Q3_W3_Nervous-System-Autosaved.pdfudgeed

onlyceann 7 views 33 slides Feb 28, 2025
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About This Presentation

Nevous System ‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎...


Slide Content

Nervous
System

4. Elements of negative feedback mechanism:
a. Stimulusis the thing that produces a change in the
variable to be regulated.
b. Receptorsare organs responsible for receiving
external stimuli and transmitting them to the brain.
c. Control centeris the brain which determines the
appropriate response.
d.Effectorsare organs that carry out the brain’s
instructions in response to external stimuli.

Supply the
missing letters
to complete the
statement
1. Identifythe
partsof the
n_er_ _ us
system.
nervous

Supply the
missing letters
to complete the
statement
2. Understand
the f_n_t_o_s
Of the nervous
system.
functions

1 Point 2 Points 3 Points
Hormone secreted
during giving birth
Example of a receptorWhere do the response
of the brain go?
Hormone stimulating
ovary to secrete
estrogen
It is the control centerWhat is negative
feedback?
Hormone that
maintains the uterine
linings
Feeling hungry is an
example of what?
How does positive
feedback affect the
hormone level in the
body?

THE NERVOUS SYSTEM
THE MAJOR CONTROL SYSTEM
OF HOMEOSTASIS AND THE
“MAIN PROCESSING CENTER”
IT PROVIDES MONITORING, RESPONSE,
AND REGULATION OF ALL SYSTEMS IN
THE HUMAN BODY AND OTHER
ORGANISM.
THE ORGAN SYSTEM THE CONTROLS
AND COORDINATES FUNCTION
THROUGHOUT THE BODY.

CENTRAL NERVOUS
SYSTEM(CNS)
PERIPHERAL
NERVOUS SYSTEM
(PNS)

Cranial Nerves
Spinal Nerves

CENTRAL NERVOUS
SYSTEM(CNS)
PERIPHERAL
NERVOUS SYSTEM
(PNS)

CENTRAL NERVOUS
SYSTEM(CNS)
•MADE UP OF THE BRAIN AND SPINAL CORD
•ACTS AS BODY’S CONTROL CENTER,
COORDINATES BODY’S ACTIVITIES
•IT RECEIVES THE IMPULSES, ANALYZE AND
ORGANIZES THE INFORMATION, AND
MAKES APPROPRIATE ACTIONS

CEREBRUM
CEREBELLUM
BRAIN STEM

●CONTROLS CONSCIOUS
ACTIVITIES, INTELLIGENCE,
MEMORY AND LANGUAGE
CEREBRUM
•largest part
(sensation,
reasoning, emotions,
voluntary actions,
planningand
learning)

FOUR LOBES OF CEREBRUM

●MUSCLE COORDINATION IS
DEVELOPED HERE AS WELL AS THE
MEMORY OF PHYSICAL SKILLS
CEREBELLUM
•it is the reflex center that
controls the posture,
balance and coordination
of skeletal system.

●CONTROLS
INVOLUNTARY
ACTIVITIES
BRAIN STEM
oRespiratory control
center
oCardiac control center
oVasomotor center
Medulla
Pons

●CONTROLS
INVOLUNTARY
ACTIVITIES
THALAMUS
oProvides awareness of
sensations like pain,
pressure, and touch. It
serves as a relay station
for motor impulses

●ITS PRIMARY FUNCTION IS TO
MAINTAIN HOMEOSTASIS
●IT RECOGNIZED ANGER
HUNGER, THIRST, AND
FATIGUE.
HYPOTHALAMUS
oIt controls the secretion of
hormones by the pituitary
gland.
oIt serves as the connection
between the nervous system
and endocrine system

CENTRAL NERVOUS
SYSTEM(CNS)
PERIPHERAL
NERVOUS SYSTEM
(PNS)

PERIPHERAL NERVOUS
SYSTEM(PNS)
•THE CNS AND PNS WORK
TOGETHER TO MAKE
RAPID CHANGES IN YOUR
BODY IN RESPONSE TO
STIMULI

PERIPHERAL
NERVOUS SYSTEM
(PNS)
2 SUBDIVISIONS
SOMATIC NERVOUS
SYSTEM
AUTONOMIC
NERVOUS SYSTEM
VOLUNTARY INVOLUNTARY

AUTONOMIC
NERVOUS SYSTEM
INVOLUNTARY
SYMPATHETIC
NERVOUS SYSTEM
PARASYMPATHETIC
NERVOUS SYSTEM
FIGHT OR FLIGHT
REST OR DIGEST
TRIGGERED BY STRESS OR DANGER
PROMOTES RELAXATION

SOMATICNERVOUS
SYSTEM VOLUNTARY
SPINAL NERVES
CRANIAL NERVES
CARRIES MOTOR
AND SENSORY
SIGNALS
CARRY
INFORMATION
INSIDE AND
OUTSIDE OF THE
BODY
TRIGGERED BY STRESS OR DANGER
PROMOTES RELAXATION

THE NEURON
SYNAPSE are small gaps
between two neurons

4. Elements of negative feedback mechanism:
a. Stimulusis the thing that produces a change in the
variable to be regulated.
b. Receptorsare organs responsible for receiving
external stimuli and transmitting them to the brain.
c. Control centeris the brain which determines the
appropriate response.
d.Effectorsare organs that carry out the brain’s
instructions in response to external stimuli.

3
2
4
1
5
6
7

BRAIN SPINAL CORD
SYMPATHETIC
PARASYMPATHETIC
Carry motors and
sensory signals
Carry information in
and out of the brain
SPINAL NERVES
CRANIALNERVES