--- Part of the central nervous system which is the control center of the entire nervous system. -----Scientist today generally agree that the mind is the main function of the brain ----it has been known for about two centuries that damage to the left side of the brain is connected with loss of sensation or movement on the right side of the body and vice versa.
The Electroencephalograph (EEG)
__ A method of detecting brain waves by means of measuring the current between electrodes place on the scalp.
COMPUTERIZE AXIAL TOMOGRAPHY (CAT OR CT SCAN)
----- a method of brain imaging that passes a narrow X-ray beam through the head and measures structures that reflect the rays from various angle, enabling a computer to generate three-dimension angle. POSITRON EMISSION TOMOGRAPHY (PET SCAN)
-----a method of brain imaging that injects a radioactive tracer into the bloodstream and assesses activity of parts of the brain according to the amount of glucose they metabolize. MAGNETIC REASONANCE IMAGINGN (MRI)
-----A method of brain imaging that places a person in a magnetic field and uses radio waves to cause the brain to emit signals that reveal shifts in the flow of blood, which, in turn, indicate brain activity.
FUNCTIONAL MRI (FMRI)
-----a form of MRI that enables researches to observe the brain “while it works” by taking repeated scans.
STRUCTURES AND FUNCTION OF THE BRAIN
HINDBRAIN – where the spinal cord rises to meet the brain
(PICTURE OF THE PARTS OF BRAIN)
THREE MAJOR STRUCTURES:
1. MEDULLA - an oblong area of the hindbrain involved regulation of heartbeat and respiration. 2. PONS - a structure of the hindbrain involved in respiration, attention and sleep and dreaming. 3. CEREBELLUM – a part of the hindbrain involved in muscle coordination and balance. OTHER PARTS:
4. PITUITARY GLAND - Secrets hormones that regulate many body function,...