U2 Key Area 2- Control And Communication Flashcards

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1
Q

What is the nervous system made up of (2)

A

CNS and nerves

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2
Q

What is the CNS made up of (2)

A

Brain and Spinal cord

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3
Q

What are the 3 parts of the brain

A
  • cerebrum
    -cerebellum
  • medulla
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4
Q

What does the cerebrum look like in the brain

A

The biggest part of the brain

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5
Q

What does the medulla look like in the brain

A

The small long part of the brain next to spinal cord

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6
Q

What does the cerebellum look like in the brain

A

It looks like the cerebrum but smaller

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7
Q

What is the function of the cerebrum

A

Controls conscious thoughts, memory and personality

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8
Q

What is the function of the cerebellum

A

Controls muscle coordination and balance

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9
Q

What is the function of the medulla

A

Controls breathing and heart rate

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10
Q

What is the 1st step for the CNS to control the body

A

Receptors in the senses detect a stimulus

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11
Q

What is the 2nd step for the CNS to control the body

A

Electrical impulses carry the message along neurons

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12
Q

What is the 3rd step for the CNS to control the body

A

Sensory neuron takes message to the CNS

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13
Q

What is the 4th step for the CNS to control the body

A

Inter neuron operates within the CNS where the message is processed and a response is generated

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14
Q

What is the 5th step for the CNS to control the body

A

Motor neuron travels away form CNS and takes the response to an effector

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15
Q

What is the 6th step for the CNS to control the body

A

Responses may be a rapid action form a muscle to a slow response from a gland

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16
Q

What is a synapse

A

A small gap between two neurons

17
Q

How do electrical impulses pass between neurons

A

In order for the electrical impulses to pass between neurons, chemicals (neurotransmitters) must be released which cross the synapse and trigger a response at the next neuron.

18
Q

Hormones

A

Chemical messengers produces by endocrine glands

19
Q

Where are hormones carried

A

Carried all over the body in the blood to specific target cells

20
Q

What do hormones bind with

A

Hormones bind to a complementary receptor cell surface and causes changes to occur inside the cell.

21
Q

How does an increase in blood return to a normal blood sugar level (6)

A
  • Increase in blood sugar
  • Change detected by the pancreas
  • Insulin release increases
  • Glucose taken in by cells
  • Glycogen stores increase
  • Normal blood sugar level
22
Q

How does a decrease in blood sugar return to a normal blood sugar level (5)

A

-Decrease in blood sugar
- Change detected by the pancreas
- glucagon release increases
- glycagon broken down into glucose
- Normal blood sugar level

23
Q

What is type 1 diabetes the result of

A

Person not producing enough insulin

24
Q

How does a person get type 2 diabetes

A

Type 2 diabetes is a result of the unsmiling having no effect in the liver