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Biology > UNIT TWO: The Brain, Reflex Actions and Hormones > Flashcards

UNIT TWO: The Brain, Reflex Actions and Hormones Flashcards

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1
Q

What is the function of the Medulla?

A

Controls breathing and Heart rate.

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2
Q

What is the function of the Cerebellum?

A

Controls co-ordination

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3
Q

What is the function of the Cerebrum?

A

Enables conscious thought and memory.

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4
Q

What does the CNS stand for?

A

Central Nervous System

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5
Q

What is the CNS made of?

A

Brain and the spinal cord

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6
Q

What is the perpheral nervous system?

A

Nerves that come from the spine

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7
Q

What is the order for Gathering and Responding to Information?

A

Stimuli
Senses
Sensory Neuron
CNS
Motor Neuron
Effector
Response

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8
Q

Messages travel through the nerve cell in the form of..?

A

Electrical messages

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9
Q

What happens between the nerve cells?

A

There are small gaps between nerve cells where electricity cannot pass through

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10
Q

What is the chemical message called that is sent inbetween nerve cells?

A

Synapses

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11
Q

What is the Stimuli?

A

Something harmful to the body

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12
Q

What is the effector?

A

The muscle or gland receiving the message.

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13
Q

Examples of reflexes?

A
  • Touching something hot then moving away
  • Blinking due to dust
  • Coughing due to particles blocking the airway
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14
Q

What is the order of a reflex arc?

A

Stimuli
Sense receptor
Sensory neuron
Inter neuron
Motor neuron
Effector
Response

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15
Q

Hormones are made of?

A

Proteins

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16
Q

Hormones are made in?

A

Endocrine Glands

17
Q

What is the job of the reflex arc?

A

To protect the body from harm by releasing a rapid response.

18
Q

What order are the neurons in a reflex arc?

A

Sensory
Inter
Motor

19
Q

Hormones are what kind of shape?

A

Specific

20
Q

Hormones match what?

A

The receptor

21
Q

What happens when your blood glucose increases?

A

Pancreas detects change
Pancreas makes insulin
Insulin travels through the blood to the liver
Glucose turns to glycogen
Glycogen makes the blood glucose back to normal

22
Q

What happens when your blood glucose decreases?

A

Pancreas detects change
Pancreas makes glucagon
Glucagon travels to the liver through the blood
Glucagon signals the liver to break down glycogen to glucose
This increase the amount of glucose in the blood so its back to normal

23
Q

During emergency what is released?

A

Adrenalin

24
Q

What does Adrenalin promote?

A

Breakdown of glycogen to glucose

Biology (20 decks)

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