Answer #1: Multimedia Video on meningitis Question #2: Three things you learned in the chapter readings for this week Answer #2: The Parts of the Brain The brain is an organ in the head of our bodies that is vital to human life. The brain controls most bodily functions. It is made up of five different parts that are the cerebrum, thalamus, hypothalamus, cerebellum, and the brainstem. All of these different parts work to control different parts of our bodies and different functions. The cerebrum is the biggest part of the brain and located at the highest part. The cerebral cortex is an outer layer of the cerebrum which is made up of deep grooves or fissures. The cerebrum is divided into two different hemispheres and is made up of four different lobes. The cerebrum is a very important part of the brain because it produces the ability to think, pass judgement, and the ability to remember and have emotions. It also is responsible all motor and sensory functions. The two hemispheres are the right and left cerebral hemispheres. The left cerebral hemisphere controls all of the bodies functions on the right side of the body, while the right cerebral hemisphere controls all the bodies functions of the left side of the body. The four lobes that make up the cerebrum are the frontal, parietal, occipital, and temporal lobes. The frontal lobe controls things like a persons memory, their behavior, and motor function. The parietal lobe receives the nerve impulses from places such as the tongue, skin or muscles (sensory receptors) and then interprets the impulse and decides what to do with it. The occipital lobe is the lobe responsible for controlling a person’s eyesight. The temporal lobe has many different functions, the functions are to control a person’s hearing, and their sense of smell. The temporal lobe gives the person the ability to create, store and access new information in the brain. The thalamus is the part of the brain that deals with stimuli. The thalamus is located underneath the cerebrum, it takes information from the spinal cord and the midbrain and transports it to the cerebral cortex. It has the ability to turn the “volume” up or down on different stimuli (suppresses/magnifies). The hypothalamus has seven different major functions that control very important bodily activities. The hypothalamus is located under the thalamus, and the seven different functions are as follows…. 18
HIT111 DISCUSSION QUESTIONS 1. The regulation of the autonomic nervous system, which includes the regulation of heart rate, blood pressure, respiratory rate and digestive tract activity. 2. The regulation of a person’s body temperature so it is at a steady healthy temperature and doesn’t get too high or too low. 3. The regulation of hunger sensations, which in turn is the regulation of how much food is entering the body.
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