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Ex Physiology > Nervous and Endocrine Systems > Flashcards

Nervous and Endocrine Systems Flashcards

1
Q

Define the nervous system?

A

The vast network of cells specialised in carrying information to and from all parts of the body in order to bring about activity

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2
Q

What is the CNS?

A

Central Nervous System (brain and spinal chord)

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3
Q

What is the PNS?

A

Peripheral Nervous System
Every other nerve tissue within the body
Sensory information and motor neurons

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4
Q

What is the PNS split into?

A

Motor and sensory

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5
Q

What is the motor system split into?

A

Autonomic and Somatic

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6
Q

What is the somatic system?

A

Voluntary
Responds to external stimuli
Skeletal muscle

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7
Q

What is the autonomic system?

A

Involuntaty

Responds to internal stimuli

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8
Q

What muscle does the autonomic system use?

A

Skeletal and cardiac

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9
Q

What muscle does the somatic system use?

A

Skeletal only

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10
Q

What does the autonomic system split down into?

A

Sympathetic and parasympathetic

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11
Q

What is the sympathetic nervous system?

A

Responds to stress
Fight or flight
Increases the heart rate
Accelerator

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12
Q

What is the parasympathetic nervous system?

A

Initiates the rest and digest
Decreases heart rate
Decellarator

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13
Q

Describe the pathway of nerves?

A

Afferent –> interneurons –> efferent

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14
Q

Describe afferent nerves?

A

Sensory system

Sends info to the CNS

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15
Q

Describe the interneurons?

A

In the CNS
They make the decision
Distributes information from the sensory system/motor neurones and relays this to the neurons within the CNS

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16
Q

Describe the efferent nerves

A

Motor system

Communicates information from the CNS to the organs/muscles in response to stimulus

17
Q

What is the reflex gate?

A

The pain gate

Follows the nerve pattern to react to the external stimuli

18
Q

What is the endocrine system?

A

Activated by information received from the nervous system.
Results in activation of an endocrine gland
Causes hormone secretion
Brings about a change in the body - maintains homeostasis
Slower reaction time than the nervous system

19
Q

Name the 3 major glands?

A

Thyroid gland, pituatary, pancreas

20
Q

Describe the location of the pituarty gland?

A

In the base of the brain

21
Q

Describe the function of the pituitary gland?

A

Receives constant messages from the brain
Produces tropic hormones
Stimulates other endocrine glands to release hormones
releases growth hormones

22
Q

Describe the location of the thyroid?

A

In the neck

23
Q

Function of the thyroid gland?

A

Controls metabolism
Makes protein
Hormone sensitivity
Homeostasis

24
Q

What hormones do the thyroid produce?

A

Thyroxine and calcitonin

25
Q

Where is the pancreas?

A

Alongside the stomach

26
Q

What is the function of the pancreas?

A

Releases insulin and glucagon
Maintains blood glucose lesson
Hormones controlling blood glucose levels

Ex Physiology (25 decks)

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