АкушерствоАнатомияАнестезиологияВакцинопрофилактикаВалеологияВетеринарияГигиенаЗаболеванияИммунологияКардиологияНеврологияНефрологияОнкологияОториноларингологияОфтальмологияПаразитологияПедиатрияПервая помощьПсихиатрияПульмонологияРеанимацияРевматологияСтоматологияТерапияТоксикологияТравматологияУрологияФармакологияФармацевтикаФизиотерапияФтизиатрияХирургияЭндокринологияЭпидемиология

Organ of vision: general plan of the structure of eye. Coats of the eye-ball, transparent medium of the eye-ball. Axillary apparatus of eye

Прочитайте:
  1. Blood supply of the female internal sexual organs
  2. Bones of foot, structure, joints of bones of the foot. Arches of the foot and mechanisms strengthening arches of the foot. Flat food.
  3. Classification of internal organs.
  4. Classification of the female sexual organs inflammatory diseases.
  5. Development of the tissues and organs
  6. Functional anatomy of organ of sense. Understanding of about analysers: their components, classification.
  7. General plan of the structure of hearing, balancing organ, external and middle ear. Blood supply, innervations.
  8. Hindbrain. Pons: external and internal structure. Cerebellum: external and internal structure, nucleuses of cerebellum, their function. The cavity of the hindbrain.
  9. II. General anesthesia
  10. Induction into angiology. Basic principles of structure, branching and classification of blood. The microcirculatory bed.

Eyes are the organs of vision. They detect light and convert it into electro-chemical impulses in neurons. Eye consists of the eye-ball and axillary apparatus. According to the coats of eye-ball, I. fibrous coat forms an external sheath around the eyeball and plays a protective role. To this coat relates sclera and cornea. II. The vascular coat of the eyeball is rich in vessels, soft, dark-colored by the pigment contained in it. To this we can say choroid, the ciliary body and the iris. III. Retina is the innermost of the three coats of eyeball adhering to the vascular coat along its entire length.

Transparent media of eyeball are vitrous body (jelly-like substance which fills the space between the lens and retina), lens (transparent convexo-convex corpuscle which is very important light-refracting medium of the eyeball), the chambers of the eye (the space between anterior and posterior surface of cornea).

The auxiliary apparatus (eyelids, lacrimal organs, and muscles that move the eyeball). Eyelids are kind of sliding shutters protecting the eyeball anteriorly. The conjunctiva of eye covers the whole posterior surface of the eyelids. The lacrimal apparatus consists of the lacrimal glands, which excretes tears into the conjunctiva sac. The lacrimal sac is the upper blind end of the nasolacrimal duct which lies in a special bony depression at the medial angle of the orbit.

 

Дата добавления: 2015-02-02 | Просмотры: 1172 | Нарушение авторских прав


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 |

При использовании материала ссылка на сайт medlec.org обязательна! (0.003 сек.)