Click here to load reader
Upload
777notw777
View
191
Download
1
Embed Size (px)
Citation preview
Does That Make Sense? Coach?
THE VARSITY B-BALL PLAYERS: SENSORY RECEPTORS
LOCATION-
Ex te rocep to r s : LOCATED ON OR VERY NEAR THE BODY SURFACE AND RESPOND
MOST FREQUENTLY TO STIMULI THAT ARISE EXTERNAL TO THE BODY ITSELF. THESE
RECEPTORS CAN SOMETIMES BE REFERRED TO AS CUTANEOUS RECEPTORS BECAUSE OF
THEIR PLACEMENT IN THE SKIN(1) IN RELATION TO BASKETBALL , THIS COULD BE
CONSIDERED THE STARTERS WHO PLAY THE MOST MINUTES OR THE MOST FREQUENTLY
AND ARE ALWAYS FIRST TO BE RECOGNIZED.
V I S C E R O C E P T O R S : LOCATED INTERNALLY, OFTEN WITHIN THE
VISCERA, AND WHEN STIMULATED PROVIDE INFORMATION ABOUT THE
INTERNAL ENVIRONMENT. THEY’RE ALSO INVOLVED IN MEDIATING
SENSATIONS SUCH AS HUNGER AND THIRST.(1) IN RELATION TO
BASKETBALL, THIS COULD BE CONSIDERED THE 6TH MAN WHO PLAYS
BASICALLY AS MUCH AS THE STARTERS AND THEIR ROLES ARE JUST AS
IMPORTANT AS THE STARTERS.
P R O P C I O C E P T O R S : A SPECIALIZED TYPE OF VISCEROCEPTORS.
THEY ARE LESS NUMEROUS AND GENERALLY MORE SPECIALIZED THAN
OTHER INTERNALLY PLACED RECEPTORS, AND THEIR LOCATION IS
LIMITED TO SKELETAL MUSCLE(1) IN RELATION TO BASKETBALL,
THIS COULD BE CONSIDERED THE BACK-UPS WHO MIGHT NOT PLAY
VERY MUCH BUT STILL ARE CONSIDERED AS PART OF THE TEAM
Does That Make Sense? Coach?
STIMULUS DETECTED-
M E C H A N O R E C E P T O R S : ACTIVATED BY MECHANICAL STIMULI THAT
IN SOME WAY “DEFORM” OR CHANGE THE POSITION OF THE
RECEPTOR, RESULTING IN THE GENERATION OF A RECEPTOR
POTENTIAL.(1)
C H E M O R E C E P T O R S : RECEPTORS OF THIS TYPE ARE ACTIVATED BY
EITHER THE AMOUNT OR THE CHANGING CONCENTRATION OF
CERTAIN CHEMICALS. THE SENSES OF TASTE AND SMELL DEPEND ON
CHEMORECEPTORS. (1)
T H E R M O R E C E P T O R S : ARE ACTIVATED BY CHANGES IN
TEMPERATURE. THE THERMORECEPTOR IS LIKE A BASKETBALL PLAY,
WHEN A PLAYER IS ON FIRE YOU WANT TO MAKE A PLAY FOR HIM TO
KEEP MAKING SHOTS AND ALL THAT HARD WORK MAKES HIM SWEET.
N O C I C E P T O R S : THIS TYPE OF RECEPTORS IS ACTIVATED BY INTENSE
STIMULI OF ANY TYPE THAT RESULT IN TISSUE DAMAGE. THE CAUSE
(13) ©
Does That Make Sense? Coach?
MAY BE A TOXIC CHEMICAL, INTENSE LIGHT, SOUND, PRESSURE, OR
HEAT. THE SENSATION PRODUCED IS ONE OF PAIN. THIS IS LIKE
WHEN YOU TEAR A MUSCLE RUNNING OR JUMP TO GET A
BASKETBALL.
P H O T O R E C E P T O R S : THIS TYPE OF RECEPTOR IS FOUND ONLY IN
THE EYE. PHOTORECEPTORS RESPOND TO LIGHT STIMULI IF THE
INTENSITY IS GREAT ENOUGH TO GENERATE A RECEPTOR POTENTIAL.
St rucTURE-
F ree Ne rve End ing : IS THE MOST COMMON AND THE MOST SIMPLEST SENSORY
DISTRIUTED SENSORY RECEPTORS.
(14) ©
Does That Make Sense? Coach?
