Brain Quiz Flashcards

1
Q

Where is the cerebellum and what is its function?

A

The hindbrain’s “little brain” at the rear of the brainstem; functions include processing sensory input, coordinating movement output and balance, and enabling nonverbal learning and memory.

pg. 55 & G-2

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2
Q

Where is the hypothalamus and what is its function?

A

A limbic system neural structure lying below (hypo) the thalamus; it directs several maintenance activities (eating, drinking, body temperature), helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward.

center mass of brain below the egg shaped thalamus

Pg. 57 & G-5

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3
Q

Where is the pituitary gland and what is its function?

A

The endocrine system’s most influential gland. Under the influence of the hypothalamus, the pituitary regulates growth and controls other endocrine glands.

bean/pea sized

Pg. 49 & G-8

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4
Q

Where is the amygdala and what is its function?

A

Two lima-bean-sized neural clusters in the limbic system; linked to emotion.

Behind the hypothalamus

Pg. 56 & G-1

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5
Q

Where is the hippocampus and what is its function?

A

A neural center located in the limbic system that helps process explicit (conscious) memories—of facts and events—for storage.

Wraps around the ear

Pg. 58 & G-5

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6
Q

Where is the thalamus and what is its function?

A

The forebrain’s sensory control center, located on top of the brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla.

central brain stem top

Pg. 55 & G-11

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7
Q

Where is the motor cortex and what is its function?

A

A cerebral cortex area at the rear of the frontal lobes that controls voluntary movements.

front of brain

Pg. 60 & G-7

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8
Q

Where is the somatosensory cortex and what is its function?

A

A cerebral cortex area at the front of the parietal lobes that registers and processes body touch and movement sensations.

middle top of brain

Pg. 61 & G-10

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9
Q

Where is the reticular formation and what is its function?

A

A nerve network that travels through the brainstem into the thalamus; filters information and plays an important role in controlling arousal.

Pg. 55 & G-9

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10
Q

Where is the medulla and what is its function?

A

The hindbrain structure that is the brainstem’s base; controls heartbeat and breathing.

base of brain stem

Pg. 55 & G-6

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11
Q

Where is the frontal lobes and what is its function?

A

The portion of the cerebral cortex lying just behind the forehead; involved in speaking and muscle movements and in making plans and judgments.

Pg. 59 & G-4

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12
Q

Where is the parietal lobes and what is its function?

A

The portion of the cerebral cortex lying at the top of the head and toward the rear; receives sensory input for touch and body position.

Pg. 59 & G-7

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13
Q

Where is the occipital lobes and what is its function?

A

The portion of the cerebral cortex lying at the back of the head; includes areas that receive information from the visual fields.

Pg. 59 & G-7

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14
Q

Where is the temporal lobes and what is its function?

A

The portion of the cerebral cortex lying roughly above the ears; includes the auditory areas, each receiving information primarily from the opposite ear.

Pg. 60 & G-11

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15
Q

What are the parts of a neuron?

A

Dendrite: a neuron’s fingers that receive neuro transmitters and integrate messages, conducting impulses toward the cell body.
Myelin Sheath: a protective fatty tissue layer encasing the axons of some neurons.
Cell Body: the part of a neuron that contains the nucleus; the cell’s life-support center.
Terminal: a specialized region of a neuron at the end of the axon, whose function is to release neurotransmitter when stimulated by an electrical signal.
Axon: the segmented neuron extension that passes messages through its branches to other neurons or to muscles or glands.

Pg. 40

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16
Q

Where is the occipital lobes and what is its function?

A

The portion of the cerebral cortex lying at the back of the head; includes areas that receive information from the visual fields.

Pg. 59 & G-7

17
Q

Where is the limbic system and what is its function?

A

Neural system located mostly in the forebrain—below the cerebral hemispheres—that includes the amygdala, hypothalamus, and hippocampus; associated with emotions and drives.

Pg. 56 & G-6

18
Q

What is the Parasympathetic Nervous System and what are it’s effects?

A

The division of the autonomic nervous system that calms the body, conserving its energy.
Effects: pupils contract, heartbeat slows, stimulates digestion in stomach, gallbladder release bile, bladder contracts, blood flow in genitals

Pg. 47 & G-7

19
Q

What is the Sympathetic Nervous System and what are it’s effects?

A

The division of the autonomic nervous system that arouses the body, mobilizing its energy.
Effects: Pupils dilate, heartrate accelerates, inhibits digestion in the stomach, liver releases glucose, adrenal glands secrete epinephrine and norepinephrine, bladder relaxes, stimulates genital ejaculation in males

Pg. 47 & G-10

20
Q

What is the Peripheral Nervous System (PNS)?

A

The sensory and motor neurons that connect the central nervous system (CNS) to the rest of the body.
Encompasses:
Autonomic nervous system (ANS): Controls the glands and the muscles of the internal organs (such as the heart). Its sympathetic division arouses (sympathetic nervous system); its parasympathetic division calms (parasympathetic nervous system)

Pg. 45 & G-8

21
Q

What is the Central Nervous System (CNS)?

A

The brain and spinal cord.
Encompasses:
Somatic Nervous System (SNS): controls the body’s skeletal muscles. (Also called the skeletal nervous system.)
Sensory Input Neurons: neurons that carry incoming information from the body’s tissues and sensory receptors to the brain and spinal cord.
Motor Output Neurons: neurons that carry outgoing information from the brain and spinal cord to the muscles and glands.

Pg. 45 & G-2

22
Q

Where is the corpus callosum and what is its function?

A

The large band of neural fibers connecting the two brain hemispheres and carrying messages between them.

Pg. 66 & G-3