The serous membrane lines the cavities in the body that secrete fluids such as the lungs, heart, stomach, and intestines. The serous membrane is made up of a thin layer or mesothelium covering connective tissue. If the serous membrane got damaged the organs in your body would have a hard time doing their jobs. The fourth and final type of membrane is in charge for surrounding the synovial joints such as the hips, knees, elbows
Each of these lobes has different functions from each other. On the other hand, the neurotransmitters are the information carriers, they carry electrochemical signals to and from the brain throughout the entire body in human beings. Then, we have the nervous system which can actually be divided into two parts, the central nervous system (CNS) and the peripheral nervous system (PNS) where the brain and spinal cord are parts of the CNS. The PNS can still be divided into two specific parts, the somatic nervous system (SNS) and the autonomic nervous system (ANS). While the SNS directs the movements of the skeletal muscles, the ANS regulates involuntary processes such as the heart beating, breathing, blood pressure, and blood sugar level.
Unit 5- anatomy and physiology for health and social care Tissue types within the human body Nervous tissue Function of the nervous tissue include acting as a sensory input, incorporation, organisation of muscles and glands, homoeostasis and mental activity. All living cells have the capability of react to stimuli. The nervous tissue specialised to react to stimuli and conducts impulses to various organs in the body which bring about a response to the stimulus. The basic structure of the nervous tissue is a neuron, consisting of a nervous cell body and serval processes dendrites, which carrys impulses towards the nervous cell body and axon which carry impulses away from the cell body. Nervous tissues are found is all organs in the body some have more than others thought, Maximum in the nervous system, least in fatty deposits.
The nervous system is defined by the presence of a special type of cell, called the neuron. Neurons send signals with rapid precision to other cells with special structures that allow them to accomplish this task. Sensory neurons carry impulses or electrochemical signals to the interneurons of the brain. The interneurons interpret these impulses while the motor neurons carry
Skin appendages, which derive from the epidermis, include hairs and hair follicles, nails, and glands. In humans the main function of hair is to sense insects on the skin before they bite or sting us. Hair on the scalp guards the head against physical trauma, heat loss, and sunlight. Eyelashes shield the eyes, and nose hairs filter large parties from the air we inhale. Nails provide a protective covering on the dorsal surface of the distal part of a finger or toe.
DERMATOLOGY Skin is the largest organ of the body, covering and protecting the entire surface of the body. The total surface area of skin is around 3000 sq inches or roughly around 19,355 sq cm depending on age, height, and body size. The skin, along with its derivatives, nails, hair, sweat glands, and sebaceous glands forms the integumentary system. Besides providing protection to the body the skin has a host of other functions to be performed like regulating body temperature, immune protection, sensations of touch, heat, cold, and pain through the sensory nerve endings, communicating with external openings of numerous other body systems like digestive system, urogenital system, and respiratory system via mucous membranes and also one of the most important function of acting as a storage house of energy by collection of adipose tissue, which is the principal fat depot in the body. It is the first line of defense of our body against any organism.
The brain is a powerful organ if you understand its full potential. The brain has two main communication systems, the nervous system and the endocrine system. According to Zimbardo, Johnson, & McCann (2012) “Out of the two, the fast acting nervous system carries messages in pulses of electrical and chemical energy through the body; the slower endocrine system sends follow up messages that support and sustain the response initiated by the nervous system”. Neurons are the building block of the nervous system. Sensory, Motor, and Interneuron are the three major classes of neurons.
The Pituitary Gland The body contains a system for communicating, coordinating and controlling the bodies work. This is known as the endocrine system. The endocrine system works together with other systems and glands in the body to maintain and control body energy levels, reproductions, growth and development, homeostasis and responses to stress and injury. To maintain these functions, a network of glands and organs produce, store, and secrete certain hormones to complete different body functions. Hormones, which are chemical messengers, transfer information from one gland to another for important body functions.
Besides psoriasis, onychatrophia is also caused by lichen planus. Lichen planus is a chronic disease that affects the oral mucosa and the skin. There will be lesions, papules and rashes on the skin of people who have lichen planus. Epidermolysis bullosa dystrophica is another ailment that leads to onychatrophia. People with this disorder are frequently referred to as ‘butterfly children’ due to the fragile nature of their skin.
White matter is a component of the central nervous system, in the brain and superficial spinal cord, and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers. Gray matter is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil (dendrites and myelinated as well as unmyelinated axons), glial cells (astroglia and oligodendrocytes) and capillaries. Grey matter is