Roo t Ha i r P l exu se s : THIS IS WHAT LETS YOU FEEL LIGHT TOUCHES ON YOUR
SKIN. FOR EXAMPLE WHEN YOU’RE ON THE COURT AND SOMEONE BARELY RUBS PAST
YOU, YOU CAN PRETEND LIKE THEY HIT YOU HARD FOR A FREE POINT SHOT
M E R K E L D I S C : ARE RESPONSIBLE FOR MEDIATING SENSATIONS OF
LIGHT OR DISCRIMINATIVE (TOUCH), ALSO FOUND IN THE FREE
NERVE ENDINGS. THE TERM “DISCRIMINATIVE TOUCH” MEANS
SIMPLY THAT THE SENSATION, WHICH MAY BE SUBTLE CAN BE
LOCATED EXACTLY ON THE SKIN SURFACE.
M E I S S N E R C O R P U S C L E : IS AN EGG SHAPED MECHANORECEPTORS.
THEY ARE ALSO NUMEROUS IN SKIN AREAS, SUCH AS THE NIPPLES,
FINGERTIPS, AND LIPS.
P A C I N I A N C O R P U S C L E S : ARE ALSO MECHANORECEPTORS AND WHEN
THEY’RE SECTIONED THEY TEND TO SHOW THICK LAMINATED
CONNECTIVE TISSUE CAPSULES. THEY ARE FOUND DEEP DERMIS OF
THE SKIN ESPECIALLY IN THE HANDS AND FEET, AND ARE ALSO
NUMEROUS IN JOINT AREAS THROUGHOUT THE BODY. PACINIAN ALSO
(15) ©
Does That Make Sense? Coach?
RESPONDS QUICKLY TO SENSATIONS OF DEEP PRESSURE, HIGH
FREQUENCY OF VIBRATIONS AND STRETCH
M U S C L E S P I N D L E S : CONSIST OF A DISCRETE GROUPING OF ABOUT 5
TO 10 MUSCLE FIBERS CALLED INTRAFUSAL FIBERS WHICH ARE
SURROUNDED BY A DELICATE CAPSULE. THE MUSCLE SPINDLES ARE
FOUND IN THE STRETCH RECEPTORS, BESIDES THE GOLGI TENDON
MUSCLE IT IS ONE OF THE MOST IMPORTANT STRETCH RECEPTORS
G O L G I T E N D O N O R G A N S : THE ONE OF THE IMPORTANT STRETCH
RECEPTORS ALONG WITH THE MUSCLE SPINDLES. THEY ARE LOCATED
AT THE POINT OF JUNCTION BETWEEN MUSCLE TISSUE AND TENDON.
EACH GOLGI TENDON ORGAN CONSIST OF DENDTRIES OF AFFERENT
(SENSORY) NERVES CALLED “TYPE IB NERVE FIBERS” WHICH ARE
ASSOCIATED WITH BUNDLES OF COLLAGEN FIBERS FROM THE TENDON
AND SURROUNDED BY A CAPSULE.
B-BALL NOT STREET-BALL: SPECIAL SENSES
O L F A C T O R Y R E C E P T O R S : EXTREMELY SENSITIVE, CAPABLE OF BEING
STIMULATED BY EVEN VERY SLIGHT ODORS CAUSED BY JUST A FEW
MOLECULES OF A PARTICULAR CHEMICAL
O L F A C T O R Y P A T H W A Y S : IF THE LEVEL OF ODOR-PRODUCING
CHEMICALS DISSOLVED IN THE MUCUS SURROUNDING THE OLFACTORY
CILIA REACHES A THRESHOLD LEVEL, A RECEPTOR POTENTIAL AND,
THEN, AN ACTION POTENTIAL WILL BE GENERATED AND PASSED TO
THE OLFACTORY NERVES IN THE OLFACTORY BULB
Does That Make Sense? Coach?
N E U R A L P A T H W A Y : THE GENERATION AND PROPAGATION OF THE
ACTION POTENTIAL, OR NERVE IMPULSE, THEN TRANSMIT THE
SENSORY INPUT TO THE BRAIN
P H O T O P I G M E N T S : LIGHT-SENSITIVE PIGMENTED COMPOUNDS THAT
ARE FOUND IN THE OUTER AREA OF BOTH TYPES OF
PHOTORECEPTORS NEAR THE PIGMENTED RETINA
R O D S : HIGHLY SENSITIVE TO LIGHT THAT EVEN DIM LIGHT CAUSES A
RAPID BREAKDOWN OF THE PHOTOPIGMENT INTO ITS OPSIN AND
RETINAL COMPONENTS
C O N E S : THREE TYPES REPRESENTED IN THE RETINA, EACH CONTAINS
A PHOTOPIGMENT DIFFERENT FROM THE RHODOPSIN FOUND IN ROD
CELLS. LESS SENSITIVE TO LIGHT
(©11)
THE MECHANISM OF HEARING IS SOLELY BASED IN THE COCHLEAR DUCT, WHICH
EVERY BASKETBALL PLAYER IS BORN WITH. THIS DUCT CONTAINS THE ORGAN OF CORTI,
WHICH ARE WHERE THE HAIR CELLS ARE LOCATED (ALL HAIRS HAVE NERVES ON THEM.)
