Exam 1

Question 1

Nervous System Functions

Answer 1

Sensory-Senses
intergrative- analyze
Motor-responds

Question 2

Divisions of the Nervous System

Answer 2

Central and Peripheral

Question 3

Central NS Composed of

Answer 3

Brain and Spinal Cord

Question 4

Divisions of the Peripheral NS

Answer 4

Sensory (afferent)

Motor (efferent)

Question 5

Motor

Answer 5

Carries impulses AWAY from the brain

Question 6

Sensory

Answer 6

Carries impulses TOWARDS the brain

Question 7

Motor divisions

Answer 7

Autonomic NS

Somatic NS

Question 8

Autonomic Nervous System

Answer 8

Sympathetic

Parasympathetic

Question 9

Autotonomic NS Controls

Answer 9

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

Question 10

Two respiratory centers in Pons

Answer 10

Apneustic and pneumotaxic center

Question 11

Neuron

Answer 11

Receives and transmits messages through neural impulses

Question 12

Synapse

Answer 12

Junction between neurons

Question 13

Dendrites

Answer 13

Neurons receivers

Question 14

Cell body

Answer 14

Holds the neuron’s nucleus

Question 15

Axon

Answer 15

Neurons Conducting Fiber

Question 16

Axon terminal

Answer 16

Neuron transmitters

Question 17

Myelin Sheath

Answer 17

Insulating fatty layer that speeds transmission in the neurons

Question 18

Schwann Cells

Answer 18

Form the myelin sheath

Question 19

Nodes of Ranvier

Answer 19

Spaces that are not covered by myelin sheath along the axis

Question 20

Vagus Nerve

Answer 20

Longest cranial nerve

Question 21

Vagus Nerve Innervate

Answer 21

Lungs, stomach, parasympathetic innervation of the heart

Question 22

Sympathetic Neurotransmitter; Pre-ganglionic

Answer 22

acetylcholine (ACh)

Question 23

Sympathetic neurotransmitter; post-ganglionic

Answer 23

Norepinephrine (NE)

Question 24

Parasympathetic neurotransmitter; pre- and post-ganglionic

Answer 24

acetylcholine (ACh)

Question 25

Adrenergic Receptors accept

Answer 25

Norepinephrine (NE)

Question 26

Cholinergic Receptors accept

Answer 26

Acetylcholine (ACh)

Question 27

Nicotinic Receptor

Answer 27

Cholinergic Receptors on the pre-and post-ganglionic nerve

Question 28

Muscarinic Receptor

Answer 28

Cholinergic receptors at the effector site of the parasympathetic nervous system

Question 29

Three adrenergic receptors and effect when stimulated

Answer 29

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

Question 30

Stimulating muscarinic receptor

Answer 30

⬇️HR | bronchial smooth musclr constricts

Question 31

Acetylcholinestrase (enzyme)

Answer 31

Inactivates acetylcholine

Question 32

COMT or MAO (enzyme)

Answer 32

Inactivates norepinephrine

Question 33

Major inspiration muscle

Answer 33

Diaphragm and external intercostal muscles

Question 34

Accessory muscles of inspiration and location

Answer 34

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

Question 35

Accessory Muscles of expiration and location

Answer 35

``` Abdominal (abdomen) Inter intercostal (ribs) ```

Question 36

Relation between volume and pressure

Answer 36

when diaphragn expands volume ⬆️ and presure ⬇️_inspiration | expiration volume ⬇️ and pressure ⬆️