the three part brain Flashcards

(58 cards)

1
Q

What does the 3 part brain of vertebrates include?

A

The fore brain, mid brain, and hind brain

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2
Q

What are examples of cortexes?

A

Cerebellum and cerebrum

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3
Q

What are the two subdivisions of the hind brain?

A

Medulla oblongata and the cerebellum

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4
Q

What are the two subdivisions of the fore Brain?

A

Cerebrum and diencephalon

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5
Q

What is the name of the several connective tissue layers that enclose the brain?

A

Meninges

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6
Q

What kind of centers control does the medulla oblongata have, and where is it located?

A

Reflex centers control, and the hind brain

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7
Q

What does the reflex centers include that the medulla controls? (3)

A

Balance , essential rhythms , simple behaviors assos. With pharynx , mouth, upper digestive , respiratory

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8
Q

What is an example of an essential rhythm ?

A

Heart and breathing rate

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9
Q

What’s an example of simple behaviors controlled by the medulla ? (4)

A

Sneezing , coughing , vomiting , salivation

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10
Q

What are the two functions of the cerebellum and where is it located ?

A

Keeps track of body position during motion, and intended motions, integrates the two perfectly. It’s located in the hind brain

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11
Q

How does the cerebellum affect motion?

A

Makes smooth motions

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12
Q

What reflexes does the mid brain govern?

A

Visual and auditory response

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13
Q

What is the highest integrative center in the brain of anamniotes (frogs and amphibs)

A

Midbrain

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14
Q

What’s an example of a visual reflex controlled by the mid Brain?

A

Pupil dilation in different light

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15
Q

What are the 2 ways that the diencephalon has overall subconscious control over internal function?

A

Nerves (autonomic nervous system ) and pituitary gland

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16
Q

Where is the diencephalon located ?

A

The fore brain

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17
Q

What is the highest integrative and memory center for amniotes ?

A

Cerebrum

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18
Q

What controls the reflex center for chemical senses? What’re chemical senses?

A

Cerebrum and smell / taste

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19
Q

What is the executive command center for body motion ?

A

Cerebrum

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20
Q

What do we have senses through?

A

Sensory dendrites and receptors

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21
Q

What are the specialized cells that activate sensory dendrites ?

A

Receptors

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22
Q

What are the three kinds of receptors ?

A

Proprioceptors , Exteroreceptors , interoceptors

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23
Q

What receptor informs the brain of the body’s position and movement in space ?

A

Proprioceptor

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24
Q

What receptor monitors the body relative to the outside world? (Detects info from the outside world)

A

Exteroreceptors

25
What receptor monitors the internal state of the body?
Interoceptors
26
What are the two types of sense ?
Somatic and special
27
What are somatic senses?
Assos. With the skin
28
What are special senses?
Assos with specialized organs or tissues in dedicated nerves
29
What are dedicated nerves?
Chemical sense via chemoreceptors
30
Where are chemoreceptors located?
Found in epithelia
31
What is another name for the sense of taste ?
Gustatory
32
What receptors are clustered in buds, and can be found in the mouth / pharynx and in epithelia ?
Gustatory
33
What is fully required for the full function of the gustatory sense ?
Olfactory sense
34
Are there tons or a few types of receptors for gustatory sense?
There’s a few
35
Where is some of the olfactory senses located in humans? Where is it in fish?
In the nasal cavity , and in fish a nasal sack
36
What kind of sense is olfactory ?
Chemical sense
37
Does olfactory sense have many receptors or only a few?
Many different receptors
38
Where are photoreceptors located?
In the retina of the eye
39
Do photoreceptors mitotically divide?
No they don’t
40
What responds to light intensity in the eye?
Rods
41
What responds to the energy levels in light , like color?
Cones
42
What’s important in nocturnal animals ?
Rods
43
What are abundant in diurnal animals ?
Cones
44
What’re the receptors assos with hair cells in the epithelia ?
Mechanoreceptors
45
Do mechanoreceptors mitotically divide ?
No they don’t
46
What are the three senses assos with hair cells in the epithelia ?
Dynamic equilibrium, static equilibrium, and auditory equilibrium
47
What is the sense of motion and change of rate?
Dynamic equilibrium
48
What is the sense of gravity , like up and down?
Static equilibrium
49
What’s the sense of vibration of surrounded medium?
Auditory sense
50
What happens when the microvilli of a hair cell is bent ?
Sensory signal is sent to brain
51
Where is the auditory senses of fish located at?
In the tubes of lateral line system
52
What does the skin of the lateral line respond to?
Water vibrations
53
Where are the hair cells in a tetrapod ?
Cochlea
54
What do the hair cells in the cochlea respond to ?
Air vibrations
55
What is related to body motion?
Dynamic equilibrium
56
What does body motion shove the hair cells through ?
Stable fluid with in the semicircular canals
57
What is related to body position?
Static equilibrium
58
What causes sheets of gel weighted with mineral otoliths to slide over , what does they result in?
Change in body position and it results in the hair cells being excited