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DRE NOV/DEC 2019 > Physiology > Flashcards

Physiology Flashcards

1
Q

What is a neurotransmitter

A

A chemical that passes from the axon of one nerve cell to the dendrite of the next cell and carry messages across the gap between the two nerve cells.

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2
Q

What is a hormone

A

Chemicals produced by the body’s endocrine system that are carried through the blood stream to the target organ. They exert great influence on the growth and development of the individual and they aid in the regulation of numerous body processes.

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3
Q

What is a dendrite

A

Part of the neuron that receives neurotransmitters

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4
Q

What is an axon

A

Part of a neuron that sends out a neurotransmitter

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5
Q

What is a synapse

A

The gap between two neurons

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6
Q

2 types of nerves that make up the Autonomic Nervous Sub- System

A

Sympathetic Nerves and Parasympathetic Nerves

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7
Q

Cocaine: sympathomimetic or parasympathomimetic
Heroine: sympathomimetic or parasympathomimetic

A

Cocaine: sympathomimetic
Heroin: parasympathomimetic

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8
Q

Drug Influence Evaluation Clinical Indicators

A

Pulse Rate
Blood Pressure
Temperature

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9
Q

Describe arteries

A

arteries constrict to aid distribution of blood.

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10
Q

What are the 2 separate circulation systems?

A

Systemic system involves the whole body and is driven by the left side of the heart
Pulmonary system deals with the passage of blood through the lungs and is driven by the right side of the heart

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11
Q

Define Pulse

A

The rhythmic dilation and relaxation of an artery that results from the beating of the heart

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12
Q

Define Pulse Rate

A

The number of pulsations in an artery per minute

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13
Q

Define Artery

A

A strong, elastic blood vessel that carries blood from the heart to the body tissues

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14
Q

Define Vein

A

A blood vessel that carries blood back to the heart from the body tissues

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15
Q

3 types of pulses

A

radial, brachial and carotid

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16
Q

Pulse Rate terms and definitions

A

Tachycardia – abnormally rapid heart rate
Bradycardia – unusually slow heart rate
Arrhythmia – abnormal heart rhythm

17
Q

Blood Pressure Measurement

A

Millimeters of Mercury = mmHg

18
Q

What is blood pressure?

A

Blood Pressure is the force the circulating blood exerts on the walls of the arteries

19
Q

What is systolic pressure?

A

Blood Pressure reaches its maximum as the heart contracts and sends the blood surging through the arteries

20
Q

What is diastolic pressure?

A

Blood Pressure reaches its minimum when the heart is fully expanded

21
Q

What is a Sphygmomanometer?

A

The device used for measuring blood pressure is called a sphygmomanometer.

DRE NOV/DEC 2019 (18 decks)

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