GUYTON
PHYSIOLOGY
14TH EDITION
CHAPTERS 48
AND 49 2024-2025
Q&A LATEST
EDITION
,PHYSIOLOGY: SOMATIC SENSES I & II – DOC RUBIATO W/ Additional Notes From Guyton (Chapter 48-49) 1
(1) Mechanoreceptive Somatic Senses (Sensitive
Bending And Stretching, Includes Both Tactile A
, Position Sensations That Are Stimulated By 1. Free Nerve Endings (Detect Touch And
Mechanical Displacement Of Some Tissue Of Pressure;Found On The Skin)
The Body)
2. Meissner’s Corpuscle (Touch Receptor With
(2) Thermoreceptive Senses (Detect Heat And Cold,
Great Sensitivity; Found In The Ridges Of The
Response Best To Change In Temperature) Non-Hairy Parts Of The Skin, Abundant In The
(3) Pain Sense (Activated By Factors That Fingertips, Lips, And Other Areas Of The Skin
DamagedThe Tissue) Where A Person’s Ability To Discern Spatial
(4) Other Classifications: Locations Of Touch Sensations Is Highly
Exteroreceptive Sensations (From The Developed – Rapidly Adapting. )
SurfaceOf The Body)
Proprioceptive Sensations (Relating To 3. Merkel’s Disc (―Expanded Tip Tactile
The Physical State Of The Body, Including Receptors‖. Found In The Finger Tips And Hairy
Position Sensations, Tendon And Muscle Parts Of The Skin. They Transmit An Initially
Sensations, Pressure Sensations From Strong But Partially Adapting Signal And Then
The Bottom Of The Feet, And Even The A Continuing Weaker Signal That Adapts Only
Sensation Of Equilibrium, Which Is Often Slowly. They Are Responsible For Giving Out
Considered A ―Special‖ Sensation Rather Steady-State Signals That Allow One To Determine
Than A Somatic Sensation.) Continuous Touch Of Objects Against The Skin.
Visceral Sensations (From The Viscera Of Often Grouped Together In A Receptor Organ
The Body; Sensations From The Internal Called Touch Domes. They Are Innervated By
Organs) A Single Large Myelinated Nerve Fiber (Type
Deep Sensations (From Deep Tissues, Such Aβ) And Play Extremely Important Roles In
As From Fasciae, Muscles, And Bone) Localizing Touch Sensations To Specific
Surface Areas Of The Body And In Determining
The Texture Of What Is Felt.)
1. Touch: Generally Results From Stimulation Of
4. Hair End-Organ (Right At The Base Of The
Tactile Receptors In The Skin Or In Tissues
Hair. Feels The Movement Of The Hair Every
ImmediatelyBeneath The Skin
Time It Moves. Adapts Readily And Detects
2. Pressure: Generally Results From Deformation
Mainly The Following: (1) Movement Of Objects
OfDeeper Tissues
On The Surface Of The Body; Or (2) Initial
3. Vibration: Results From Rapidly Repetitive
Contact With The Body.)
SensorySignals
Classified As Separate Sensations, But 5. Ruffini’s Endings (―Multibranched Encapsulated
They Are All Detected By The Same Endings‖. Found In The Deeper Internal
Types Of Receptors. Organs, Slowly Adapting Receptors Respond
However, Some Of The Same Types Of Best In Low Frequencies And Important For
Receptors As Those For Touch And Pressure Signaling Continuous States Of Deformation Of
Are Used. The Tissues, Such As Heavy Prolonged Touch
And Pressure Signals. They Are Also Found In
Joint Capsules And Help To Signal The Degree
Of Joint Rotation.)
6. Pacinian Corpuscle (Ball-Like Receptors
Important For Detecting Tissue Reception,
Largest Receptor Located In The Subcutaneous
Tissue. Found Beneath The Skin And Deep In
The Fascial Tissues Of The Body. They Are
Stimulated Only By Rapid Local Compression
Of The Tissues Because They Adapt In A Few
Hundredths Of A Second.)
, Philippians 2:4 “Instead Of Each Person Watching Out For Their Own Good, Watch Out For What Is Better For Others.”
