Nervous laughter

. The ear is made up of three parts: the outer, middle, and inner ear.The outer part of the ear collects sound. Sound travels through the auricle and the auditory canal, a short tube that ends at the eardrum. Sound entering the outer ear travels through the middle ear and causes the eardrum and ossicle in the middle ear to vibrate. As it travels, it amplifies and changes from air to liquid. When the stapes moves, it pushes the oval window, which then moves the cochlea. The cochlea takes the…

Introduction The human brain can be divided in terms of its structure as well as function. Structurally under the cranium of any human being exists a brain with two plainly visible parts, each about the size of a fist, known as the right and the left hemispheres of the cerebral cortex. Even though these two hemispheres appear identical in terms of structure, they perform distinct functions. Split-brain studies and cognitive research has indicated that the left hemisphere is associated with…

Sonic hedgehog signalling function during nervous system development 13354626 Katie O’Byrne words including references Sonic hedgehog (Shh) is a glycoprotein that is secreted by and diffuses through the developing nervous system. It is a member of the hedgehog family of signaling molecules. The Sonic hedgehog signaling cascade is an integral trafficking system that influences the pattering and growth processes involved in the development of multicellular organisms. Shh is particularly important…

‘Protein’ plays a vital role for our body as we cannot survive without it. Protein is an important building block of bones, muscles, cartilage, skin and blood. It is also a macronutrient, means the body needs relatively large amount of it. Recently, almost everyone starting from the teenage ageto the age of 30-40 wants to stay healthy . There are bodybuilders too who are working hard to accomplish their goal, they ingest protein shakes. Since protein shakes fulfill the purpose of deliverying the…

Recent work done: Preparation of Fluconazole b-Cyclodextrin Complex Ocuserts: In Vitro and In Vivo Evaluation Hindustan Abdul Ahad and et. al. developed ocuserts containing fluconazole b- cyclodextrin. Erodible inserts • The solid inserts absorb the aqueous tear fluid and gradually erode or disintegrate. The drug is slowly leached from the hydrophilic matrix. • They quickly lose their solid integrity and are squeezed out of the eye with eye movement and blinking. • Do not have to be removed…

Brain Plasticity refers to the ability of the brain to change its structure or functions by changing the neural connections. Real life evidences such as Paul Bach-y-Rita‟s father‟s recovery after stroke, increased gray matter volume in London taxi drivers‟ hippocampus, etc. have supported the theory of neuroplasticity. This paper also discusses the applications of brain plasticity. Some of these include restoration of vision, recovery from brain injury and working of Brain Computer Interface and…

Discussions Perceptual process Perception refers to the set of processes we use to make sense of all the stimuli you encounter every second, from the glow of the computer screen in front of you to the smell of the room to the itch on your ankle. Our perceptions are based on how we interpret all these different sensations, which are sensory impressions we get from the stimuli in the world around us. Perception enables us to navigate the world and to make decisions about everything. There are…

The supraspinatus is one of the four muscles that make up the rotator cuff in the shoulder. The body of the tendon lies along the supraspinous fossa of the scapula and attaches laterally to the humeral head. Its purpose is to withstand the inferior gravitational exertions set over the shoulder joint due to the downward pull of the weight of the upper limb. Not only that, but the supraspinatus also helps the shoulder joint stay in place. The supraspinatus muscle is primarily used for abduction.…

3. The earthworm has a segmented body with a mouth at the anterior end and an anus at the posterior end. It has a smooth, purple dorsal side and a rough, yellow ventral side with setae. Two sperm grooves run along the body from segment 15 (where sperm ducts are also located) to the clitellum, which looks like a tube surrounding the earthworm’s body and is closer to the anterior end. 4. The setae are likely on the outside of the body for more effective locomotion. They allow the earthworm to…

As part of my role as a care worker, from time to time I may be required to assist service users to move or reposition them. It is important to understand the basic anatomy and physiology to help reduce any harm to myself or others when using moving and handling procedures. Muscles act like levers and allow bone, at a joint, to act like hinges. Muscles pull and move bones at particular joints which makes the joint move and therefor the body moves. When a muscle contracts it pulls the bone at a…