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Nervous System & muscle > Exam 1 > Flashcards

Exam 1 Flashcards

1
Q

Nervous System Functions

A

Sensory-Senses
intergrative- analyze
Motor-responds

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2
Q

Divisions of the Nervous System

A

Central and Peripheral

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3
Q

Central NS Composed of

A

Brain and Spinal Cord

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4
Q

Divisions of the Peripheral NS

A

Sensory (afferent)

Motor (efferent)

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5
Q

Motor

A

Carries impulses AWAY from the brain

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6
Q

Sensory

A

Carries impulses TOWARDS the brain

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7
Q

Motor divisions

A

Autonomic NS

Somatic NS

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8
Q

Autonomic Nervous System

A

Sympathetic

Parasympathetic

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9
Q

Autotonomic NS Controls

A

HR, BP, Temp, digestion, airflow through resp passage, elimination, pupil dialation

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10
Q

Two respiratory centers in Pons

A

Apneustic and pneumotaxic center

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11
Q

Neuron

A

Receives and transmits messages through neural impulses

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12
Q

Synapse

A

Junction between neurons

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13
Q

Dendrites

A

Neurons receivers

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14
Q

Cell body

A

Holds the neuron’s nucleus

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15
Q

Axon

A

Neurons Conducting Fiber

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16
Q

Axon terminal

A

Neuron transmitters

17
Q

Myelin Sheath

A

Insulating fatty layer that speeds transmission in the neurons

18
Q

Schwann Cells

A

Form the myelin sheath

19
Q

Nodes of Ranvier

A

Spaces that are not covered by myelin sheath along the axis

20
Q

Vagus Nerve

A

Longest cranial nerve

21
Q

Vagus Nerve Innervate

A

Lungs, stomach, parasympathetic innervation of the heart

22
Q

Sympathetic Neurotransmitter; Pre-ganglionic

A

acetylcholine (ACh)

23
Q

Sympathetic neurotransmitter; post-ganglionic

A

Norepinephrine (NE)

24
Q

Parasympathetic neurotransmitter; pre- and post-ganglionic

A

acetylcholine (ACh)

25
Q

Adrenergic Receptors accept

A

Norepinephrine (NE)

26
Q

Cholinergic Receptors accept

A

Acetylcholine (ACh)

27
Q

Nicotinic Receptor

A

Cholinergic Receptors on the pre-and post-ganglionic nerve

28
Q

Muscarinic Receptor

A

Cholinergic receptors at the effector site of the parasympathetic nervous system

29
Q

Three adrenergic receptors and effect when stimulated

A

Alpha- vasoconstriction (⬆️BP)
Beta1-⬆️HR and Force
Beta2-bronchodilation

30
Q

Stimulating muscarinic receptor

A

⬇️HR

bronchial smooth musclr constricts

31
Q

Acetylcholinestrase (enzyme)

A

Inactivates acetylcholine

32
Q

COMT or MAO (enzyme)

A

Inactivates norepinephrine

33
Q

Major inspiration muscle

A

Diaphragm and external intercostal muscles

34
Q

Accessory muscles of inspiration and location

A

Pectoralis- Major/minor (chest)
Sternoclleidomastoid (neck)
Scalenes (neck)

35
Q

Accessory Muscles of expiration and location

A 
Abdominal (abdomen)
Inter intercostal (ribs)
36
Q

Relation between volume and pressure

A

when diaphragn expands volume ⬆️ and presure ⬇️_inspiration

expiration volume ⬇️ and pressure ⬆️

Nervous System & muscle (1 decks)

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