Dmsa Page 1
Downloaded By Osman Nazir ()
PHYSIOLOGY
14TH EDITION
CHAPTERS 48
AND 49 2024-2025
Q&A LATEST
EDITION
,PHYSIOLOGY: SOMATIC SENSES I & II – DOC RUBIATO W/ Additional Notes From Guyton (Chapter 48-49) 1
(1) Mechanoreceptive Somatic Senses (Sensitive
Bending And Stretching, Includes Both Tactile A
, Position Sensations That Are Stimulated By 1. Free Nerve Endings (Detect Touch And
Mechanical Displacement Of Some Tissue Of Pressure;Found On The Skin)
The Body)
2. Meissner’s Corpuscle (Touch Receptor With
(2) Thermoreceptive Senses (Detect Heat And Cold,
Great Sensitivity; Found In The Ridges Of The
Response Best To Change In Temperature) Non-Hairy Parts Of The Skin, Abundant In The
(3) Pain Sense (Activated By Factors That Fingertips, Lips, And Other Areas Of The Skin
DamagedThe Tissue) Where A Person’s Ability To Discern Spatial
(4) Other Classifications: Locations Of Touch Sensations Is Highly
Exteroreceptive Sensations (From The Developed – Rapidly Adapting. )
SurfaceOf The Body)
Proprioceptive Sensations (Relating To 3. Merkel’s Disc (―Expanded Tip Tactile
The Physical State Of The Body, Including Receptors‖. Found In The Finger Tips And Hairy
Position Sensations, Tendon And Muscle Parts Of The Skin. They Transmit An Initially
Sensations, Pressure Sensations From Strong But Partially Adapting Signal And Then
The Bottom Of The Feet, And Even The A Continuing Weaker Signal That Adapts Only
Sensation Of Equilibrium, Which Is Often Slowly. They Are Responsible For Giving Out
Considered A ―Special‖ Sensation Rather Steady-State Signals That Allow One To Determine
Than A Somatic Sensation.) Continuous Touch Of Objects Against The Skin.
Visceral Sensations (From The Viscera Of Often Grouped Together In A Receptor Organ
The Body; Sensations From The Internal Called Touch Domes. They Are Innervated By
Organs) A Single Large Myelinated Nerve Fiber (Type
Deep Sensations (From Deep Tissues, Such Aβ) And Play Extremely Important Roles In
As From Fasciae, Muscles, And Bone) Localizing Touch Sensations To Specific
Surface Areas Of The Body And In Determining
The Texture Of What Is Felt.)
1. Touch: Generally Results From Stimulation Of
4. Hair End-Organ (Right At The Base Of The
Tactile Receptors In The Skin Or In Tissues
Hair. Feels The Movement Of The Hair Every
ImmediatelyBeneath The Skin
Time It Moves. Adapts Readily And Detects
2. Pressure: Generally Results From Deformation
Mainly The Following: (1) Movement Of Objects
OfDeeper Tissues
On The Surface Of The Body; Or (2) Initial
3. Vibration: Results From Rapidly Repetitive
Contact With The Body.)
SensorySignals
Classified As Separate Sensations, But 5. Ruffini’s Endings (―Multibranched Encapsulated
They Are All Detected By The Same Endings‖. Found In The Deeper Internal
Types Of Receptors. Organs, Slowly Adapting Receptors Respond
However, Some Of The Same Types Of Best In Low Frequencies And Important For
Receptors As Those For Touch And Pressure Signaling Continuous States Of Deformation Of
Are Used. The Tissues, Such As Heavy Prolonged Touch
And Pressure Signals. They Are Also Found In
Joint Capsules And Help To Signal The Degree
Of Joint Rotation.)
6. Pacinian Corpuscle (Ball-Like Receptors
Important For Detecting Tissue Reception,
Largest Receptor Located In The Subcutaneous
Tissue. Found Beneath The Skin And Deep In
The Fascial Tissues Of The Body. They Are
Stimulated Only By Rapid Local Compression
Of The Tissues Because They Adapt In A Few
Hundredths Of A Second.)
, Philippians 2:4 “Instead Of Each Person Watching Out For Their Own Good, Watch Out For What Is Better For Others.”
Dmsa Page 1
Downloaded By Osman Nazir ()
