Transcript Central Nervous System - Hicksville Public Schools / Homepage

GET BRAIN MODEL
OBJ: Given notes, video, activity sheet SWBAT explain
the structures and functions of the Central and
Peripheral Nervous Systems with 70% accuracy.
BRING IN TEXTBOOK
DN: HW check- How The Nervous System Works
Booklet; Video: Divisions of the Nervous System
ACT: Introduction to Central Nervous System and
Peripheral Nervous System (Notes)
Text, read p. 182-189; Complete Divisions of the
Nervous System Booklet
HW: Complete Divisions of the Nervous System Booklet;
INERH Exam, March 23.
NERVOUS SYSTEM
CENTRAL
PERIPHERAL
brain + spinal cord
(grey)
everything else (gold)
SOMATIC
AUTONOMIC
concious, voluntary
unconcious, involuntary
Reflex Arc
Central Nervous System Notes
Central Nervous System (CNS):
“control center” of the body; consists of
brain and spinal cord.
Brain: controls most functions of the body
Spinal Cord: links brain to Peripheral
Nervous System
Actual Human Central Nervous System
Central Nervous System Notes
Brain: consists of three (3) parts:
Cerebrum: processes sensory information,
mental processes (thought: learning,
remembering, judgement; conciousness);
largest part of brain. Left Half: Math,
Science (analytical) Right Half: Music, Art,
(creativity)
Cerebellum: muscle coordination & balance
Brain Stem: primitive/basic involuntary
activities (breathing, heartbeat, blinking
eyes)
Central Nervous System Notes
Peripheral Nervous System Notes
Peripheral Nervous System (PNS): consists
of all nerves outside of the Central Nervous
System. Subdivided into the Somatic &
Autonomic Nervous System.
Somatic Nervous System: controls
voluntary actions (ex: taking notes, writing)
Autonomic Nervous System: controls
involuntary actions; reflex actions
(ex: blinking, breathing)
Peripheral Nervous System Notes
Reflex Action: autonomic response that occurs
very rapidly and without concious control; helps to
protect the body; muscle and spinal cord
involvement but not the brain (see transparancy).
Nervous System Damage: Concussions and
Spinal Cord injuries.
Concussion: bruise of the brain when brain
collides against skull.
Spinal Cord injury: cut or crushed, resulting in
paralysis (loss of movement) or death.
Reflex Action