Zmyslové orgány psa
Zmyslové ústrojenstvo slúži na komunikáciu organizmu s vonkajším prostredím a tiež analyzujú zmeny vo vnútri organizmu. Zmyslové orgány sú vybavené takzvanými receptormi, ktoré prinášajú mozgu dôležité informácie. Každý receptor je určený na vyhradený druh podnetov. Medzi zmyslové orgány patrí zrak, sluch, čuch, chuť.
Zrak
V minulosti sa predpokladalo, že pes vidí čiernobielo. Výskumy v posledných rokoch ukázali, že pes rozoznáva výrazné farby a pravdepodobne vidí pastelovo.Dokaže rozlišovať červnú,modrú a fialovú v roznych odtieňoch. Pes zaregistruje pohybujúcu sa osobu zo vzdialenosti cca. 500 m, svojho psovoda spozná asi zo 100 m. Za šera vidí trikrát lepšie ako človek pretože má v oku tzv. mačacie oko(tapetum lucidum).
Sluch
Väčšina posv má ušnice ovládané 17 svalmi.Kým človek začuje šelest zo vzdialenosti 3-4 m, pes ten istý zvuk začuje už zo vzdialenosti cca. 25 m. Psy dokážu vnímať aj ultrazvuk do 35 000 až 60 000 Hz,mačka do 25 000 Hz a človek do 20 000 Hz. Využíva sa to pri psích píšťalkách, ktoré sa využívajú na privolanie psa, pričom ľudia nič nepočujú.Ultrazvuk nad 20 000 Hz je pre človeka nepočuteľný.
Čuch
V celej zvieracej ríši majú už len určité nočné motýle taký vyvinutý čuch,že im slúži na podstatne väčšie vzdialenosti. Pes dokáže zistiť prítomnosť niektorých látok aj v milionkrát nižšej koncentrácii než človek. Čuchové pole človeka má 3 cm2, nemeckého ovčiaka 160 cm2. Pes čuchom vyhľadáva potravu, orientuje sa v teréne, identifikuje veci, osoby, zvieratá. Má veľmi dobrú čuchovú pamäť, ktorá sa využíva pri stopovaní ľudí a zvierat. Pes dokáže rozlíšiť čerstvosť stôp a na základe toho zvoliť správny smer pri stopovaní.
Chuť
V porovnaní s človekom má pes len málo vyvinutú chuť.Pes sa v spolužití s človekom naučil spoznávať veľa nových chutí a dodnes má často záľubu v potrave pripravenú človekom.
Šiesty zmysel
Podľa niektorých názorov majú psy aj nejaký šiesty zmysel, ktorým dokážu detekovať geopatogénne zóny. Využíva sa napríklad tak, že psa pustia do prázdnej miestnosti a kde si ľahne, tam sa umiestní posteľ. Kam si ľahne mačka by sa vraj naopak posteľ dávať nemala.
Niektoré psy dokážu predvídať epileptický záchvat majiteľa a svojim správaním ho naň preventívne upozorniť. Predpokladá sa, že pred záchvatom sa mení vôňa človeka.
Pes je citlivý na vibrácia rovnako ako mačka.Može podstatne skor ako človek vycítiť otrasy zeme.Kuriozne však je,že psy reagujú len ak hrozí nebezpečenstvo pravé zemetrasenia.
Pes údajne dokáže občas predvídať smrť svojho pána,aj keď sa okoliu zdá,že na to nie je žiadny dovod.Podobne vraj aj celkom presne cítia,kedy je čas na neobľúbené kúpanie,a pritom naň ešte nezačali prípravné práce.
Chrup
Vo všeobecnosti má pes 42 zubov ktoré sa delia nasledovne:
Horná čeľusť:6 rezákov,2 špiciaky(očné zuby),8 črenových zubov(predstoličiek),4 stoličky
Spodná čeľusť: 6 rezákov,2 špiciaky,8 črenových zubov a 6 stoličiek
Tak ako u človeka,aj u psa prvý chrup šťeňaťa pozostáva z mliečnych zubov,ktoré po prerezaní nahradí trvalý chrup.
