Catalyst Hope you had a great Spring Break! 1.Sit at your assigned table. 2.Take out the work you completed with the substitute on Monday and Tuesday.

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Presentation transcript:

Catalyst Hope you had a great Spring Break! 1.Sit at your assigned table. 2.Take out the work you completed with the substitute on Monday and Tuesday.

Agenda Catalyst Opening/Objective Lesson: Nervous System Open-Ended: Work Time

Announcements Midterm Assessment ▫April 8 th and 9 th (Tuesday and Wednesday) ▫Open-note (as always) ▫Cumulative  Includes all information covered this quarter :  Integumentary system  Muscular system  Skeletal system  Nervous system  Most of the questions should be familiar to you, so be sure to look over any areas that gave you problems on previous exams.  I will post the correct answers to past exams on the “Answer Board” by Monday

The Nervous System: Part I Focus on the Central Nervous System

Components Human Nervous System Central Nervous System Peripheral Nervous System Somatic Nervous System Autonomic Nervous System Sympathetic Nervous System Parasympathetic Nervous System

Central Nervous System Human Nervous System Central Nervous System Peripheral Nervous System Somatic Nervous System Autonomic Nervous System Sympathetic Nervous System Parasympathetic Nervous System

Central Nervous System Main Components: the brain and the spinal cord ▫Both are covered by the meninges (three layers of connective tissue) Functions: Processes information from the peripheral nervous system and sends signals back

The Brain Forebrain Midbrain Hindbrain

The Forebrain Cerebrum: higher brain function; thought and action 1.Frontal Lobe: reasoning/problem-solving; judgment; impulses; motor control; memory 2.Parietal Lobe: processes pain and touch sensation; cognition (mental activities) 3.Occipital Lobe: visual sensation and processing 4.Temporal Lobe: processes sound and language; emotion; memory; and speech

The Forebrain Thalamus: sends signals to other parts of the brain; motor control Hypothalamus: temperature; apetite; thirst; sleep Cerebral Cortex: “grey matter”; covers the cerebrum and cerebellum; processing information Corpus Callosum: connects the two hemispheres (halves) of the brain

The Forebrain Limbic System: emotions; motivation; emotional ties to memory ▫Hippocampus: short- and long-term memory indexing (processing); affected severely by Alzheimer’s disease ▫Amygdala: conditioned learning, especially fear/anger/rage ▫Olfactory Bulb: sense of smell; connected to amygdala  That’s why scents can bring back vivid memories!

The Forebrain Pituitary Gland: growth during childhood; temperature; thyroid function; urine production; testosterone production in males and ovulation/estrogen production in females Pineal Gland: controls sleep/wake cycles via melatonin production

The Midbrain Portion of the Brainstem: connects the forebrain and hindbrain ▫Involved in auditory and visual responses; motor function

The Hindbrain Pons: arousal, consciousness, and sleep Cerebellum: controls movement; posture; balance Medulla Oblongata: automatic functions like breathing, heart rate, and digestion

Spinal Cord Cylindrical bundle of nerve fibers that connects to the brain