Biology & Brain Flashcards

(57 cards)

1
Q

Hypothalamus function

A

Maintains homeostasis and integrates with the endocrine

Hunger and thirst; emotion

Feeding, fighting, flighting , fucking

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2
Q

Lymbic system function

A

Emotion & memory

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3
Q

Basal ganglia function

A

Movement

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4
Q

Cerebral cortex function

A

Complex perceptual, cognitive and behavior processes.

Determining Intelligence
Determining Personality
Motor Function
Planning and Organization
Touch Sensation
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5
Q

Inferior and superior colliculi is found in what major division of the brain and what is the function?

A

In the mid brain

Sensorimotor reflexes

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6
Q

Cerebellum function

A

Helps maintain posture and balance and coordinates body movements

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7
Q

Medulla oblongata function

A

Vital functioning (breathing, digestion)

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8
Q

Reticular formation function

A

Arousal and alertness

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9
Q

Hindbrain

A

Controls balance, motor coordination, breathing, digestion and general arousal processes such as sleeping and waking

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10
Q

Hindbrain is also known as

A

Rhombencephalon

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11
Q

Pons

A

Lies in the medulla and contains sensory and motor pathways between the cortex and medulla

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12
Q

Midbrain is also known as

A

Mesencephalon

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13
Q

Midbrain

A

Deals with involuntary reflex responses triggered by visual and auditory stimuli

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14
Q

Forebrain also known as

A

Prosencephalon

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15
Q

Telencephalon forms the:

A

Cerebral cortex
Basal ganglia
Limbic system

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16
Q

Diencephalon forms the

A

Thalamus
Hypothalamus
Posterior pituitary gland
Pineal gland

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17
Q

Thalamus function

A

Consciousness, sleep and sensory interpretation

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18
Q

Electroencephalogram (EEG)

A

Noninvasive mapping procedure
Electric activity generated by larger groups of neurons
Electrodes on scalp

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19
Q

Regional cerebral blood flow (rCBF)

A

Noninvasive mapping procedure

Detects broad patterns of neural activity based on blood flor to different parts of the brain

Relies on the assumption that when a specific cognitive function activates certain regions of the brain, the blood flow to those regions increase.

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20
Q

Lateral hypothalamus

A

The hunger center

Has special receptors to detect when the body needs more food or fluids

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21
Q

Ventromedial hypothalamus (VMH)

A

The “satiety center”

Provides signals to stop eating

Brain lesions in this area lead to obesity

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22
Q

Anterior hypothalamus

A

Controls sexual behavior

Can also regulate sleep and body temperature

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23
Q

Posterior pituitary

A

Secretes: Antidiuretic hormone (ADH) and oxytocin

24
Q

Pineal Gland

A

Secretes: melatonin

25
Basal ganglia
Found in the middle of the brain Coordinates muscle movement
26
Destructions of portions in the basal ganglia lead to :
Parkinson's disease
27
Septal nuclei
Romario pleasure centers in the brain Mild stimulation leads to intense pleasure
28
Amygdala
Controls fear and aggression
29
Hippocampus
Plays a role in learning and memory Communicates with parts of the Limbic system through an extension called the fornix
30
Anterograde amnesia
Kind of memory loss Can't remember long term memories but could remember events that occurred before brain injury
31
Retrograde amnesia
Kind of memory loss Can't remember events that happened before brain injury
32
Gyri and Sulci
Bumps found on the cortex
33
The cerebral cortex provides _________ to the brain
Increased surface area
34
Visual system DOMINANT hemisphere :
Letters and words
35
Visual system NONDOMINANT hemisphere :
Faces
36
Auditory system DOMINANT hemisphere :
Language - related sounds
37
Auditory system NONDOMINANT hemisphere :
Music
38
Language DOMINANT hemisphere :
Speech, reading, writing, arithmetic
39
Language NONDOMINANT hemisphere :
Emotions
40
Movement DOMINANT hemisphere :
Complex voluntary movement
41
Spatial processes NONDOMINANT hemisphere :
Geometry, sense of direction
42
Prefrontal cortex
Reminds the individual that he or she has something to remember (but does not store an memory traces)
43
Prefrontal cortex communicates with
The reticular formation in the brain stem, telling an individual to wake up or to relax
44
Prefrontal lesions
A person is more impulsive and in less control of his or her behavior or is depressed Can make vulgar and inappropriate sexual remarks
45
Frontal lobe contains
Association area Brocas area Projection area
46
Broca's area
Important for speech production Usually found in the "dominant" hemisphere - left hemisphere
47
Frontal lobe function
Controls executive function, impulse control, long - term planning, motor function and speech production
48
Parental lobe contains
The somatosensory cortex
49
Parental lobe function
Controls sensations of touch, pressure, temperature and pain; spatial processing; orientation; and manipulation
50
Occipital lobe contains
Visual cortex (aka striate cortex)
51
Occipital lobe function
Controls visual processing
52
Temporal lobe contains
Auditory cortex | Wernicke's area
53
Temporal lobe function
Controls sound processing, speech perception, memory and emotion
54
Cerebral hemispheres
2 : left and right For most people, left hemisphere is the most dominant one
55
Dominant hemisphere
Usually the left one Language Logic Math skills Broca's area Wernicke's area
56
Nondominant hemisphere
Usually the right Intuition Creativity Music cognition Spatial processing Less prominent role in Language Interprets language according to its emotional tone
57
what connects both hemispheres of the brain
Corpus collosum