Podľa tvaru čeľuste rozoznávame:
Nožnicový záhryz
Kliešťový záhryz
Predhryz
Podhryz
Psy majú silnů zbraň:ZUBY Ak je potrebné,možu svojimi silnými svalmi sánky sposobiť značné zranenia.Krížence vážiace 20kg sa možu zahryznúť silou 165kg,kým človek vyvinie sotva jednu tretinu(od 20 do 29 kg).
Komentáre
Prehľad komentárov
Thank you for any other informative website. Where else could I get that kind of info written in such an ideal way? I have a undertaking that I'm just now operating on, and I have been on the look out for such information. tastyandinteresting.be/useful-tips/tretinoin-kraem-online.php tretinoin kräm online
hollywood tema maskerad aretenb.se
(aretenb.se, 27. 4. 2020 0:05)
It's awesome in favor of me to have a web page, which is valuable designed for my know-how. thanks admin lugi.aretenb.se/music/hollywood-tema-maskerad.php hollywood tema maskerad
hvordan ta puls tastyandinteresting.be
(tastyandinteresting.be, 26. 4. 2020 18:44)
I'm really loving the theme/design of your web site. Do you ever run into any internet browser compatibility problems? A number of my blog audience have complained about my site not operating correctly in Explorer but looks great in Firefox. Do you have any ideas to help fix this issue? tastyandinteresting.be/relaxation/hvordan-ta-puls.php hvordan ta puls
dennis maglic pälsjacka tastyandinteresting.be
(tastyandinteresting.be, 26. 4. 2020 10:22)
I don't know if it's just me or if everyone else experiencing problems with your site. It seems like some of the written text in your content are running off the screen. Can someone else please comment and let me know if this is happening to them too? This might be a issue with my internet browser because I've had this happen previously. Thank you tastyandinteresting.be/travels/dennis-maglic-paelsjacka.php dennis maglic pälsjacka
creme vergetures anciennes aretenb.se
(aretenb.se, 26. 4. 2020 7:50)
What's up, after reading this remarkable article i am too glad to share my know-how here with colleagues. riero.aretenb.se/decorations/creme-vergetures-anciennes.php creme vergetures anciennes
Law 2020 Estonian, European firms
(Waynerap, 26. 4. 2020 5:09)Registration and sale of ready-made Estonian, European firms. https://diamont.ee/en/company-registration/ Companies with nominee service and bank account. Crypto license. AML service. Remotely. Fast, professional. Zero tax rate. Accounting services
omega pharma aco tastyandinteresting.be
(tastyandinteresting.be, 26. 4. 2020 2:09)
When someone writes an post he/she retains the idea of a user in his/her brain that how a user can understand it. So that's why this paragraph is perfect. Thanks! tastyandinteresting.be/decorations/omega-pharma-aco.php omega pharma aco
badkar som haller varmen aresgrb.se
(aresgrb.se, 25. 4. 2020 20:31)
Hello, just wanted to say, I liked this blog post. It was inspiring. Keep on posting! kingh.aresgrb.se/sport/badkar-som-hller-vaermen.php badkar som haller varmen
traitement corne pied tastyandinteresting.be
(tastyandinteresting.be, 25. 4. 2020 17:26)
I was recommended this blog by means of my cousin. I'm no longer positive whether or not this put up is written through him as no one else know such detailed approximately my problem. You are incredible! Thanks! tastyandinteresting.be/beauty/traitement-corne-pied.php traitement corne pied
afro frisorer i stockholm aretenb.se
(aretenb.se, 25. 4. 2020 16:49)
I really like what you guys are usually up too. This sort of clever work and coverage! Keep up the great works guys I've included you guys to our blogroll. feifl.aretenb.se/for-men/afro-frisoerer-i-stockholm.php afro frisorer i stockholm
lediga lokaler kungälv tastyandinteresting.be
(tastyandinteresting.be, 25. 4. 2020 8:37)
Excellent blog here! Also your site loads up very fast! What host are you using? Can I get your affiliate link to your host? I wish my site loaded up as quickly as yours lol tastyandinteresting.be/travels/lediga-lokaler-kungaelv.php lediga lokaler kungälv
gardintyger pa metervara aretenb.se
(aretenb.se, 25. 4. 2020 2:34)
Hurrah, that's what I was searching for, what a material! present here at this webpage, thanks admin of this website. bita.aretenb.se/sport/gardintyger-p-metervara.php gardintyger pa metervara
prima ns alpacca tastyandinteresting.be
(tastyandinteresting.be, 24. 4. 2020 23:56)
