BRAIN Flashcards

1
Q

Which of the following areas serves as a link between the nervous system and endocrine systems?

a. Cerebellum
b. Cerebrum
c. Pons
d. Medulla Oblongata
e. Hypothalamus

Describe the mechanisms by which this region serves as a link between these two systems.

A

e. Hypothalamus

Tracts (ascending, descending) = Communication between the two systems
Also releases hormones; directly linked to pituitary

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2
Q

The two cerebral hemispheres are separated by the

a. Longitudinal fissure
b. Central sulcus
c. Lateral sulcus
d. Longitudinal sulcus
e. Parieto-Occipital sulcus

A

a. Longitudinal fissure

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3
Q

The central sulcus separates the frontal lobe from the

a. Parietal lobe
b. Frontal lobe
c. Temporal lobe
d. Occipital lobe
e. Insula

A

a. Parietal lobe

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4
Q

The white matter (axons) of the cerebrum that are shorter and connect gyri within the same hemisphere

a. Arcuate fibers
b. Longitudinal fibers
c. Commissural fibers
d. Projection fibers
e. Insula

A

a. Arcuate fibers

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5
Q

The folds of the cerebral hemispheres designed to increase surface area of the cerebral cortex are known as _____

A

Gyri

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6
Q

The primary sensory cortex is located in the region of the

a. Precentral gyrus
b. Postcentral gyrus
c. Acruate gyrus
d. Corpus collosum
e. Parieto-occipital lobe

A

b. Postcentral gyrus

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7
Q
  1. In which region of the CNS would you expect to find the Corpora Quadrigemina?
  2. List all components of the corpora quadrigemina and describe functions of each
A
  1. Midbrain/mesencephalon
  2. Superior Colliculi: Visual information
    Inferior colliculi: Auditory information
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8
Q

The integration center of the cerebral center that coordinates sensory information from multiple regions in order to predict where things will be in time and space that allows us to analyze and predict future events and control moral thoughts and standards is called:

a. Speech centers
b. Association centers
c. White matter nuclei
d. Pre-Frontal cortex

A

d. Pre-frontal cortex

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9
Q

The regions of the cortex that interpret incoming data or coordinate a motor response are known as

a. Sensory cortex
b. Motor cortex
c. Association Areas
d. Gustatory Cortex

A

c. Association areas

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10
Q

Which of the following is a function of the pineal gland in the thalamus?

a. Secretes melatonin
b. Stores memories
c. Process sensory information and relay it to other locations in the CNS
d. Regulate the function of the pituitary gland

A

a. Secretes melatonin

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11
Q

Describe the neural components of that compose the following structures:
Ventral Root
Dorsal Root
Dorsal Root Ganglia

A

Ventral root: Receives and interprets motor response (motor neuron axons)

Dorsal root: Receives and interprets sensory response to brain (axons)

Dorsal root ganglia: Bundles of cell bodies

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12
Q

The corpus collosum is a large section of white matter that is composed of

a. Arcuate fibers
b. Association fibers
c. Longitudinal fasciculi
d. Commissural fibers

A

d. Commissural fibers

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13
Q

The two hormones directly secreted by the hypothalamus are ________ and ________.

A

ADH and Oxytocin

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14
Q

________ is the meningeal layer that directly covers the spinal cord

A

Pia mater

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15
Q

_________ is the middle meningeal layer that surrounds the spinal cord

A

Arachnoid mater

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16
Q

Dural folds of the dura mater separate different regions of the brain. The dual fold that separates the cerebellum from the cerebrum is called the __________

A

Tentorium

17
Q

The space between arachnoid mater and the pia mater is known as the subarachnoid space. It is filled with a circulating fluid known as ____________

A

CSF (Cerebrospinal fluid)

18
Q

The region of the brain that controls learned and reflexive muscle movements at the subconscious level is the

a. Frontal lobe
b. Pons
c. Cerebellum
d. Medulla Oblongata
e. Midbrain

A

c. Cerebellum

19
Q

Alcohol consumption can affect the cerebellum and produce a disturbance in muscle coordination known as:

a. Peduncles
b. Aphasia
c. Parkinson’s
d. Ataxia

A

d. Ataxia

20
Q

Purkinje Cells

A

Found in neural Cortex of gray matter in cerebellum
Extensive dendrites that receive signals 200k times stronger than any other
without them = lower ability to perform motor functions

21
Q
  1. CNS region where pneomotaxic center is found
  2. Normal function
  3. If damaged?
A
  1. Respiratory nuclei in pons
  2. Respiratory nuclei in pons to help regulate breathing in the body.
  3. Inability to exhale smoothly, increased heart rate
22
Q

Jason experiences head trauma that has resulted in his inability regulate his heart rate. Most likely, you would assume he has damaged neural tissue located in the:

a. Pons
b. Medulla Oblongata
c. Epithalamus
d. Hypothalamus
e. Cerebellum

A

b. Medulla Oblongata

23
Q

Which of the following would you most likely find within the epidural space of the spine?

a. Cerebrospinal fluid
b. Blood
c. Adipose tissue
d. An open air-filled cavity
e. None of the above

A

c. Adipose tissue

24
Q

The neurons in the substancia nigra release:

a. Acetylcholine
b. Serotonin
c. Dopamine
d. GATA

A

c. Dopamine

25
Q

Increased function of the substance nigra would most likely result in muscle tremors.

a. true
b. false

why?

A

b. False

Increased function of SN you will have increased motor movement

26
Q

The region of the brain that acts similarly to a computer server to ensure that action potentials reach the correct destination in the brain is the:

a. Medulla oblongata
b. Cerebellum
c. Cerebrum
d. Thalamus
e. Red Nucleus

A

d. Thalamus

27
Q

The region of the brain responsible for subconscious control of skeletal muscle in response to emotions such as rage or pleasure is the

a. Frontal Cortex
b. Hypothalamus
c. Pineal gland

A

b. Hypothalamus

28
Q

List and describe two key physical characteristics of Parkinsons Disease that results from neuronal death in the substantia nigra

A

Tremor: Uncontrollable muscle spasms
Rigidity: Rigid muscles often resulting in pain and extreme discomfort

29
Q

The term “nucleus” in the CNS refers to:

A

Neuronal cell bodies