Anatomy practical 1 (Exercise 23)
(Product) Whitish, oily secretion
(Accessory Structure) Caruncle
(Product) Sweat
(Accessory Structure) Ciliary Glands
(Product) Mucus
(Accessory Structure) Conjunctiva
(Product) Saline Solution
(Accessory Structure) Lacrimal Glands
(Product) Oily Secretion
(Accessory Structure) Tarsal or Meibomian Glands
(Accessory Structure) Conjunctiva
(Product) Mucus
(Accessory Structure) Tarsal or Meibomian
(Product) Oily Secretion
(Accessory Structure) Lacrimal Glands
(Product) Saline Solution
(Accessory Structure) Ciliary Glands
(Product) Sweat
(Accessory Structure) Caruncle
(Product) Whitish, oily secretion
Rods, Cones, Rods, Cones.
(Rods or Cones) The dim light receptors are the ______. Only ______ are found in the fovea centralis, whereas mostly ______are found in the periphery of the retina. _____ are the photoreceptors that operate best in bright light and allow for color vision.
Retina
(Visual pathway to the occipital lobe) Bipolar cell
Visual cortex of the cerebral hemisphere(s).
(Visual pathway to the occipital lobe) Cortical Neuron
Retina
(Visual pathway to the occipital lobe) Ganglion cell
Neuron
(Visual pathway to the occipital lobe) Neuron
Retina
(Visual pathway to the occipital lobe) Photoreceptor cell
Cornea
Anterior continuation of the sclera----your "window on the world"
Fovea Centralis
Area of critical focusing and discriminatory vision.
At the optic disc.
At what point is the retina attached to the posterior aspect of the eyeball?
Sclera Venous Sinus
Drains aqueous humor from the eye.
Aqueous Humor
Fluid filling the anterior segment of the eye.
Ciliary process of the ciliary body.
Form (by filtration) the aqueous humor.
Choroid
Forms the bulk of the heavily pigmented vascular layer.
The right optic nerve contains fibers from the right eye only. The right optic tract contains fibers from the lateral aspect of the right eye and the medial aspect of the left eye.
How is the right optic tract anatomically different from the right optic nerve?
Photoreceptors, bipolar cells, ganglion cells.
In the neural layer of the retina, the neuron populations are arranged as follows from the pigmented layer to the vitreous humor. It goes.....
Sty
Inflammation of a small oily or sweat gland associated with the eye.
Conjunctivitis
Inflammation of the conjunctiva.
Retina
Layer containing the rods and cones.
Cornea, aqueous humor, lens, vitreous humor.
Light-bending media of the eye.
Ciliary Body
Modification of the choroid that controls the shape of the crystalline lens and contains the ciliary muscle.
Right Optic Nerve
Normal Vision in left eye visual field; absence of vision in the right eye visual field.
Right optic tract (or right visual cortex).
Normal vision in both eyes for right half of the visual field; absence of vision in both eyes for left half of the visual field.
Optic Disc
Part of the retina that lacks photoreceptors.
Ciliary Body, Iris
Smooth muscle structures.
Vitreous Humor
Substance occupying focusing and discriminatory vision.
Sclera
The "white" of the eye. Also composed of tough, white, opaque, fibrous connective tissue.
Ganglion
The axons of the _______ cells form the optic nerve, which exists from the eyeball.
To package, protect, and cushion the eyeball in the bony orbit.
The eyeball is wrapped in adipose tissue within the orbit. What is the function of adipose tissue?
The Radial Layer
The iris is composed of primarily of two smooth muscle layers, one arranged radially and the other circularly. Which layer dilates the pupil?
Superior Oblique
Turns the eye down and laterally.
Inferior Rectus
Turns the eye down and medially.
Lateral Rectus
Turns the eye laterally.
Medial Rectus
Turns the eye medially.
Inferior Oblique
Turns the eye up and laterally.
Superior Rectus
Turns the eye up and medially.
Pigmented and neural layers.
Two major layers of the retina layer.
Autonomic Nervous System
What are the intrinsic eye muscles controlled by?
Thin yellowish-white or tan membrane (often becomes crumpled during dissection of the eye)
What does the retina look like?
To reflect light that enters the eye, this increasing light stimulation of the retina under dim light conditions.
What is the function of the Tapetum Lucidum?
Tapetum Lucidum
What modification of the choroid that is not present in humans is found in the cow eye?
Because tears drain into the nasal cavities via the nasolacrimal ducts.
Why does one often have to blow one's nose after crying?
In dim light, observing distant objects.
You would expect the pupil to be dilated in which of the following circumstances?
