Activity 1: hair structure a) Describe‚ in detail‚ the structure of a hair identifying the 3 layers. Hairs are dead structures that are made of hardened protein called keratin. Keratin provides the body with a protective toughness for its entire surface. Hair is comprised of 3 layers these are as follows the cuticle‚ the cortex and the medulla. The cuticle is the outer layer of the scale cells with each scale overlapping each other towards the tip of the hair. This layer contains
Premium Skin Hair follicle Hair
Natural Hair Expo every year‚ giving great advice on how to keep your natural hair healthy. This big event consists of booths‚ vendors‚ a concert‚ hair stylist stations‚ food‚ etc. The Nashville Natural Hair & Wellness Expo was very expensive‚ entertaining‚ and informative. The expo tickets ranged from different prices. Of course the V.I.P ticket was the most expensive‚ the big thing about this ticket was that you were allowed to eat the wonderful smelling food. You could also get your hair and
Premium Tennessee Hairstyle Hairdressing
There are some limitations to the senses of sight and sense of hearing. For example‚ our eyes cannot see very small objects such as germs while our ears could not hear very small or very strong. However‚ with the advent of modern technology‚ obstacles and limitations to the senses as this can also be overcome. To overcome the limitations of sight‚ the telescope‚ microscope and magnifier are used. The telescope let the space scientists to be able to look very distant objects like the moon‚ so that
Premium Sound Sense Hearing
Higher Certificate in Civil Engineering Subject : Structural Analysis I - Laboratory Report Laboratory Venue : HKIVE (Tsing Yi)‚ Room CL02 Date & Time : 15 October 2001‚ 20:15 to 21:30 Experiment No. 2 : Static Equilibrium of Beam Objective: 1. To study the vertical equilibrium of (a) a simply supported beam and (b) a two-span continuous beam when subjecting to loads. 2. To determine the reactions of the beams by (a) the experimental set-up and (b) by using the principles of static and method
Premium Experiment
The importance of calcium and phosphorus is that they play a role in the body and their role is to build bones and teeth this is because they allow rigidity to the structure of the bones and teeth. This is because bones are continuously being rebuilt with new bone being formed and also teeth as well but at a slower rate but this is why calcium and phosphorus is needed and is important. The role of calcium is that it circulates blood and it also helps blood clot in other body tissues and also plays
Premium
eukaryotic organelles. ”A eukaryotic cell is sectioned by internal membranes into different functioning categories called organelles. For example‚ the nucleus houses DNA‚ the genetic component that controls the cells activities. (Boundless. “Introduction” Boundless Biology). The Cytoplasm is the material between the cell membrane and the nucleus. It has a lot of responsibilities within the cell. It contains enzymes for breaking down waste and also gives the cell its shape. The Nucleus or the brain
Premium Cell Organelle Eukaryote
SPECIAL SENSES EYES – the organs of sight. We learn much about the environment through these senses. IMPORTANCE: We learn about the people‚ things and happenings around us. To students‚eyes are very important. Eyes makes students understand their lessons better by observing‚ reading ang analysing facts. With the eyes we may avoid accidents ant other cicumstances that makes us sick. COMMON AILMENTS: 1st Group • Myopia - nearsightedness‚ clearly sees object near them. Concave
Premium Ear Rash Squamous cell carcinoma
why hearing is mechanical in nature. (5 points) 1. Sound waves vibrate the tympanic membrane. 2. Auditory ossicles vibrate. Pressure is amplified. 3. Pressure waves created by the stapes pushing on the oval window move through fluid in the scala vestibuli. 4a. Sounds with frequencies blow hearing travel through the helicotrema and do not excite hair cells. 4b. Sounds in the hearing range go through the cochlear duct‚ vibrating the basilar membrane and deflecting hairs on inner hair cells
Premium Eye Auditory system
LIMITATION OF SIGHT AND HEARING INTRODUCTION Humans have sight and hearing limitation. Without any devices‚ our sight and hearing was limited. Most of the limitation of sight can be overcome with the help of certain optical instruments such as magnifying glass‚ microscope‚ binoculars and others. The range of frequency of hearing in human 20 Hz to 20 000 Hz. It was different according to the age of a person. Hearing limitations can be overcome by using devices such as microphone‚ stethoscope‚ earphone
Premium Sound Lens Ultrasound
Nov. 19‚ 2012 Special Senses Through out your lifetime you have experienced the world through your senses – sight‚ sound‚ taste‚ smell‚ touch – or more accurately your special senses which include Vision‚ Audition‚ Equilibrium‚ Olfaction‚ and Gustation. After you have lived awhile your body changes so it should be no surprise that your ability to sense and perceive the world would change as well. Through senses that perceive light‚ sound‚ and smell‚ you gain so much information about
Premium Sense Olfaction Taste