Neuroscience Module (NEU 205) PDF

Neuroscience Module (NEU 205) 3- EYE  Skin Eyelid Orbicularis oculi muscle Meibomian gland conjunctiva  4 1 3 6 5 2 1....

Neuroscience Module (NEU 205) 3- EYE  Skin Eyelid Orbicularis oculi muscle Meibomian gland conjunctiva  4 1 3 6 5 2 1. Skin surface (thin skin) 2. Conjunctival surface (palpebral) 3. Eye lashes 4. Striated muscle (orbicularis oculi) 5. Tarsal glands (Meibomian) 6. Tarsal plate Cornea  CHOROID RETINA SCLERA  Inner limiting membrane Retina Histology Department / Eye Faculty of Medicine / Cairo University 10. Inner limiting membrane. 9. Layer of optic nerve fibres. 8. Ganglion cell layer. 7. Inner plexiform layer. 6. Inner nuclear layer 5.Outer plexiform layer 4.Outer nuclear layer 3.Outer limiting membrane 2. Rods & cones layer 1. Pigment cell layer. Retina  Fovea centralis choroid Cones layer Outer limiting memb. Outer nuclear layer Histology Department / Eye Faculty of Medicine / Cairo University 4- Ear Trial Test Histology Department / Eye Faculty of Medicine / Cairo University A- Identify the section. B- The red arrow points to ……………..……… C- The blue arrow points to ……………. D- The black arrow points to ………….. A- Section in the eye lid B- Red arrow: Meibomian glands (tarsal glands) C- Blue arrow: Skin surface (thin skin) D- Black arrow: Orbicularis oculi muscle A-Identify the section. B- Identify structures pointed to by arrows 1 & 2. C- Identify structures pointed to by arrows 3 & 4. A-Section in the eyelid B- 1: skin surface 2: Meibomian glands (tarsal glands) C- 3: Hair follicle 4: orbicularis oculi muscle A) Identify this structure. B) The membranes pointed by red & green arrows are ….. & ….. C) The blue arrow points to ….…. while the star lies in …..…. A) Cornea B) Red arrow: Bowman’s membrane Green arrow: Descemet’s membrane C) Blue arrow: Keratocytes Black star: Substantia propria A)The layer demarcated by the green line is ----- B)The yellow, red & blue arrows point to -----, ----, ---- A) Green line: Substantia propria B)Yellow arrow: Non-keratinized stratified squamous epithelium Red arrow: Descemet’s membrane Blue arrow: Endothelium  C B A a. Identify the structure b. The red rectangle lies in … layer c. The arrowhead points to…., black arrow points to.… d. Layers A, B & C are …., ….. & ….. a. Retina b. Red rectangle: Ganglion cell layer c. Arrowhead: Outer limiting membrane. Black arrow: retinal pigmented epithelium d. A: Outer nuclear layer B: Inner nuclear layer C: Choroid A) Identify the structure marked by blue line. B) The depressed spot marked by red circle is called ……..… C) The yellow arrow points to ……. while green star denotes ………. A) Blue line: Retina B) Red circle: Macula lutea (fovea centralis) C) Yellow arrow: photoreceptor layer Green star: outer nuclear layer A- Identify the curved arrow, arrow and arrow-head B- Identify 1, 2 & 3 1 2 3 A- Curved arrow: stria vascularis Arrow: basilar membrane Arrowhead: vestibular membrane B- 1: scala vestibuli 2: scala media 3: scala tympani Identify the structure Name 1, 2, 3, 4, 5, 6, 7 & 8 1: basilar membrane 2: outer phalangeal cell 3: inner phalangeal cell 4: outer hair cell 5: inner hair cell 6: outer pillar cell 7: inner pillar cell 8: tunnel of Corti A) Identify this structure. B) The cells pointed by the black and the green arrows are --- & --- C) The spaces denoted by 1 & 2 are ----- & ------. A) Organ of Corti B) Black arrow: Outer hair cells Green arrow: Outer phalangeal cells C) 1: Cochlear duct (scala media) 2: Scala tympani A) Identify this structure. B) The red star denotes ---- while the curved arrow points to …. C) The membranes pointed to by the black and green arrows & the arrowhead are --- & ---. D) The arrowhead points to …….. A) Organ of Corti B) Red star: Scala vestibule Curved arrow: stria vascularis C) Black arrow: Basilar membrane Green arrow: tectorial membrane D) Arrowhead: vestibular membrane Labels