

A

Sulci (singular: sulcus)

31
Q

What is the deep groove that separates the anterior (front) and posterior (back) of the brain called?

A

Central fissure

32
Q

What is the deep groove that separates the two hemispheres of the brain called?

A

Longitudinal fissure

33
Q

What is the left hemisphere of the brain responsible for?

A

Logical reasoning
Voluntary movement on RHS of body
Processing sensations from the RHS of body
Speech production and reading
Speech comprehension and writing
Analysis (eg. Evaluating, maths, sequential tasks)
Attention to detail (focus on ‘bits’ of info)

34
Q

What is the right hemisphere of the brain responsible for?

A

Creativity and fantasy
Voluntary movement on LHS of body
Processing sensations from the LHS of body
Appreciation for music and art
Spatial and visual thinking (eg. Reading maps)
Recognition of faces and emotions
Holistic info processing (seeing things as a ‘whole’)
Understanding abstract concepts (eg. Metaphors)

35
Q

After his stroke, a patient was unable to recognise his parents’ faces although he could identify their voices.
A scan of the patient’s brain would most likely indicate damage to which lobe?

A

Temporal lobe

36
Q

What is the spinal cord responsible for?

A

Relay of information between the brain and body and some simple reflexes

37
Q

What is the forebrain responsible for?

A

Higher order thinking processes (eg. Problem solving and planning)

38
Q

What is the reticular formation responsible for?

A

Important in the control of arousal in the sleep/wake cycle. Part of both the midbrain and hindbrain

39
Q

What is the pineal gland responsible for?

A

Production of melatonin, which helps maintain circadian rhythm and regulate reproductive hormones

40
Q

What is the thalamus responsible for?

A

Relay of motor and sensory signals to the cerebral cortex and regulation of sleep and alertness

41
Q

How does the sympathetic nervous system affect the body?

A
Dilates pupils
Accelerates heart rate
Dilates bronchi (increasing breathing rate)
Inhibits stomach and pancreas
Relaxes bladder
Stimulates ejaculation
42
Q

How does the parasympathetic nervous system affect the body?

A
Constricts pupils
Stimulates tear glands
Strong stimulation of salivary glands
Slows heart rate
Constricts bronchi
Stimulates stomach and pancreas
Constricts bladder
Stimulates erection