Nervous Endocrine Systems Nervous system 2 parts Central

Nervous & Endocrine Systems

Nervous system: 2 parts § Central Nervous system: brain & spinal cord)

Peripheral Nervous System § All nerves EXCEPT the spinal cord and brain

Functions of Peripheral Nervous System § Somatic Nervous System: § sensory nerves & motor nerves (controlled responses) § Autonomic Nervous system (functions that are not controlled) § Sympathetic= increases energy use § Parasympathetic= decreases energy use

Parts of the Brain Part Location Function Cerebral Cortex Outermost layer of the brain Controls high level thought ( think of an egg shell)

Fissure Split in btwn. 2 hemispher es No function

Corpus Callosum In the fissure Communic ate btwn the 2 Network of hemispher long nerve es cells (spider web)

Frontal Lobe Front of the cerebral cortex Prefrontal: Re-experience through memory Frontal Association Area: makes strategies/ plans of action & makes sense of the environment

§ Parietal Lobe Back of the cerebral cortex Cognitio n 2)Informatio n Processing 3) Pain and Touch Sensati on 4) Spatial Orientat ion 5)Speech 6) Visual

Motor Strip Front (twds the middle) of the cerebral cortex Stimulate all movements

Occipital Lobe Farthest Vision & back part reading of the brain

Temporal Lobe Bottom of the cerebral cortex Hearing Some speech skills

Medulla Oblongata Upper part of Relay system the spinal cord for motor ( connects to function the brain) Respiration Cardiac functions Reflexes

Endocrine System § Parts of the Endocrine System § Hormones: chemical that activate parts of body asses were able tothe correctly determine that the feet have the most myelin for the sense of t § Glands: areas where hormones are held § Gland cells------

Gonads Reproductive areas 1) make sperm/eggs 2) Men inc. androgen + women inc. estrogen 3) Determines physical appearance (ex. Body hair) 4) Androgen starts sexual arousal 5) In humans sexual arousal is learned by the cerebral cortex + is communicated even after removing gonads

Gland Location Function Pituitary Lower center of 1) Sends the head messages to activate other glands Attached to the 2) Determines hypothalmus height 3) Effected by food and environment

Thyroid Base of the neck, connecting to the chest 1) Metabolis m Too fast: hyper and anxious Too slow: fatigue Very slow since birth: mental retardation

Adrenal Each side of the back near the belly button 1) signals emergencies (real/ imagined) 2) Put adrenaline (hormone) into the blood stream= inc. respiration & blood pressure, muscles tense, sweat, inc. sugar in the blood stream (inc. energy), inc. clotting speed