This chapter describes the basic anatomy and physiology of eye. The eyeball consists of three layers of tissue: (1) an outer protective layer, (2) a middle layer of blood vessels, pigment cells, and muscle fibres, and (3) an inner, light sensitive layer, called the retina. The outer ...
Even the experts ofoptometryhad to spend years studying this and the basic anatomy of the eye. Unfortunately, not everyone has years to get the full picture, but this guide on basic eye anatomy can help. The Basics of the Pupil We all know what the pupil is, but do you know what the...
The cornea is a transparent dome that sits in front of the colored part of the eye. A cornea’s main purpose is to regulate the amount of light entering the eye. This is a very crucial part of the eye’s anatomy, but can hardly be seen because it is clear. Think of the cornea li...
ZygomaticCheekbones; form part of floor and sidewall of eye orbit PalatineForm the posterior part of the hard palate, floor, and part of the sidewalls of the nasal cavity and floor of orbit Horizontal plateJoined to the palatine processes of the maxillae to complete part of the hard palate ...
Surface Anatomy The anal canal develops from the keratinizing proctodeum distally and the nonkeratinizing cloaca proximally, their junction being the site of the dentate line. We include all of these in the histological anal canal. Immediately above the dentate line, 6 to 10 longitudinally oriente...
Schematic diagram of the anatomy of the alimentary tract of the rabbit. (A) The alimentary tract of the rabbit is adapted for the digestion of large quantities of fibrous food. The teeth continually grow and wear against each other to maintain their shape. The incisors are worn to a fine ...
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functions such asdigestionandbreathing. The second unit of the hindbrain, thepons, also assists in controlling these functions. The third unit, thecerebellum, is responsible for the coordination of movement. Those of you who are blessed with great hand-eye coordination have your cerebellum to ...
https://askabiologist.asu.edu/neuron-anatomy Neurons and Nerves Neurons are unique for many reasons. For one, they have a shape that is not like any other cells. Nerve cells are also some of the longest cells in your body. There are nerve cells as long as a meter. They stretch from ...
(Fig.1g, hand Supplementary Fig.2c–e). The anterior sclerite articulates with a broad heart-shaped head shield that covers the cephalic region and part of the trunk. The head shield is frequently taphonomically displaced14, revealing details of the underlying anatomy (Fig.1a, f, gand ...