💢 فسيو عصبي 10 التذوق
#physiology_of_CNS 10
#CNS
#⃣Taste
## اليوم راح نشرح انا وايااااكم عن اخر حاسة واللهي حاسة التذوق ... واكييييد كلنااااا بيحب اكل الشوكولاتااااا واللهي طعمهاااا رهيب ثح ي حلوين شهيتكم ليهااا ثح عفوااا عفوااا🙈 ويلا نبداااا ي حلوين
*⃣Taste pathways :👇👇👇
0⃣Taste receptor cells line the taste buds that are located on specialized papillae. The
receptor cells are covered with microvilli, which increase the surface area for binding
taste chemicals 👌
🔷Remember That:👇
#⃣✅taste receptors are not neurons👌👌😎
#⃣taste transduction 👇👇
⚪️👆Taste chemicals (sour, sweet, salty, bitter, and umami) bind to taste receptors on the
microvilli and produce a depolarizing receptor potential in the receptor cell👌
1⃣The anterior two-thirds of the tongue:👇👇
🔷has fungiform papillae.
🔷detects salty, sweet, and umami sensations👌
🔷 is innervated by CN VII
(chorda tympani) 👌
2⃣The posterior one-third of the tongue:👇👇👇
🔷 has circumvallate and foliate papillae👌
🔷detects sour(حامض) and bitter (طعم مر)sensations 👌
🔷 is innervated by CN IX (glossopharyngeal)👌
🔷The back of the throat and the epiglottis are innervated by CN X 👌
3⃣CN VII, CN IX, and CN X enter the medulla, ascend in the solitary tract 👌, and terminate
on second-order taste neurons in the solitary nucleus.👇👇
🔷👆They project, primarily ipsilaterally, to the ventral posteromedial nucleus of the thalamus and, finally, to the taste cortex👌
تعليقات
إرسال تعليق