The Brain: Control Center of the Body, Controller of All Organs
The brain sends signals from cell to cell with the use of neurotransmitters. The synapse is where electrical signals are passed on, and where ions and electrical impulse signals the release of the neurotransmitter. The neurotransmitter bind to receptor proteins located on the dendrites of the receiving cell; this action can fire the receiving cell or inhibit it from continuing.
Four Lobes of the Brain
Frontal Lobes- is the base for speech, movement, and aspects of personality
Parietal Lobes- is for bodily sensations such as touch, temperature, pressure and pain. These are perceived and interpreted in the region called the somatosensory cortex.
Temporal Lobes- recognizes sounds, their tones, and volume.
Occipital Lobes- analyzes and interprets visual information from sensory signals sent by eyes.
Functions of Parts of the Brain
Cerebellum- located inferior to the Occipital lobe and posterior from the Frontal Lobe. Its concerned with motor information (posture and balance).
MidBrain- Its involved with body movement, eye movement, hearing, and vision.
Pons- Located inferior to midbrain and is involved in motor control and sensory analysis
Medulla Oblongata- Located inferior to pons. Its function is for breathing and heart rate.
Thalamus- Its located underneath the cerebrum, superior to the midbrain. Its functions are for sensory and motor functions. Almost all sensory informations enters this structure where neurons send that information to the overlying cortex.
Hypothalamus- Located inferior to the thalamus. Its function includes homeostasis, emotion, thirst, hunger, circadian rhythms, and control of the autonomic nervous system. In addition it controls the pituitary glands.
Fissures (sulci and gyri)- It adds to the surface area and therefore increase the amount of grey matter and the quantity of information that can be processed.
Four Lobes of the Brain
Frontal Lobes- is the base for speech, movement, and aspects of personality
Parietal Lobes- is for bodily sensations such as touch, temperature, pressure and pain. These are perceived and interpreted in the region called the somatosensory cortex.
Temporal Lobes- recognizes sounds, their tones, and volume.
Occipital Lobes- analyzes and interprets visual information from sensory signals sent by eyes.
Functions of Parts of the Brain
Cerebellum- located inferior to the Occipital lobe and posterior from the Frontal Lobe. Its concerned with motor information (posture and balance).
MidBrain- Its involved with body movement, eye movement, hearing, and vision.
Pons- Located inferior to midbrain and is involved in motor control and sensory analysis
Medulla Oblongata- Located inferior to pons. Its function is for breathing and heart rate.
Thalamus- Its located underneath the cerebrum, superior to the midbrain. Its functions are for sensory and motor functions. Almost all sensory informations enters this structure where neurons send that information to the overlying cortex.
Hypothalamus- Located inferior to the thalamus. Its function includes homeostasis, emotion, thirst, hunger, circadian rhythms, and control of the autonomic nervous system. In addition it controls the pituitary glands.
Fissures (sulci and gyri)- It adds to the surface area and therefore increase the amount of grey matter and the quantity of information that can be processed.