Does That Make Sense? Coach?
HIGH-FREQUENCY SOUND WAVES (SUCH AS A WHISTLE OR THE BUZZER GOING OFF) CAN
BE HEARD BY EVERY PLAYER BECAUSE THE SOUND WAVES CAUSE THE NARROW PART OF
THE BASILAR MEMBRANE NEAR THE OVAL WINDOW TO VIBRATE; THE LOW-FREQUENCY
SOUND WAVES (SUCH AS MAYBE A PLAYER WITH A DEEP VOICE OR EVEN A BOO FROM THE
CROWD) VIBRATE THE MEMBRANE NEAR THE APEX OF THE COCHLEA DUCT WHICH IS WIDER
AND THICKER, BOTH OF THESE FREQUENCIES CREATE BULGES IN THE BASILAR MEMBRANE
IN DIFFERENT POINTS ALONG ITS LENGTH. THIS BULGE CONTROLS WHICH HAIR CELLS ARE
AFFECTED, ULTIMATELY CAUSING THE PLAYER TO RECEIVE A HIGHER OR LOWER PITCH.
THE NEURONAL PATHWAY OF HEARING STARTS AT THE COCHLEA “SNAIL” PART AND GOES
ALL THE WAY TO THE BRAIN WHICH RECEIVES THE NERVE IMPULSES AND SENDS THE BACK
TO THE COCHLEA NERVE. (©1)
(©10)
SENSE OF BALANCE AND DYNAMIC EQUILIBRIUM ARE SYNONYMOUS TERMS. BALANCE IS
MAINTAINED BY THE FLUID IN THE SEMICIRCULAR CANALS ATTACHED TO THE COCHLEA,
WHICH AS STATED BEFORE EVERY BASKETBALL PLAYER IS BORN WITH. TO MAINTAIN THE
BALANCE THE FLUID HAS TO BE SEMI STILL; HOWEVER, WHEN A PLAYER SHAKES HIS HEAD
OR GETS KNOCKED TO THE GROUND HIS BALANCE COULD’VE BEEN THROWN OFF FROM THE
FLUID BEING TO SHAKEN UP. BASKETBALL PLAYERS NEED LARGE AMOUNT OF BALANCE
BECAUSE THEY HAVE TO BE ABLE TO DRIBBLE AND LOOK UP WHILE RUNNING DOWN THE
COURT. WITHOUT THE SEMICIRCULAR CANALS AND COCHLEA THE BASKETBALL PLAYERS
WOULDN’T BE ABLE TO CONDUCT A GREAT GAME. (©1)
Does That Make Sense? Coach?
S T R U C T U R E O F T H E E Y E : THE EYEBALL IS AN IRREGULAR SHAPED
SPHERE UNLIKE A BASKETBALL THAT IS A PERFECTLY SHAPED SPHERE
WITH GRIP
C A V I T I E S & H U M O R S : THE CAVITIES IS THE SPACE BETWEEN THE
CORNEA AND IRIS FILLED WITH AQUEOUS HUMOR, JUST LIKE THE
SPACE BETWEEN YOU AND THE BASKETBALL HOOP AND IN ORDER TO
MAKE IT WORK YOU GOT TO GET TO THE HOOP JUST AS THE CAVITIES
FILL THE SPACE BETWEEN THE CORNEA AND IRIS. THE HUMORS OF
THE EYE IS LIKE JELLY THAT GIVES YOUR EYE ITS SHAPE, JUST LIKE A
BASKETBALL IS GIVEN SHAPE BY THE AIR THAT FILLS IT.
V I S I O N M U S C L E S : THE MUSCLES IN YOUR EYE HELP MOVE YOUR
EYEBALL AND FOCUS IN ON AN OBJECT, IN BASKETBALL THIS IS
IMPORTANT SO YOU CAN FOCUS ON THE HOOP.
(16) ©
Does That Make Sense? Coach?
A C C E S S O R I E S O F T H E E Y E : THESE ACCESSORIES ARE THE EYELIDS,
EYEBROWS, AND EYELASHES WHICH ARE ALL VERY IMPORTANT
BECAUSE MOST BASKETBALL PLAYERS LOOK FIT AND NOT UGLY.