brain parts and nerves- anat and phys

Cerebellum

muscle movement, balance, coordination, precision, accurate timing, posture

Longitudinal fissure

divides left and right cerebral hemispheres

Right hemisphere

art, creative, adventurous, left side vision and motor skills

Left hemisphere

Math/Science, logic, reasoning, right side vision and motor skills

Cerebrum

movement, temperature, touch, vision, hearing, judgement, reasoning, problem solving, emotions, learning

Olfactory bulbs

receives input about smell

Oculomotor nerves

eye and eyelid movements, pupil size

Frontal lobe

voluntary motor function, motivation, aggression, sense of smell, and mood

Parietal lobe

integrates sensory info (touch, temperature, pressure, pain

Occipital lobe

receives visual input

Temporal lobe

receives and evaluates input for smell and hearing, involved in memory, abstract thought, and judgement

Arbor vitae

regulates incoming and outgoing messages within the brain

Gyri

folds

Sulci

grooves in between folds

Superior colliculus

head, eyes, and body movements and reflexes toward stimulus

Inferior colliculus

involved in auditory pathway

Fornix

connects hippocampus to thalamus and mammillary bodies, cognition and episodic memory recall

Lateral ventricle

houses CSF

Third ventricle

holds and moves CSF to protect and cushion brain

Corpus callosum

connects left and right sides of brain

Spinal cord

communicates brain with rest of body

Pons

relays info between cerebrum and cerebellum, REM, respiratory movements

Thalamus

relay motor and sensory signals to and from the cerebral cortex, influences mood and actions associated with strong emotions like fear and rage

Hypothalamus

Control center of endocrine system. has mammillary bodies, olfactory reflexes and emotional response to odors, memory.

Optic chiasm

where the optic nerves cross over; allows visual cortex to receive visual field from both eyes

Medulla oblongata

reflexes: heart rate, breathing, swallowing, vomiting, coughing, sneezing

Pineal gland

produces melatonin, sleep/wake cycle

Midbrain

visual reflex center and part of auditory pathway

Olfactory

sensory, sense of smell. EX: peppermint oil to nose

Optic

sensory, sense of vision. EX: visual chart

Oculomotor

motor, eye and eyelid movements + pupil size. EX: blink (flinch)

Trochlear

motor, eye movements. EX: looking down

Trigeminal

sensory and motor, sensation from face + movement of jaw. EX: cotton ball

Abducens

motor, eye movement. EX: look side to side w eyes

Facial

sensory and motor, facial expressions and taste EX: paper taste, symmetrical eyebrows

Vestibulocochlear

sensory, hearing and balance. EX: hear snaps, balance on foot

Glossopharyngeal

sensory and motor, taste + salivation. EX: paper posterior taste

Vagus

sensory and motor, taste + swallowing EX: pulse, uvula dropping

Accessory

mainly motor, head + neck movements. EX: shrugging

Hypoglossal

mainly motor, tongue movements. EX: tongue straight out