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.
A conclusion will then be drawn based on the discussion. The brain is an essential organ of the body. It is the control center for all the body’s activities, such as walking, talking, swallowing, breathing taste, smell and heart beat. The brain also controls our thinking functions, our intellectual activities as well as our emotions. Hemispheric specialization refers to the dominance of one hemisphere of the brain in specific functions, such as language, emotions, motor control and so on ( Feldman, 2009).
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.
Some common disorders affecting the central nervous system. These neurological disorders include multiple sclerosis, Alzheimer's disease, Parkinson's disease, epilepsy, and stroke, and can affect memory and ability to perform daily activities. The CNS is made up of the brain, brain stem, and spinal cord. The brain is the main data center of the body and consists of the cerebrum which regulates higher level functioning such as thought, and the cerebellum which maintains coordination. The central nervous system is protected in many ways.
D. Myelin sheaths are responsible for the refractory period after a neuron has fired. 3. In the human body, the ______________ nervous system is responsible for activating the body for such things as the fight-or-flight response, whereas the ___________ nervous system is responsible for calming and slowing down the body. A. autonomic; somatic B. somatic; autonomic C. parasympathetic; sympathetic D. sympathetic; parasympathetic 4. The brain stem is found in the hindbrain and is comprised of the ________, which controls vital functions like respiration and heart rate, and the ________, which acts as a bridge between higher and lower levels of
It has widespread connections with the rest of the forebrain and the midbrain. Partly through nerves and partly through hypothalamic hormones, the hypothalamus conveys messages to the pituitary gland, altering its release of hormones (Kalat, 2003). According to “American Accreditation Health Commission,” The hypothalamus is responsible for certain metabolic processes and other activities of the autonomic nervous system. It synthesizes and secretes certain neurohormones, often called hypothalamic-releasing hormones, and these in turn stimulate or inhibit the secretion of pituitary hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycle.
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.
That is how your body parts interacts and communicate with each other. Neurons communicate by releasing neurotransmitters which fits on a receptor of another neuron close by. There are axons grouped together like a bunch of electrical wire that we call our nerves. A resting neuron has a partial barrier around the cell called a membrane. It protects the fluids inside and outside the neuron.
The short route is the first one which goes from thalamus to amygdala, the long route is the second one that passes through the neocortex and hippocampus before it comes out as an emotional reaction. The amygdala gets an input from the sensory processing areas in the neocortex and thalamus, and plans these, to areas in the brainstem that organize the response system, as fight or flight. These are the relations between the different brain organizations that allow the amygdala to convert sensory information into emotional indications, and to begin and organize emotional responses. The emotional stimulus is first procedure in the thalamus, which sends a sign to the amygdala. The awareness of the probable stressor allows the brain to send signals to the body so that it can get into action.