1|Pag e
DAANCE MODULE 1 EXAM || ALL QUESTIONS AND
CORRECT ANSWERS LATEST UPDATE 2024-2025 WITH
VERIFIED SOLUTIONS|| ASSURED PASS
Nervous system
- Body's control center
- Works with endocrine system
- manages body functions through CNS, PNS, ANS collaboration
Nerve's resting state
At rest, positive charge outside compared to the inside
Depolarization
- Na+ flows IN through channels
- Outside becomes negatively charged
Wave of depolarization
shifting charge as depolarization occurs, creating a ripple-like effect
repolarization
,2|Pag e
- K+ ions move OUT through channels
- exterior positive charge is restored
Nervous system and OMS
- local anesthetics hinder Na+ passage, halting depolarization (signals are blocked)
- drugs modify neurotransmitters or ion movement, influencing nerve conduction
(messages are tweaked)
CNS
overall control center of the body. consists of brain and spinal cord
cerebral cortex
Functions:
1) thought
2) memory
,3|Pag e
3) learned
4) consciousness
5) sensations
6) muscle movement initiation
(mnemonic: the mouse learned consciously sensing muscles)
core of brain
Inner - core or central part of the brain.
Relay - relay station function for sensory inputs and autonomic functions.
Hub - the processing of impulses to and from the cerebral cortex.
PNS
, 4|Pag e
Composed of:
1. cranial nerves
2. spinal nerves
cranial nerves
- 12 pairs of nerves at base of the brain
- supply sensation
- responsible for various sensory/motor functions
trigeminal nerve (and divisions)
- 5th cranial nerve supplying sensation to the teeth and jaws
- three divisions: ophthalmic, maxillary, and mandibular
DAANCE MODULE 1 EXAM || ALL QUESTIONS AND
CORRECT ANSWERS LATEST UPDATE 2024-2025 WITH
VERIFIED SOLUTIONS|| ASSURED PASS
Nervous system
- Body's control center
- Works with endocrine system
- manages body functions through CNS, PNS, ANS collaboration
Nerve's resting state
At rest, positive charge outside compared to the inside
Depolarization
- Na+ flows IN through channels
- Outside becomes negatively charged
Wave of depolarization
shifting charge as depolarization occurs, creating a ripple-like effect
repolarization
,2|Pag e
- K+ ions move OUT through channels
- exterior positive charge is restored
Nervous system and OMS
- local anesthetics hinder Na+ passage, halting depolarization (signals are blocked)
- drugs modify neurotransmitters or ion movement, influencing nerve conduction
(messages are tweaked)
CNS
overall control center of the body. consists of brain and spinal cord
cerebral cortex
Functions:
1) thought
2) memory
,3|Pag e
3) learned
4) consciousness
5) sensations
6) muscle movement initiation
(mnemonic: the mouse learned consciously sensing muscles)
core of brain
Inner - core or central part of the brain.
Relay - relay station function for sensory inputs and autonomic functions.
Hub - the processing of impulses to and from the cerebral cortex.
PNS
, 4|Pag e
Composed of:
1. cranial nerves
2. spinal nerves
cranial nerves
- 12 pairs of nerves at base of the brain
- supply sensation
- responsible for various sensory/motor functions
trigeminal nerve (and divisions)
- 5th cranial nerve supplying sensation to the teeth and jaws
- three divisions: ophthalmic, maxillary, and mandibular
