THE BRAIN Flashcards
Floats on a bath of CEROBROSPINAL FLUID (CSF) and is protected by the skull.
Brain
CSF
Cerobrospinal Fluid
Jelly like and extra soft weighing about 1400 grams
Brain
is the long, thin, tubular bundle of nerves and supporting cells that extends down from the brain. It is the central throughway of information for the body
Spinal Cord
serves as the bridge between the hindbrain and the forebrain. Responsible in linking the sensory and motor pathways between the upper and the lower parts of the nervous system.
Midbrain
consists of the cerebrum, thalamus, and hypothalamus
Forebrain
composed of the pons, medulla oblongata and the cerebellum. It is connected to the spinal cord.
Hindbrain
“Seat of Consciousness”
Cerebrum
“master organ” and is the busiest part of the body
it controls and directs all activities in the nervous system
Brain
The Frontal Lobe of the brain is located deep to the
Frontal bone of the skull
Located behind the forehead and responsible primarily for thinking, planning, memory, and judgment
Lobes of the Brain: Frontal
The Parietal Lobe of the brain is located deep to the
Parietal Bone of the skull
Located from the middle to the back of the skull, and responsible primarily for processing information about touch and taste. These lobes also receive input from vision, which helps us identify objects by touch and locate objects in space.
- Senses and integrates sensation(s)
- Spatial awareness and perception
Parietal Lobe of the Brain
Awareness of body/ body parts in space and in relation to each other
Proprioception
Its primary function is the processing, integration, interpretation, etc. of VISION and visual stimuli
The Occipital Lobe
Located at the sides of the brain and responsible for hearing, language, and integrating vision and
audition.
* Hearing
* Organization
* Comprehension of language
* Information Retrieval (Memory and Memory Formation)
The Temporal Lobe
also known as the paleomammalian cortex, is a set of brain structures located on both sides of the thalamus, immediately beneath the medial temporal lobe of the cerebrum primarily in the forebrain.
The Limbic System
which is responsible in changing short term memories into long term memories
Hippocampus (Sea Horse)
Located at the very back of the skull, and processes visual information.
The Occipital Lobe
cause aggressive behavior/primarily responsible for regulating our perceptions of, and reactions to, aggression and fear. brain region largely responsible for memory and emotions, including our responses to reward and punishment.
Amygdala (Almond)
seat of emotion, maintains homeostasis by regulating some involuntary activities/links the nervous system to the endocrine system via the pituitary gland, and thus
regulates body temperature, hunger, thirst, and sex. It also responds to the satisfaction of these
needs by creating feelings of pleasure
Hypothalamus
Relay center
The Thalamus
controls our sleep and arousal
Reticular Activating System (RAS)
is the oldest and innermost region of the brain and is wired for survival. It is designed to control the most basic functions of life, including breathing, attention, and motor responses
The Brain Stem
regulates the involuntary muscles
Medulla Oblongata
the area of the brain stem that
controls heart rate and breathing.
Medulla
a structure in the brain stem that is important to sleep and arousal.
PONS
Responsible for higher mental activities. The largest division of the brain. It is divided into two hemispheres, each of which is divided into four lobes.
Cerebrum
“little brain”- coordination of voluntary motor activities- maintains body balance and posture,
People who have damage to this part of brain have difficulty walking, keeping their balance, and holding their hands steady.
Cerebellum
consists of all the nerves branching out of the brain and spinal cord (PNS) consists of all the nerves branching out of the brain and spinal cord (the central nervous system, CNS). The PNS is built almost entirely from nerves
The Peripheral Nervous System (PNS)
2 Main parts of PNS
Spinal Nerves and Cranial Nerves