It's very trouble-free to find out any matter on net as compared to textbooks, as I found this article at this web page. tastyandinteresting.be/beautiful-things/prima-ns-alpacca.php prima ns alpacca
basta vedeldade badtunnan aresgrb.se
(aresgrb.se, 24. 4. 2020 20:45)
The other day, while I was at work, my sister stole my iPad and tested to see if it can survive a twenty five foot drop, just so she can be a youtube sensation. My apple ipad is now destroyed and she has 83 views. I know this is totally off topic but I had to share it with someone! deeso.aresgrb.se/decorations/baesta-vedeldade-badtunnan.php basta vedeldade badtunnan
eqvrqigr
(dlvbyocu, 24. 4. 2020 18:58)
https://www.zone-turf.fr/forum/prix-du-jockey-club/stock-car-racing-game-hack-lightning-mcqueen-at-talladega-wreckfest--42338.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/daily-themed-crossword-puzzle-game-hack-angry-birds-dream-blast-hack-free-44820.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/cookbook-master-recipe-chef-game-hack-debunking-fake-videos-who-s-behind-43728.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/sky-children-of-the-light-game-hack-sky-children-of-the-light-hack-10000-45474.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/little-alchemy-2-game-hack-little-alchemy-2-how-to-make-thermometer-43986.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/pokerstars-play-texas-holdem-game-hack-5-quick-tips-to-win-a-lot-more-money-45984.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/soccer-stars-online-football-game-hack-soccer-star-2019-hack-how-to-get-44846.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/police-chase-smash-game-hack-extreme-police-chases-crashesfails-22-beamng-40302.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/cheat-master-5000-game-hack-help-us-unmask-the-game-master-project-zorgo-is-44076.html
https://www.zone-turf.fr/forum/prix-du-jockey-club/record-run-game-hack-more-google-dinosaur-game-hacks-arcade-mode-40628.html
tecken pГҐ missfall tastyandinteresting.be
(tastyandinteresting.be, 24. 4. 2020 11:53)
Appreciate this post. Let me try it out. tastyandinteresting.be/for-men/tecken-p-missfall.php tecken pГҐ missfall
julskinka i stekpГҐse tastyandinteresting.be
(tastyandinteresting.be, 24. 4. 2020 8:37)
When I initially commented I seem to have clicked on the -Notify me when new comments are added- checkbox and from now on whenever a comment is added I receive four emails with the exact same comment. Perhaps there is a way you can remove me from that service? Cheers! tastyandinteresting.be/beauty/julskinka-i-stekpse.php julskinka i stekpГҐse
New The best Deal On cash 2020
(freevbucks7Antep, 24. 4. 2020 6:36)
Wonderful items from you, guy. I use consider your things previous to and if you're just too wonderful. I actually actually like what an individual have acquired here, undoubtedly like what you are saying and the approach during which you claim it. You're which makes it entertaining and you carry on and look after to stay it smart. I cant wait to learn much more from you. That is actually the terrific web site.
https://www.nvidia.com/en-us/geforce/forums/gamestream/19/358659/free-v-bucks-2020-generator-unpatched/
https://www.nvidia.com/en-us/geforce/forums/fortnite/31/359038/-50kfree-v-bucks-generator2020-free-v-bucks-genera/
Diabetsclub.com - All About Diabetes, Obesity, Diets and Treatment
(KopylovAbilk, 24. 4. 2020 4:33)
The Internet portal https://diabetsclub.com is dedicated to one of the most common diseases of our time - diabetes. The creators of the resource have collected a huge amount of information for you on this disease, as well as prepared a number of valuable tips on its treatment and prevention.
After studying the materials of the site, you will learn how to correctly recognize diabetes, learn about its types and understand the specifics of medical elimination of the disease. Special attention is paid to the diet for patients with diabetes, as well as the problem of obesity, which plays a significant role in the development and treatment of the disease.
bygga stall billigt aretenb.se
(aretenb.se, 24. 4. 2020 4:23)
Thanks for sharing your thoughts about. Regards praj.aretenb.se/advice-girlfriends/bygga-stall-billigt.php bygga stall billigt
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93
tretinoin kräm online tastyandinteresting.be
(tastyandinteresting.be, 27. 4. 2020 2:53)